Online PHP editor | output for fJYGM

@ 2013-07-08T19:44:43Z

<?php


if (!function_exists('json_encode')) {
    
    function json_encode($it) {
        if (!($assoc = is_object($it)) && !is_array($it)) {
            return _js_enc_value($it);
        }
        $i = 0;
        $it = (array)$it;
        if (!$assoc) {
            foreach ($it as $k => $v) {
                if ($k !== $i) {
                    $assoc = true;
                    break;
                }
                $i++;
            }
        }
        var_dump($assoc);
        $data = array();
        foreach ($it as $k => $v) {
            $v = _js_enc_value($v);
            if ($assoc) {
                $k = _js_enc_value((string)$k);
                $data[] = $k . ':' . $v;
            } else {
                $data[] = $v;
            }
        }
        if ($assoc) {
            $bl = '{';
            $br = '}';
        } else {
            $bl = '[';
            $br = ']';
        }
        return $bl . implode(',', $data) . $br;
    }

    function _js_enc_value($value) {
        var_dump($value);
        switch (true) {
            case is_array($value):
            case is_object($value):
                return json_encode($value);
            case $value === null:
            case is_resource($value):
                return 'null';
            case is_bool($value): 
                return $value ? 'true' : 'false';
            case is_string($value):
                return '"' . _js_uc_esc($value) . '"';
            default:
                return $value;   
        }
    }
    
    function _js_uc_esc($value) {
        $pattern = "@[\x08-\x10\x0c\x0d\\\\\"/]|([^\x08-\x10\x0c\x0d\x32-\x7f\\\\\"/])++@u";
        return preg_replace_callback($pattern, '_js_uc_esc_cb', $value);
    }
 
    function _js_uc_esc_cb($matches) {
        switch (true) {
            case isset($matches[1]):
                $char = mb_convert_encoding($matches[0], 'UTF-16', 'UTF-8');
                $str = '';
                $len = strlen($char);
                for ($i = 0; $i < $len; $i += 2) {
                    $str .= sprintf('\\u%02x%02x',
                        ord($char[$i]),
                        ord($char[$i + 1])
                    );
                }
                return $str;
            default:
            return addcslashes($matches[0], "\x08\x09\x10\x0c\x0d\\\"/");
        }
    }
 
}

$var = array(
    array(
        'text',
        1,
        1.1,
        true,
        false,
        null,
        array(),
        new stdClass,
    ),
    array(
        '&\'/"' => "\r\n\t",
    ),
    array(
        '0' => 'hoge',
        '1' => 'foo',
    ),
    (object)array(
        '0' => 'hoge',
        '1' => 'foo',
    ),
    array(
        '0' => 'hoge',
        '2' => 'foo',
    ),
    (object)array(
        '0' => 'hoge',
        '2' => 'foo',
    ),
);

var_dump(@json_encode($var));

Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: string(142) "[["text",1,1.1,true,false,null,[],{}],{"&'\/\"":"\r\n\t"},["hoge","foo"],{"0":"hoge","1":"foo"},{"0":"hoge","2":"foo"},{"0":"hoge","2":"foo"}]"
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6: bool(false) array(8) { [0]=> string(4) "text" [1]=> int(1) [2]=> float(1.1) [3]=> bool(true) [4]=> bool(false) [5]=> NULL [6]=> array(0) { } [7]=> object(stdClass)#1 (0) { } } bool(false) string(4) "text" int(1) float(1.1) bool(true) bool(false) NULL array(0) { } bool(false) object(stdClass)#1 (0) { } bool(true) array(1) { ["&'/""]=> string(3) " " } bool(true) string(3) " " string(4) "&'/"" array(2) { [0]=> string(4) "hoge" [1]=> string(3) "foo" } bool(false) string(4) "hoge" string(3) "foo" object(stdClass)#2 (2) { [0]=> string(4) "hoge" [1]=> string(3) "foo" } bool(true) string(4) "hoge" string(1) "0" string(3) "foo" string(1) "1" array(2) { [0]=> string(4) "hoge" [2]=> string(3) "foo" } bool(true) string(4) "hoge" string(1) "0" string(3) "foo" string(1) "2" object(stdClass)#3 (2) { [0]=> string(4) "hoge" [2]=> string(3) "foo" } bool(true) string(4) "hoge" string(1) "0" string(3) "foo" string(1) "2" string(171) "[["text",1,1.1,true,false,null,[],{}],{"\u0026\u0027\/\"":"\r \t"},["hoge","foo"],{"\u0030":"hoge","\u0031":"foo"},{"\u0030":"hoge","2":"foo"},{"\u0030":"hoge","2":"foo"}]"
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9: bool(false) array(8) { [0]=> string(4) "text" [1]=> int(1) [2]=> float(1.1) [3]=> bool(true) [4]=> bool(false) [5]=> NULL [6]=> array(0) { } [7]=> object(stdClass)(0) { } } bool(false) string(4) "text" int(1) float(1.1) bool(true) bool(false) NULL array(0) { } bool(false) object(stdClass)(0) { } bool(true) array(1) { ["&'/""]=> string(3) " " } bool(true) string(3) " " string(4) "&'/"" array(2) { [0]=> string(4) "hoge" [1]=> string(3) "foo" } bool(false) string(4) "hoge" string(3) "foo" object(stdClass)(2) { [0]=> string(4) "hoge" [1]=> string(3) "foo" } bool(true) string(4) "hoge" string(1) "0" string(3) "foo" string(1) "1" array(2) { [0]=> string(4) "hoge" [2]=> string(3) "foo" } bool(true) string(4) "hoge" string(1) "0" string(3) "foo" string(1) "2" object(stdClass)(2) { [0]=> string(4) "hoge" [2]=> string(3) "foo" } bool(true) string(4) "hoge" string(1) "0" string(3) "foo" string(1) "2" string(171) "[["text",1,1.1,true,false,null,[],{}],{"\u0026\u0027\/\"":"\r \t"},["hoge","foo"],{"\u0030":"hoge","\u0031":"foo"},{"\u0030":"hoge","2":"foo"},{"\u0030":"hoge","2":"foo"}]"

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