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функция не описана

Services_JSON::_encode() public WP 1.0

Запрещена (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

{} Это 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(смешанный) (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() WP 5.5.3

<?php
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");
    }
}