Services_JSON::_encode() │ public │ WP 1.0
Устарела с версии 5.3.0. Больше не поддерживается и может быть удалена. Используйте
PHP native JSON extension.PRIVATE CODE that does the work of encodes an arbitrary variable into JSON format
Метод класса: Services_JSON{}
Хуков нет.
Возвращает
Разное. JSON string representation of input var or an error if a problem occurs
Использование
$Services_JSON = new Services_JSON(); $Services_JSON->_encode( $var );
- $var(разное) (обязательный)
- any number, boolean, string, array, or object to be encoded. see argument 1 to Services_JSON() above for array-parsing behavior. if var is a string, note that encode() always expects it to be in ASCII or UTF-8 format!
Список изменений
| Устарела с 5.3.0 | Use the PHP native JSON extension instead. |
Код Services_JSON::_encode() Services JSON:: encode WP 6.7.1
function _encode($var)
{
_deprecated_function( __METHOD__, '5.3.0', 'The PHP native JSON extension' );
switch (gettype($var)) {
case 'boolean':
return $var ? 'true' : 'false';
case 'NULL':
return 'null';
case 'integer':
return (int) $var;
case 'double':
case 'float':
return (float) $var;
case 'string':
// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
$ascii = '';
$strlen_var = $this->strlen8($var);
/*
* Iterate over every character in the string,
* escaping with a slash or encoding to UTF-8 where necessary
*/
for ($c = 0; $c < $strlen_var; ++$c) {
$ord_var_c = ord($var[$c]);
switch (true) {
case $ord_var_c == 0x08:
$ascii .= '\b';
break;
case $ord_var_c == 0x09:
$ascii .= '\t';
break;
case $ord_var_c == 0x0A:
$ascii .= '\n';
break;
case $ord_var_c == 0x0C:
$ascii .= '\f';
break;
case $ord_var_c == 0x0D:
$ascii .= '\r';
break;
case $ord_var_c == 0x22:
case $ord_var_c == 0x2F:
case $ord_var_c == 0x5C:
// double quote, slash, slosh
$ascii .= '\\'.$var[$c];
break;
case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
// characters U-00000000 - U-0000007F (same as ASCII)
$ascii .= $var[$c];
break;
case (($ord_var_c & 0xE0) == 0xC0):
// characters U-00000080 - U-000007FF, mask 110XXXXX
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
if ($c+1 >= $strlen_var) {
$c += 1;
$ascii .= '?';
break;
}
$char = pack('C*', $ord_var_c, ord($var[$c + 1]));
$c += 1;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
case (($ord_var_c & 0xF0) == 0xE0):
if ($c+2 >= $strlen_var) {
$c += 2;
$ascii .= '?';
break;
}
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$char = pack('C*', $ord_var_c,
@ord($var[$c + 1]),
@ord($var[$c + 2]));
$c += 2;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
case (($ord_var_c & 0xF8) == 0xF0):
if ($c+3 >= $strlen_var) {
$c += 3;
$ascii .= '?';
break;
}
// characters U-00010000 - U-001FFFFF, mask 11110XXX
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$char = pack('C*', $ord_var_c,
ord($var[$c + 1]),
ord($var[$c + 2]),
ord($var[$c + 3]));
$c += 3;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
case (($ord_var_c & 0xFC) == 0xF8):
// characters U-00200000 - U-03FFFFFF, mask 111110XX
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
if ($c+4 >= $strlen_var) {
$c += 4;
$ascii .= '?';
break;
}
$char = pack('C*', $ord_var_c,
ord($var[$c + 1]),
ord($var[$c + 2]),
ord($var[$c + 3]),
ord($var[$c + 4]));
$c += 4;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
case (($ord_var_c & 0xFE) == 0xFC):
if ($c+5 >= $strlen_var) {
$c += 5;
$ascii .= '?';
break;
}
// characters U-04000000 - U-7FFFFFFF, mask 1111110X
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$char = pack('C*', $ord_var_c,
ord($var[$c + 1]),
ord($var[$c + 2]),
ord($var[$c + 3]),
ord($var[$c + 4]),
ord($var[$c + 5]));
$c += 5;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;
}
}
return '"'.$ascii.'"';
case 'array':
/*
* As per JSON spec if any array key is not an integer
* we must treat the whole array as an object. We
* also try to catch a sparsely populated associative
* array with numeric keys here because some JS engines
* will create an array with empty indexes up to
* max_index which can cause memory issues and because
* the keys, which may be relevant, will be remapped
* otherwise.
*
* As per the ECMA and JSON specification an object may
* have any string as a property. Unfortunately due to
* a hole in the ECMA specification if the key is a
* ECMA reserved word or starts with a digit the
* parameter is only accessible using ECMAScript's
* bracket notation.
*/
// treat as a JSON object
if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
$properties = array_map(array($this, 'name_value'),
array_keys($var),
array_values($var));
foreach($properties as $property) {
if(Services_JSON::isError($property)) {
return $property;
}
}
return '{' . join(',', $properties) . '}';
}
// treat it like a regular array
$elements = array_map(array($this, '_encode'), $var);
foreach($elements as $element) {
if(Services_JSON::isError($element)) {
return $element;
}
}
return '[' . join(',', $elements) . ']';
case 'object':
// support toJSON methods.
if (($this->use & SERVICES_JSON_USE_TO_JSON) && method_exists($var, 'toJSON')) {
// this may end up allowing unlimited recursion
// so we check the return value to make sure it's not got the same method.
$recode = $var->toJSON();
if (method_exists($recode, 'toJSON')) {
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
? 'null'
: new Services_JSON_Error(get_class($var).
" toJSON returned an object with a toJSON method.");
}
return $this->_encode( $recode );
}
$vars = get_object_vars($var);
$properties = array_map(array($this, 'name_value'),
array_keys($vars),
array_values($vars));
foreach($properties as $property) {
if(Services_JSON::isError($property)) {
return $property;
}
}
return '{' . join(',', $properties) . '}';
default:
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
? 'null'
: new Services_JSON_Error(gettype($var)." can not be encoded as JSON string");
}
}