/src/php-src/ext/json/json_encoder.c

Source
/*
  +----------------------------------------------------------------------+
  | Copyright (c) The PHP Group                                          |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | https://www.php.net/license/3_01.txt                                 |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Author: Omar Kilani <omar@php.net>                                   |
  |         Jakub Zelenka <bukka@php.net>                                |
  +----------------------------------------------------------------------+
*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "php.h"
#include "ext/standard/html.h"
#include "zend_smart_str.h"
#include "php_json.h"
#include "php_json_encoder.h"
#include "zend_portability.h"
#include <zend_exceptions.h>
#include "zend_enum.h"
#include "zend_property_hooks.h"
#include "zend_lazy_objects.h"

static const char digits[] = "0123456789abcdef";

static zend_always_inline bool php_json_check_stack_limit(void)
{
#ifdef ZEND_CHECK_STACK_LIMIT
  return zend_call_stack_overflowed(EG(stack_limit));
#else
  return false;
#endif
}

/* {{{ Pretty printing support functions */

static inline void php_json_pretty_print_char(smart_str *buf, int options, char c) /* {{{ */
{
  if (options & PHP_JSON_PRETTY_PRINT) {
    smart_str_appendc(buf, c);
  }
}
/* }}} */

static inline void php_json_pretty_print_indent(smart_str *buf, int options, const php_json_encoder *encoder) /* {{{ */
{
  if (options & PHP_JSON_PRETTY_PRINT) {
    for (int i = 0; i < encoder->depth; ++i) {
      smart_str_appendl(buf, "    ", 4);
    }
  }
}
/* }}} */

/* }}} */

static
#if defined(_MSC_VER) && defined(_M_ARM64)
// MSVC bug: https://developercommunity.visualstudio.com/t/corrupt-optimization-on-arm64-with-Ox-/10102551
zend_never_inline
#else
inline
#endif
bool php_json_is_valid_double(double d) /* {{{ */
{
  return !zend_isinf(d) && !zend_isnan(d);
}
/* }}} */

static inline void php_json_encode_double(smart_str *buf, double d, int options) /* {{{ */
{
  size_t len;
  char num[ZEND_DOUBLE_MAX_LENGTH];

  zend_gcvt(d, (int)PG(serialize_precision), '.', 'e', num);
  len = strlen(num);
  if (options & PHP_JSON_PRESERVE_ZERO_FRACTION && strchr(num, '.') == NULL && len < ZEND_DOUBLE_MAX_LENGTH - 2) {
    num[len++] = '.';
    num[len++] = '0';
    num[len] = '\0';
  }
  smart_str_appendl(buf, num, len);
}
/* }}} */

#define PHP_JSON_HASH_PROTECT_RECURSION(_tmp_ht) \
  do { \
    if (_tmp_ht) { \
      GC_TRY_PROTECT_RECURSION(_tmp_ht); \
    } \
  } while (0)

#define PHP_JSON_HASH_UNPROTECT_RECURSION(_tmp_ht) \
  do { \
    if (_tmp_ht) { \
      GC_TRY_UNPROTECT_RECURSION(_tmp_ht); \
    } \
  } while (0)

static zend_result php_json_encode_array(smart_str *buf, zval *val, int options, php_json_encoder *encoder) /* {{{ */
{
  bool encode_as_object = options & PHP_JSON_FORCE_OBJECT;
  bool need_comma = false;
  HashTable *myht, *prop_ht;
  zend_refcounted *recursion_rc;

  if (php_json_check_stack_limit()) {
    encoder->error_code = PHP_JSON_ERROR_DEPTH;
    if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
      smart_str_appendl(buf, "null", 4);
    }
    return FAILURE;
  }

  if (Z_TYPE_P(val) == IS_ARRAY) {
    myht = Z_ARRVAL_P(val);
    recursion_rc = (zend_refcounted *)myht;
    prop_ht = NULL;
    encode_as_object = encode_as_object || !zend_array_is_list(myht);
  } else if (Z_OBJ_P(val)->properties == NULL
   && Z_OBJ_HT_P(val)->get_properties_for == NULL
   && Z_OBJ_HT_P(val)->get_properties == zend_std_get_properties
   && Z_OBJ_P(val)->ce->num_hooked_props == 0
   && !zend_object_is_lazy(Z_OBJ_P(val))) {
    /* Optimized version without rebuilding properties HashTable */
    zend_object *obj = Z_OBJ_P(val);
    const zend_class_entry *ce = obj->ce;

    if (GC_IS_RECURSIVE(obj)) {
      encoder->error_code = PHP_JSON_ERROR_RECURSION;
      smart_str_appendl(buf, "null", 4);
      return FAILURE;
    }

    PHP_JSON_HASH_PROTECT_RECURSION(obj);

    smart_str_appendc(buf, '{');

    ++encoder->depth;

    for (int i = 0; i < ce->default_properties_count; i++) {
      zend_property_info *prop_info = ce->properties_info_table[i];
      if (!prop_info) {
        continue;
      }
      if (ZSTR_VAL(prop_info->name)[0] == '\0' && ZSTR_LEN(prop_info->name) > 0) {
        /* Skip protected and private members. */
        continue;
      }
      zval *prop = OBJ_PROP(obj, prop_info->offset);
      if (Z_TYPE_P(prop) == IS_UNDEF) {
        continue;
      }

      if (need_comma) {
        smart_str_appendc(buf, ',');
      } else {
        need_comma = true;
      }

      php_json_pretty_print_char(buf, options, '\n');
      php_json_pretty_print_indent(buf, options, encoder);

      if (php_json_escape_string(buf, ZSTR_VAL(prop_info->name), ZSTR_LEN(prop_info->name),
          options & ~PHP_JSON_NUMERIC_CHECK, encoder) == FAILURE &&
          (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) &&
          buf->s) {
        ZSTR_LEN(buf->s) -= 4;
        smart_str_appendl(buf, "\"\"", 2);
      }

      smart_str_appendc(buf, ':');
      php_json_pretty_print_char(buf, options, ' ');

      if (php_json_encode_zval(buf, prop, options, encoder) == FAILURE &&
          !(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
        PHP_JSON_HASH_UNPROTECT_RECURSION(obj);
        return FAILURE;
      }
    }

    PHP_JSON_HASH_UNPROTECT_RECURSION(obj);
    if (encoder->depth > encoder->max_depth) {
      encoder->error_code = PHP_JSON_ERROR_DEPTH;
      if (!(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
        return FAILURE;
      }
    }
    --encoder->depth;

    if (need_comma) {
      php_json_pretty_print_char(buf, options, '\n');
      php_json_pretty_print_indent(buf, options, encoder);
    }
    smart_str_appendc(buf, '}');
    return SUCCESS;
  } else {
    zend_object *obj = Z_OBJ_P(val);
    prop_ht = myht = zend_get_properties_for(val, ZEND_PROP_PURPOSE_JSON);
    if (obj->ce->num_hooked_props == 0) {
      recursion_rc = (zend_refcounted *)prop_ht;
    } else {
      /* Protecting the object itself is fine here because myht is temporary and can't be
       * referenced from a different place in the object graph. */
      recursion_rc = (zend_refcounted *)obj;
    }
    encode_as_object = true;
  }

  if (recursion_rc && GC_IS_RECURSIVE(recursion_rc)) {
    encoder->error_code = PHP_JSON_ERROR_RECURSION;
    smart_str_appendl(buf, "null", 4);
    zend_release_properties(prop_ht);
    return FAILURE;
  }

  PHP_JSON_HASH_PROTECT_RECURSION(recursion_rc);

  if (!encode_as_object) {
    smart_str_appendc(buf, '[');
  } else {
    smart_str_appendc(buf, '{');
  }

  ++encoder->depth;

  uint32_t i = myht ? zend_hash_num_elements(myht) : 0;

  if (i > 0) {
    zend_string *key;
    zval *data;
    zend_ulong index;

    ZEND_HASH_FOREACH_KEY_VAL_IND(myht, index, key, data) {
      zval tmp;
      ZVAL_UNDEF(&tmp);

      if (!encode_as_object) {
        ZEND_ASSERT(Z_TYPE_P(data) != IS_PTR);

        if (need_comma) {
          smart_str_appendc(buf, ',');
        } else {
          need_comma = true;
        }

        php_json_pretty_print_char(buf, options, '\n');
        php_json_pretty_print_indent(buf, options, encoder);
      } else {
        if (key) {
          if (ZSTR_VAL(key)[0] == '\0' && ZSTR_LEN(key) > 0 && Z_TYPE_P(val) == IS_OBJECT) {
            /* Skip protected and private members. */
            continue;
          }

          /* data is IS_PTR for properties with hooks. */
          if (UNEXPECTED(Z_TYPE_P(data) == IS_PTR)) {
            zend_property_info *prop_info = Z_PTR_P(data);
            if ((prop_info->flags & ZEND_ACC_VIRTUAL) && !prop_info->hooks[ZEND_PROPERTY_HOOK_GET]) {
              continue;
            }
            data = zend_read_property_ex(prop_info->ce, Z_OBJ_P(val), prop_info->name, /* silent */ true, &tmp);
            if (EG(exception)) {
              PHP_JSON_HASH_UNPROTECT_RECURSION(recursion_rc);
              zend_release_properties(prop_ht);
              return FAILURE;
            }
          }

          if (need_comma) {
            smart_str_appendc(buf, ',');
          } else {
            need_comma = true;
          }

          php_json_pretty_print_char(buf, options, '\n');
          php_json_pretty_print_indent(buf, options, encoder);

          if (php_json_escape_string(buf, ZSTR_VAL(key), ZSTR_LEN(key),
                options & ~PHP_JSON_NUMERIC_CHECK, encoder) == FAILURE &&
              (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) &&
              buf->s) {
            ZSTR_LEN(buf->s) -= 4;
            smart_str_appendl(buf, "\"\"", 2);
          }
        } else {
          if (need_comma) {
            smart_str_appendc(buf, ',');
          } else {
            need_comma = true;
          }

          php_json_pretty_print_char(buf, options, '\n');
          php_json_pretty_print_indent(buf, options, encoder);

          smart_str_appendc(buf, '"');
          smart_str_append_long(buf, (zend_long) index);
          smart_str_appendc(buf, '"');
        }

        smart_str_appendc(buf, ':');
        php_json_pretty_print_char(buf, options, ' ');
      }

      if (php_json_encode_zval(buf, data, options, encoder) == FAILURE &&
          !(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
        PHP_JSON_HASH_UNPROTECT_RECURSION(recursion_rc);
        zend_release_properties(prop_ht);
        zval_ptr_dtor(&tmp);
        return FAILURE;
      }
      zval_ptr_dtor(&tmp);
    } ZEND_HASH_FOREACH_END();
  }

  PHP_JSON_HASH_UNPROTECT_RECURSION(recursion_rc);

  if (encoder->depth > encoder->max_depth) {
    encoder->error_code = PHP_JSON_ERROR_DEPTH;
    if (!(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
      zend_release_properties(prop_ht);
      return FAILURE;
    }
  }
  --encoder->depth;

  /* Only keep closing bracket on same line for empty arrays/objects */
  if (need_comma) {
    php_json_pretty_print_char(buf, options, '\n');
    php_json_pretty_print_indent(buf, options, encoder);
  }

  if (!encode_as_object) {
    smart_str_appendc(buf, ']');
  } else {
    smart_str_appendc(buf, '}');
  }

  zend_release_properties(prop_ht);
  return SUCCESS;
}
/* }}} */

zend_result php_json_escape_string(
    smart_str *buf, const char *s, size_t len,
    int options, php_json_encoder *encoder) /* {{{ */
{
  size_t pos, checkpoint;
  char *dst;

  if (len == 0) {
    smart_str_appendl(buf, "\"\"", 2);
    return SUCCESS;
  }

  if (options & PHP_JSON_NUMERIC_CHECK) {
    double d;
    int type;
    zend_long p;

    if ((type = is_numeric_string(s, len, &p, &d, 0)) != 0) {
      if (type == IS_LONG) {
        smart_str_append_long(buf, p);
        return SUCCESS;
      } else if (type == IS_DOUBLE && php_json_is_valid_double(d)) {
        php_json_encode_double(buf, d, options);
        return SUCCESS;
      }
    }

  }
  checkpoint = buf->s ? ZSTR_LEN(buf->s) : 0;

  /* pre-allocate for string length plus 2 quotes */
  smart_str_alloc(buf, len+2, 0);
  smart_str_appendc(buf, '"');

  pos = 0;

  do {
    static const uint32_t charmap[8] = {
      0xffffffff, 0x500080c4, 0x10000000, 0x00000000,
      0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff};

    unsigned int us = (unsigned char)s[pos];
    if (EXPECTED(!ZEND_BIT_TEST(charmap, us))) {
      pos++;
      len--;
      if (len == 0) {
        smart_str_appendl(buf, s, pos);
        break;
      }
    } else {
      if (pos) {
        smart_str_appendl(buf, s, pos);
        s += pos;
        pos = 0;
      }
      us = (unsigned char)s[0];
      if (UNEXPECTED(us >= 0x80)) {
        zend_result status;
        us = php_next_utf8_char((unsigned char *)s, len, &pos, &status);

        /* check whether UTF8 character is correct */
        if (UNEXPECTED(status != SUCCESS)) {
          if (options & PHP_JSON_INVALID_UTF8_IGNORE) {
            /* ignore invalid UTF8 character */
          } else if (options & PHP_JSON_INVALID_UTF8_SUBSTITUTE) {
            /* Use Unicode character 'REPLACEMENT CHARACTER' (U+FFFD) */
            if (options & PHP_JSON_UNESCAPED_UNICODE) {
              smart_str_appendl(buf, "\xef\xbf\xbd", 3);
            } else {
              smart_str_appendl(buf, "\\ufffd", 6);
            }
          } else {
            ZSTR_LEN(buf->s) = checkpoint;
            encoder->error_code = PHP_JSON_ERROR_UTF8;
            if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
              smart_str_appendl(buf, "null", 4);
            }
            return FAILURE;
          }

        /* Escape U+2028/U+2029 line terminators, UNLESS both
           JSON_UNESCAPED_UNICODE and
           JSON_UNESCAPED_LINE_TERMINATORS were provided */
        } else if ((options & PHP_JSON_UNESCAPED_UNICODE)
            && ((options & PHP_JSON_UNESCAPED_LINE_TERMINATORS)
            || us < 0x2028 || us > 0x2029)) {
          smart_str_appendl(buf, s, pos);
        } else {
          /* From http://en.wikipedia.org/wiki/UTF16 */
          if (us >= 0x10000) {
            unsigned int next_us;

            us -= 0x10000;
            next_us = (unsigned short)((us & 0x3ff) | 0xdc00);
            us = (unsigned short)((us >> 10) | 0xd800);
            dst = smart_str_extend(buf, 6);
            dst[0] = '\\';
            dst[1] = 'u';
            dst[2] = digits[(us >> 12) & 0xf];
            dst[3] = digits[(us >> 8) & 0xf];
            dst[4] = digits[(us >> 4) & 0xf];
            dst[5] = digits[us & 0xf];
            us = next_us;
          }
          dst = smart_str_extend(buf, 6);
          dst[0] = '\\';
          dst[1] = 'u';
          dst[2] = digits[(us >> 12) & 0xf];
          dst[3] = digits[(us >> 8) & 0xf];
          dst[4] = digits[(us >> 4) & 0xf];
          dst[5] = digits[us & 0xf];
        }
        s += pos;
        len -= pos;
        pos = 0;
      } else {
        s++;
        switch (us) {
          case '"':
            if (options & PHP_JSON_HEX_QUOT) {
              smart_str_appendl(buf, "\\u0022", 6);
            } else {
              smart_str_appendl(buf, "\\\"", 2);
            }
            break;

          case '\\':
            smart_str_appendl(buf, "\\\\", 2);
            break;

          case '/':
            if (options & PHP_JSON_UNESCAPED_SLASHES) {
              smart_str_appendc(buf, '/');
            } else {
              smart_str_appendl(buf, "\\/", 2);
            }
            break;

          case '\b':
            smart_str_appendl(buf, "\\b", 2);
            break;

          case '\f':
            smart_str_appendl(buf, "\\f", 2);
            break;

          case '\n':
            smart_str_appendl(buf, "\\n", 2);
            break;

          case '\r':
            smart_str_appendl(buf, "\\r", 2);
            break;

          case '\t':
            smart_str_appendl(buf, "\\t", 2);
            break;

          case '<':
            if (options & PHP_JSON_HEX_TAG) {
              smart_str_appendl(buf, "\\u003C", 6);
            } else {
              smart_str_appendc(buf, '<');
            }
            break;

          case '>':
            if (options & PHP_JSON_HEX_TAG) {
              smart_str_appendl(buf, "\\u003E", 6);
            } else {
              smart_str_appendc(buf, '>');
            }
            break;

          case '&':
            if (options & PHP_JSON_HEX_AMP) {
              smart_str_appendl(buf, "\\u0026", 6);
            } else {
              smart_str_appendc(buf, '&');
            }
            break;

          case '\'':
            if (options & PHP_JSON_HEX_APOS) {
              smart_str_appendl(buf, "\\u0027", 6);
            } else {
              smart_str_appendc(buf, '\'');
            }
            break;

          default:
            ZEND_ASSERT(us < ' ');
            dst = smart_str_extend(buf, 6);
            dst[0] = '\\';
            dst[1] = 'u';
            dst[2] = '0';
            dst[3] = '0';
            dst[4] = digits[(us >> 4) & 0xf];
            dst[5] = digits[us & 0xf];
            break;
        }
        len--;
      }
    }
  } while (len);

  smart_str_appendc(buf, '"');

  return SUCCESS;
}
/* }}} */

static zend_result php_json_encode_serializable_object(smart_str *buf, zend_object *obj, int options, php_json_encoder *encoder)
{
  zend_class_entry *ce = obj->ce;
  uint32_t *guard = zend_get_recursion_guard(obj);
  zval retval;
  zend_result return_code;

  ZEND_ASSERT(guard != NULL);

  if (ZEND_GUARD_IS_RECURSIVE(guard, JSON)) {
    encoder->error_code = PHP_JSON_ERROR_RECURSION;
    if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
      smart_str_appendl(buf, "null", 4);
    }
    return FAILURE;
  }

  ZEND_GUARD_PROTECT_RECURSION(guard, JSON);

  zend_function *json_serialize_method = zend_hash_str_find_ptr(&ce->function_table, ZEND_STRL("jsonserialize"));
  ZEND_ASSERT(json_serialize_method != NULL && "This should be guaranteed prior to calling this function");
  zend_call_known_function(json_serialize_method, obj, ce, &retval, 0, NULL, NULL);
  /* An exception has occurred */
  if (Z_TYPE(retval) == IS_UNDEF) {
    if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
      smart_str_appendl(buf, "null", 4);
    }
    ZEND_GUARD_UNPROTECT_RECURSION(guard, JSON);
    return FAILURE;
  }

  if (Z_TYPE(retval) == IS_OBJECT && Z_OBJ(retval) == obj) {
    /* Handle the case where jsonSerialize does: return $this; by going straight to encode array */
    ZEND_GUARD_UNPROTECT_RECURSION(guard, JSON);
    return_code = php_json_encode_array(buf, &retval, options, encoder);
  } else {
    /* All other types, encode as normal */
    return_code = php_json_encode_zval(buf, &retval, options, encoder);
    ZEND_GUARD_UNPROTECT_RECURSION(guard, JSON);
  }

  zval_ptr_dtor(&retval);

  return return_code;
}

static zend_result php_json_encode_serializable_enum(smart_str *buf, zval *val, int options, php_json_encoder *encoder)
{
  const zend_class_entry *ce = Z_OBJCE_P(val);
  if (ce->enum_backing_type == IS_UNDEF) {
    encoder->error_code = PHP_JSON_ERROR_NON_BACKED_ENUM;
    smart_str_appendc(buf, '0');
    return FAILURE;
  }

  zval *value_zv = zend_enum_fetch_case_value(Z_OBJ_P(val));
  return php_json_encode_zval(buf, value_zv, options, encoder);
}

zend_result php_json_encode_zval(smart_str *buf, zval *val, int options, php_json_encoder *encoder) /* {{{ */
{
again:
  switch (Z_TYPE_P(val))
  {
    case IS_NULL:
      smart_str_appendl(buf, "null", 4);
      break;

    case IS_TRUE:
      smart_str_appendl(buf, "true", 4);
      break;
    case IS_FALSE:
      smart_str_appendl(buf, "false", 5);
      break;

    case IS_LONG:
      smart_str_append_long(buf, Z_LVAL_P(val));
      break;

    case IS_DOUBLE:
      if (php_json_is_valid_double(Z_DVAL_P(val))) {
        php_json_encode_double(buf, Z_DVAL_P(val), options);
      } else {
        encoder->error_code = PHP_JSON_ERROR_INF_OR_NAN;
        smart_str_appendc(buf, '0');
      }
      break;

    case IS_STRING:
      return php_json_escape_string(buf, Z_STRVAL_P(val), Z_STRLEN_P(val), options, encoder);

    case IS_OBJECT:
      if (instanceof_function(Z_OBJCE_P(val), php_json_serializable_ce)) {
        return php_json_encode_serializable_object(buf, Z_OBJ_P(val), options, encoder);
      }
      if (Z_OBJCE_P(val)->ce_flags & ZEND_ACC_ENUM) {
        return php_json_encode_serializable_enum(buf, val, options, encoder);
      }
      /* fallthrough -- Non-serializable object */
      ZEND_FALLTHROUGH;
    case IS_ARRAY: {
      /* Avoid modifications (and potential freeing) of the array through a reference when a
       * jsonSerialize() method is invoked. */
      zval zv;
      zend_result res;
      ZVAL_COPY(&zv, val);
      res = php_json_encode_array(buf, &zv, options, encoder);
      zval_ptr_dtor_nogc(&zv);
      return res;
    }

    case IS_REFERENCE:
      val = Z_REFVAL_P(val);
      goto again;

    default:
      encoder->error_code = PHP_JSON_ERROR_UNSUPPORTED_TYPE;
      if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
        smart_str_appendl(buf, "null", 4);
      }
      return FAILURE;
  }

  return SUCCESS;
}
/* }}} */

Coverage Report

Created: 2025-09-27 06:26

Line	Count	Source
1		/*
2		+----------------------------------------------------------------------+
3		\| Copyright (c) The PHP Group \|
4		+----------------------------------------------------------------------+
5		\| This source file is subject to version 3.01 of the PHP license, \|
6		\| that is bundled with this package in the file LICENSE, and is \|
7		\| available through the world-wide-web at the following url: \|
8		\| https://www.php.net/license/3_01.txt \|
9		\| If you did not receive a copy of the PHP license and are unable to \|
10		\| obtain it through the world-wide-web, please send a note to \|
11		\| license@php.net so we can mail you a copy immediately. \|
12		+----------------------------------------------------------------------+
13		\| Author: Omar Kilani <omar@php.net> \|
14		\| Jakub Zelenka <bukka@php.net> \|
15		+----------------------------------------------------------------------+
16		*/
17
18		#ifdef HAVE_CONFIG_H
19		#include <config.h>
20		#endif
21
22		#include "php.h"
23		#include "ext/standard/html.h"
24		#include "zend_smart_str.h"
25		#include "php_json.h"
26		#include "php_json_encoder.h"
27		#include "zend_portability.h"
28		#include <zend_exceptions.h>
29		#include "zend_enum.h"
30		#include "zend_property_hooks.h"
31		#include "zend_lazy_objects.h"
32
33		static const char digits[] = "0123456789abcdef";
34
35		static zend_always_inline bool php_json_check_stack_limit(void)
36	240	{
37	240	#ifdef ZEND_CHECK_STACK_LIMIT
38	240	return zend_call_stack_overflowed(EG(stack_limit));
39		#else
40		return false;
41		#endif
42	240	}
43
44		/* {{{ Pretty printing support functions */
45
46		static inline void php_json_pretty_print_char(smart_str buf, int options, char c) / {{{ */
47	1.44k	{
48	1.44k	if (options & PHP_JSON_PRETTY_PRINT) {
49	0	smart_str_appendc(buf, c);
50	0	}
51	1.44k	}
52		/* }}} */
53
54		static inline void php_json_pretty_print_indent(smart_str buf, int options, const php_json_encoder encoder) /* {{{ */
55	1.09k	{
56	1.09k	if (options & PHP_JSON_PRETTY_PRINT) {
57	0	for (int i = 0; i < encoder->depth; ++i) {
58	0	smart_str_appendl(buf, " ", 4);
59	0	}
60	0	}
61	1.09k	}
62		/* }}} */
63
64		/* }}} */
65
66		static
67		#if defined(_MSC_VER) && defined(_M_ARM64)
68		// MSVC bug: https://developercommunity.visualstudio.com/t/corrupt-optimization-on-arm64-with-Ox-/10102551
69		zend_never_inline
70		#else
71		inline
72		#endif
73		bool php_json_is_valid_double(double d) /* {{{ */
74	86	{
75	86	return !zend_isinf(d) && !zend_isnan(d);
76	86	}
77		/* }}} */
78
79		static inline void php_json_encode_double(smart_str buf, double d, int options) / {{{ */
80	86	{
81	86	size_t len;
82	86	char num[ZEND_DOUBLE_MAX_LENGTH];
83
84	86	zend_gcvt(d, (int)PG(serialize_precision), '.', 'e', num);
85	86	len = strlen(num);
86	86	if (options & PHP_JSON_PRESERVE_ZERO_FRACTION && strchr(num, '.') == NULL && len < ZEND_DOUBLE_MAX_LENGTH - 2) {
87	45	num[len++] = '.';
88	45	num[len++] = '0';
89	45	num[len] = '\0';
90	45	}
91	86	smart_str_appendl(buf, num, len);
92	86	}
93		/* }}} */
94
95		#define PHP_JSON_HASH_PROTECT_RECURSION(_tmp_ht) \
96	240	do { \
97	240	if (_tmp_ht) { \
98	235	GC_TRY_PROTECT_RECURSION(_tmp_ht); \
99	235	} \
100	240	} while (0)
101
102		#define PHP_JSON_HASH_UNPROTECT_RECURSION(_tmp_ht) \
103	240	do { \
104	240	if (_tmp_ht) { \
105	235	GC_TRY_UNPROTECT_RECURSION(_tmp_ht); \
106	235	} \
107	240	} while (0)
108
109		static zend_result php_json_encode_array(smart_str buf, zval val, int options, php_json_encoder encoder) / {{{ */
110	240	{
111	240	bool encode_as_object = options & PHP_JSON_FORCE_OBJECT;
112	240	bool need_comma = false;
113	240	HashTable myht, prop_ht;
114	240	zend_refcounted *recursion_rc;
115
116	240	if (php_json_check_stack_limit()) {
117	0	encoder->error_code = PHP_JSON_ERROR_DEPTH;
118	0	if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
119	0	smart_str_appendl(buf, "null", 4);
120	0	}
121	0	return FAILURE;
122	0	}
123
124	240	if (Z_TYPE_P(val) == IS_ARRAY) {
125	48	myht = Z_ARRVAL_P(val);
126	48	recursion_rc = (zend_refcounted *)myht;
127	48	prop_ht = NULL;
128	48	encode_as_object = encode_as_object \|\| !zend_array_is_list(myht);
129	192	} else if (Z_OBJ_P(val)->properties == NULL
130	90	&& Z_OBJ_HT_P(val)->get_properties_for == NULL
131	85	&& Z_OBJ_HT_P(val)->get_properties == zend_std_get_properties
132	85	&& Z_OBJ_P(val)->ce->num_hooked_props == 0
133	28	&& !zend_object_is_lazy(Z_OBJ_P(val))) {
134		/* Optimized version without rebuilding properties HashTable */
135	0	zend_object *obj = Z_OBJ_P(val);
136	0	const zend_class_entry *ce = obj->ce;
137
138	0	if (GC_IS_RECURSIVE(obj)) {
139	0	encoder->error_code = PHP_JSON_ERROR_RECURSION;
140	0	smart_str_appendl(buf, "null", 4);
141	0	return FAILURE;
142	0	}
143
144	0	PHP_JSON_HASH_PROTECT_RECURSION(obj);
145
146	0	smart_str_appendc(buf, '{');
147
148	0	++encoder->depth;
149
150	0	for (int i = 0; i < ce->default_properties_count; i++) {
151	0	zend_property_info *prop_info = ce->properties_info_table[i];
152	0	if (!prop_info) {
153	0	continue;
154	0	}
155	0	if (ZSTR_VAL(prop_info->name)[0] == '\0' && ZSTR_LEN(prop_info->name) > 0) {
156		/* Skip protected and private members. */
157	0	continue;
158	0	}
159	0	zval *prop = OBJ_PROP(obj, prop_info->offset);
160	0	if (Z_TYPE_P(prop) == IS_UNDEF) {
161	0	continue;
162	0	}
163
164	0	if (need_comma) {
165	0	smart_str_appendc(buf, ',');
166	0	} else {
167	0	need_comma = true;
168	0	}
169
170	0	php_json_pretty_print_char(buf, options, '\n');
171	0	php_json_pretty_print_indent(buf, options, encoder);
172
173	0	if (php_json_escape_string(buf, ZSTR_VAL(prop_info->name), ZSTR_LEN(prop_info->name),
174	0	options & ~PHP_JSON_NUMERIC_CHECK, encoder) == FAILURE &&
175	0	(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) &&
176	0	buf->s) {
177	0	ZSTR_LEN(buf->s) -= 4;
178	0	smart_str_appendl(buf, "\"\"", 2);
179	0	}
180
181	0	smart_str_appendc(buf, ':');
182	0	php_json_pretty_print_char(buf, options, ' ');
183
184	0	if (php_json_encode_zval(buf, prop, options, encoder) == FAILURE &&
185	0	!(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
186	0	PHP_JSON_HASH_UNPROTECT_RECURSION(obj);
187	0	return FAILURE;
188	0	}
189	0	}
190
191	0	PHP_JSON_HASH_UNPROTECT_RECURSION(obj);
192	0	if (encoder->depth > encoder->max_depth) {
193	0	encoder->error_code = PHP_JSON_ERROR_DEPTH;
194	0	if (!(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
195	0	return FAILURE;
196	0	}
197	0	}
198	0	--encoder->depth;
199
200	0	if (need_comma) {
201	0	php_json_pretty_print_char(buf, options, '\n');
202	0	php_json_pretty_print_indent(buf, options, encoder);
203	0	}
204	0	smart_str_appendc(buf, '}');
205	0	return SUCCESS;
206	192	} else {
207	192	zend_object *obj = Z_OBJ_P(val);
208	192	prop_ht = myht = zend_get_properties_for(val, ZEND_PROP_PURPOSE_JSON);
209	192	if (obj->ce->num_hooked_props == 0) {
210	43	recursion_rc = (zend_refcounted *)prop_ht;
211	149	} else {
212		/* Protecting the object itself is fine here because myht is temporary and can't be
213		* referenced from a different place in the object graph. */
214	149	recursion_rc = (zend_refcounted *)obj;
215	149	}
216	192	encode_as_object = true;
217	192	}
218
219	240	if (recursion_rc && GC_IS_RECURSIVE(recursion_rc)) {
220	0	encoder->error_code = PHP_JSON_ERROR_RECURSION;
221	0	smart_str_appendl(buf, "null", 4);
222	0	zend_release_properties(prop_ht);
223	0	return FAILURE;
224	0	}
225
226	240	PHP_JSON_HASH_PROTECT_RECURSION(recursion_rc);
227
228	240	if (!encode_as_object) {
229	43	smart_str_appendc(buf, '[');
230	197	} else {
231	197	smart_str_appendc(buf, '{');
232	197	}
233
234	240	++encoder->depth;
235
236	240	uint32_t i = myht ? zend_hash_num_elements(myht) : 0;
237
238	240	if (i > 0) {
239	187	zend_string *key;
240	187	zval *data;
241	187	zend_ulong index;
242
243	2.43k	ZEND_HASH_FOREACH_KEY_VAL_IND(myht, index, key, data) {
244	2.43k	zval tmp;
245	2.43k	ZVAL_UNDEF(&tmp);
246
247	2.43k	if (!encode_as_object) {
248	570	ZEND_ASSERT(Z_TYPE_P(data) != IS_PTR);
249
250	570	if (need_comma) {
251	540	smart_str_appendc(buf, ',');
252	540	} else {
253	30	need_comma = true;
254	30	}
255
256	570	php_json_pretty_print_char(buf, options, '\n');
257	570	php_json_pretty_print_indent(buf, options, encoder);
258	570	} else {
259	550	if (key) {
260	550	if (ZSTR_VAL(key)[0] == '\0' && ZSTR_LEN(key) > 0 && Z_TYPE_P(val) == IS_OBJECT) {
261		/* Skip protected and private members. */
262	151	continue;
263	151	}
264
265		/* data is IS_PTR for properties with hooks. */
266	399	if (UNEXPECTED(Z_TYPE_P(data) == IS_PTR)) {
267	275	zend_property_info *prop_info = Z_PTR_P(data);
268	275	if ((prop_info->flags & ZEND_ACC_VIRTUAL) && !prop_info->hooks[ZEND_PROPERTY_HOOK_GET]) {
269	55	continue;
270	55	}
271	220	data = zend_read_property_ex(prop_info->ce, Z_OBJ_P(val), prop_info->name, /* silent */ true, &tmp);
272	220	if (EG(exception)) {
273	0	PHP_JSON_HASH_UNPROTECT_RECURSION(recursion_rc);
274	0	zend_release_properties(prop_ht);
275	0	return FAILURE;
276	0	}
277	220	}
278
279	344	if (need_comma) {
280	192	smart_str_appendc(buf, ',');
281	192	} else {
282	152	need_comma = true;
283	152	}
284
285	344	php_json_pretty_print_char(buf, options, '\n');
286	344	php_json_pretty_print_indent(buf, options, encoder);
287
288	344	if (php_json_escape_string(buf, ZSTR_VAL(key), ZSTR_LEN(key),
289	344	options & ~PHP_JSON_NUMERIC_CHECK, encoder) == FAILURE &&
290	0	(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) &&
291	0	buf->s) {
292	0	ZSTR_LEN(buf->s) -= 4;
293	0	smart_str_appendl(buf, "\"\"", 2);
294	0	}
295	344	} else {
296	0	if (need_comma) {
297	0	smart_str_appendc(buf, ',');
298	0	} else {
299	0	need_comma = true;
300	0	}
301
302	0	php_json_pretty_print_char(buf, options, '\n');
303	0	php_json_pretty_print_indent(buf, options, encoder);
304
305	0	smart_str_appendc(buf, '"');
306	0	smart_str_append_long(buf, (zend_long) index);
307	0	smart_str_appendc(buf, '"');
308	0	}
309
310	344	smart_str_appendc(buf, ':');
311	344	php_json_pretty_print_char(buf, options, ' ');
312	344	}
313
314	914	if (php_json_encode_zval(buf, data, options, encoder) == FAILURE &&
315	0	!(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
316	0	PHP_JSON_HASH_UNPROTECT_RECURSION(recursion_rc);
317	0	zend_release_properties(prop_ht);
318	0	zval_ptr_dtor(&tmp);
319	0	return FAILURE;
320	0	}
321	914	zval_ptr_dtor(&tmp);
322	914	} ZEND_HASH_FOREACH_END();
323	187	}
324
325	240	PHP_JSON_HASH_UNPROTECT_RECURSION(recursion_rc);
326
327	240	if (encoder->depth > encoder->max_depth) {
328	0	encoder->error_code = PHP_JSON_ERROR_DEPTH;
329	0	if (!(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
330	0	zend_release_properties(prop_ht);
331	0	return FAILURE;
332	0	}
333	0	}
334	240	--encoder->depth;
335
336		/* Only keep closing bracket on same line for empty arrays/objects */
337	240	if (need_comma) {
338	182	php_json_pretty_print_char(buf, options, '\n');
339	182	php_json_pretty_print_indent(buf, options, encoder);
340	182	}
341
342	240	if (!encode_as_object) {
343	43	smart_str_appendc(buf, ']');
344	197	} else {
345	197	smart_str_appendc(buf, '}');
346	197	}
347
348	240	zend_release_properties(prop_ht);
349	240	return SUCCESS;
350	240	}
351		/* }}} */
352
353		zend_result php_json_escape_string(
354		smart_str buf, const char s, size_t len,
355		int options, php_json_encoder encoder) / {{{ */
356	1.16k	{
357	1.16k	size_t pos, checkpoint;
358	1.16k	char *dst;
359
360	1.16k	if (len == 0) {
361	28	smart_str_appendl(buf, "\"\"", 2);
362	28	return SUCCESS;
363	28	}
364
365	1.13k	if (options & PHP_JSON_NUMERIC_CHECK) {
366	2	double d;
367	2	int type;
368	2	zend_long p;
369
370	2	if ((type = is_numeric_string(s, len, &p, &d, 0)) != 0) {
371	0	if (type == IS_LONG) {
372	0	smart_str_append_long(buf, p);
373	0	return SUCCESS;
374	0	} else if (type == IS_DOUBLE && php_json_is_valid_double(d)) {
375	0	php_json_encode_double(buf, d, options);
376	0	return SUCCESS;
377	0	}
378	0	}
379
380	2	}
381	1.13k	checkpoint = buf->s ? ZSTR_LEN(buf->s) : 0;
382
383		/* pre-allocate for string length plus 2 quotes */
384	1.13k	smart_str_alloc(buf, len+2, 0);
385	1.13k	smart_str_appendc(buf, '"');
386
387	1.13k	pos = 0;
388
389	83.8k	do {
390	83.8k	static const uint32_t charmap[8] = {
391	83.8k	0xffffffff, 0x500080c4, 0x10000000, 0x00000000,
392	83.8k	0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff};
393
394	83.8k	unsigned int us = (unsigned char)s[pos];
395	83.8k	if (EXPECTED(!ZEND_BIT_TEST(charmap, us))) {
396	41.0k	pos++;
397	41.0k	len--;
398	41.0k	if (len == 0) {
399	1.09k	smart_str_appendl(buf, s, pos);
400	1.09k	break;
401	1.09k	}
402	42.8k	} else {
403	42.8k	if (pos) {
404	3.57k	smart_str_appendl(buf, s, pos);
405	3.57k	s += pos;
406	3.57k	pos = 0;
407	3.57k	}
408	42.8k	us = (unsigned char)s[0];
409	42.8k	if (UNEXPECTED(us >= 0x80)) {
410	16.4k	zend_result status;
411	16.4k	us = php_next_utf8_char((unsigned char *)s, len, &pos, &status);
412
413		/* check whether UTF8 character is correct */
414	16.4k	if (UNEXPECTED(status != SUCCESS)) {
415	16.3k	if (options & PHP_JSON_INVALID_UTF8_IGNORE) {
416		/* ignore invalid UTF8 character */
417	16.2k	} else if (options & PHP_JSON_INVALID_UTF8_SUBSTITUTE) {
418		/* Use Unicode character 'REPLACEMENT CHARACTER' (U+FFFD) */
419	0	if (options & PHP_JSON_UNESCAPED_UNICODE) {
420	0	smart_str_appendl(buf, "\xef\xbf\xbd", 3);
421	0	} else {
422	0	smart_str_appendl(buf, "\\ufffd", 6);
423	0	}
424	34	} else {
425	34	ZSTR_LEN(buf->s) = checkpoint;
426	34	encoder->error_code = PHP_JSON_ERROR_UTF8;
427	34	if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
428	0	smart_str_appendl(buf, "null", 4);
429	0	}
430	34	return FAILURE;
431	34	}
432
433		/* Escape U+2028/U+2029 line terminators, UNLESS both
434		JSON_UNESCAPED_UNICODE and
435		JSON_UNESCAPED_LINE_TERMINATORS were provided */
436	16.3k	} else if ((options & PHP_JSON_UNESCAPED_UNICODE)
437	145	&& ((options & PHP_JSON_UNESCAPED_LINE_TERMINATORS)
438	145	\|\| us < 0x2028 \|\| us > 0x2029)) {
439	145	smart_str_appendl(buf, s, pos);
440	145	} else {
441		/* From http://en.wikipedia.org/wiki/UTF16 */
442	0	if (us >= 0x10000) {
443	0	unsigned int next_us;
444
445	0	us -= 0x10000;
446	0	next_us = (unsigned short)((us & 0x3ff) \| 0xdc00);
447	0	us = (unsigned short)((us >> 10) \| 0xd800);
448	0	dst = smart_str_extend(buf, 6);
449	0	dst[0] = '\\';
450	0	dst[1] = 'u';
451	0	dst[2] = digits[(us >> 12) & 0xf];
452	0	dst[3] = digits[(us >> 8) & 0xf];
453	0	dst[4] = digits[(us >> 4) & 0xf];
454	0	dst[5] = digits[us & 0xf];
455	0	us = next_us;
456	0	}
457	0	dst = smart_str_extend(buf, 6);
458	0	dst[0] = '\\';
459	0	dst[1] = 'u';
460	0	dst[2] = digits[(us >> 12) & 0xf];
461	0	dst[3] = digits[(us >> 8) & 0xf];
462	0	dst[4] = digits[(us >> 4) & 0xf];
463	0	dst[5] = digits[us & 0xf];
464	0	}
465	16.4k	s += pos;
466	16.4k	len -= pos;
467	16.4k	pos = 0;
468	26.3k	} else {
469	26.3k	s++;
470	26.3k	switch (us) {
471	420	case '"':
472	420	if (options & PHP_JSON_HEX_QUOT) {
473	2	smart_str_appendl(buf, "\\u0022", 6);
474	418	} else {
475	418	smart_str_appendl(buf, "\\\"", 2);
476	418	}
477	420	break;
478
479	198	case '\\':
480	198	smart_str_appendl(buf, "\\\\", 2);
481	198	break;
482
483	85	case '/':
484	85	if (options & PHP_JSON_UNESCAPED_SLASHES) {
485	85	smart_str_appendc(buf, '/');
486	85	} else {
487	0	smart_str_appendl(buf, "\\/", 2);
488	0	}
489	85	break;
490
491	58	case '\b':
492	58	smart_str_appendl(buf, "\\b", 2);
493	58	break;
494
495	73	case '\f':
496	73	smart_str_appendl(buf, "\\f", 2);
497	73	break;
498
499	386	case '\n':
500	386	smart_str_appendl(buf, "\\n", 2);
501	386	break;
502
503	2.84k	case '\r':
504	2.84k	smart_str_appendl(buf, "\\r", 2);
505	2.84k	break;
506
507	65	case '\t':
508	65	smart_str_appendl(buf, "\\t", 2);
509	65	break;
510
511	11.3k	case '<':
512	11.3k	if (options & PHP_JSON_HEX_TAG) {
513	5.60k	smart_str_appendl(buf, "\\u003C", 6);
514	5.71k	} else {
515	5.71k	smart_str_appendc(buf, '<');
516	5.71k	}
517	11.3k	break;
518
519	139	case '>':
520	139	if (options & PHP_JSON_HEX_TAG) {
521	77	smart_str_appendl(buf, "\\u003E", 6);
522	77	} else {
523	62	smart_str_appendc(buf, '>');
524	62	}
525	139	break;
526
527	38	case '&':
528	38	if (options & PHP_JSON_HEX_AMP) {
529	18	smart_str_appendl(buf, "\\u0026", 6);
530	20	} else {
531	20	smart_str_appendc(buf, '&');
532	20	}
533	38	break;
534
535	0	case '\'':
536	0	if (options & PHP_JSON_HEX_APOS) {
537	0	smart_str_appendl(buf, "\\u0027", 6);
538	0	} else {
539	0	smart_str_appendc(buf, '\'');
540	0	}
541	0	break;
542
543	10.7k	default:
544	10.7k	ZEND_ASSERT(us < ' ');
545	10.7k	dst = smart_str_extend(buf, 6);
546	10.7k	dst[0] = '\\';
547	10.7k	dst[1] = 'u';
548	10.7k	dst[2] = '0';
549	10.7k	dst[3] = '0';
550	10.7k	dst[4] = digits[(us >> 4) & 0xf];
551	10.7k	dst[5] = digits[us & 0xf];
552	10.7k	break;
553	26.3k	}
554	26.3k	len--;
555	26.3k	}
556	42.8k	}
557	83.8k	} while (len);
558
559	1.09k	smart_str_appendc(buf, '"');
560
561	1.09k	return SUCCESS;
562	1.13k	}
563		/* }}} */
564
565		static zend_result php_json_encode_serializable_object(smart_str buf, zend_object obj, int options, php_json_encoder *encoder)
566	18	{
567	18	zend_class_entry *ce = obj->ce;
568	18	uint32_t *guard = zend_get_recursion_guard(obj);
569	18	zval retval;
570	18	zend_result return_code;
571
572	18	ZEND_ASSERT(guard != NULL);
573
574	18	if (ZEND_GUARD_IS_RECURSIVE(guard, JSON)) {
575	0	encoder->error_code = PHP_JSON_ERROR_RECURSION;
576	0	if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
577	0	smart_str_appendl(buf, "null", 4);
578	0	}
579	0	return FAILURE;
580	0	}
581
582	18	ZEND_GUARD_PROTECT_RECURSION(guard, JSON);
583
584	18	zend_function *json_serialize_method = zend_hash_str_find_ptr(&ce->function_table, ZEND_STRL("jsonserialize"));
585	18	ZEND_ASSERT(json_serialize_method != NULL && "This should be guaranteed prior to calling this function");
586	18	zend_call_known_function(json_serialize_method, obj, ce, &retval, 0, NULL, NULL);
587		/* An exception has occurred */
588	18	if (Z_TYPE(retval) == IS_UNDEF) {
589	3	if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
590	0	smart_str_appendl(buf, "null", 4);
591	0	}
592	3	ZEND_GUARD_UNPROTECT_RECURSION(guard, JSON);
593	3	return FAILURE;
594	3	}
595
596	15	if (Z_TYPE(retval) == IS_OBJECT && Z_OBJ(retval) == obj) {
597		/* Handle the case where jsonSerialize does: return $this; by going straight to encode array */
598	0	ZEND_GUARD_UNPROTECT_RECURSION(guard, JSON);
599	0	return_code = php_json_encode_array(buf, &retval, options, encoder);
600	15	} else {
601		/* All other types, encode as normal */
602	15	return_code = php_json_encode_zval(buf, &retval, options, encoder);
603	15	ZEND_GUARD_UNPROTECT_RECURSION(guard, JSON);
604	15	}
605
606	15	zval_ptr_dtor(&retval);
607
608	15	return return_code;
609	18	}
610
611		static zend_result php_json_encode_serializable_enum(smart_str buf, zval val, int options, php_json_encoder *encoder)
612	243	{
613	243	const zend_class_entry *ce = Z_OBJCE_P(val);
614	243	if (ce->enum_backing_type == IS_UNDEF) {
615	89	encoder->error_code = PHP_JSON_ERROR_NON_BACKED_ENUM;
616	89	smart_str_appendc(buf, '0');
617	89	return FAILURE;
618	89	}
619
620	154	zval *value_zv = zend_enum_fetch_case_value(Z_OBJ_P(val));
621	154	return php_json_encode_zval(buf, value_zv, options, encoder);
622	243	}
623
624		zend_result php_json_encode_zval(smart_str buf, zval val, int options, php_json_encoder encoder) / {{{ */
625	2.89k	{
626	2.92k	again:
627	2.92k	switch (Z_TYPE_P(val))
628	2.92k	{
629	65	case IS_NULL:
630	65	smart_str_appendl(buf, "null", 4);
631	65	break;
632
633	259	case IS_TRUE:
634	259	smart_str_appendl(buf, "true", 4);
635	259	break;
636	108	case IS_FALSE:
637	108	smart_str_appendl(buf, "false", 5);
638	108	break;
639
640	1.06k	case IS_LONG:
641	1.06k	smart_str_append_long(buf, Z_LVAL_P(val));
642	1.06k	break;
643
644	86	case IS_DOUBLE:
645	86	if (php_json_is_valid_double(Z_DVAL_P(val))) {
646	86	php_json_encode_double(buf, Z_DVAL_P(val), options);
647	86	} else {
648	0	encoder->error_code = PHP_JSON_ERROR_INF_OR_NAN;
649	0	smart_str_appendc(buf, '0');
650	0	}
651	86	break;
652
653	817	case IS_STRING:
654	817	return php_json_escape_string(buf, Z_STRVAL_P(val), Z_STRLEN_P(val), options, encoder);
655
656	453	case IS_OBJECT:
657	453	if (instanceof_function(Z_OBJCE_P(val), php_json_serializable_ce)) {
658	18	return php_json_encode_serializable_object(buf, Z_OBJ_P(val), options, encoder);
659	18	}
660	435	if (Z_OBJCE_P(val)->ce_flags & ZEND_ACC_ENUM) {
661	243	return php_json_encode_serializable_enum(buf, val, options, encoder);
662	243	}
663		/* fallthrough -- Non-serializable object */
664	192	ZEND_FALLTHROUGH;
665	240	case IS_ARRAY: {
666		/* Avoid modifications (and potential freeing) of the array through a reference when a
667		* jsonSerialize() method is invoked. */
668	240	zval zv;
669	240	zend_result res;
670	240	ZVAL_COPY(&zv, val);
671	240	res = php_json_encode_array(buf, &zv, options, encoder);
672	240	zval_ptr_dtor_nogc(&zv);
673	240	return res;
674	192	}
675
676	25	case IS_REFERENCE:
677	25	val = Z_REFVAL_P(val);
678	25	goto again;
679
680	0	default:
681	0	encoder->error_code = PHP_JSON_ERROR_UNSUPPORTED_TYPE;
682	0	if (options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR) {
683	0	smart_str_appendl(buf, "null", 4);
684	0	}
685	0	return FAILURE;
686	2.92k	}
687
688	1.57k	return SUCCESS;
689	2.92k	}
690		/* }}} */