3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (!function_exists('json_encode')) { function json_encode($it) { if (!is_array($it) && !is_object($it)) { return _js_enc_value($it); } $assoc = false; $i = 0; foreach ($it as $k => $v) { if ($k !== $i) { $assoc = true; break; } $i++; } if (!isset($k)) { $assoc = true; } $data = array(); foreach ($it as $k => $v) { $k = '"'. addcslashes($k, '"\\') . '"'; $v = _js_enc_value($v); $data[] = $assoc ? $k . ':' . $v : $v; } if ($assoc) { $spl = '{'; $spr = '}'; } else { $spl = '['; $spr = ']'; } return $spl . implode(',', $data) . $spr; } function _js_enc_value($value) { switch (true) { case is_array($value): case is_object($value): return json_encode($value); case is_bool($value): return $value ? 'true' : 'false'; case $value === null: case is_resource($value): return 'null'; case is_string($value): return '"' . _js_uc_esc($value) . '"'; default: return $value; } } function _js_uc_esc($value) { $pattern = "/\r|(\n)|((?:[^\x09\x0A\x0D\x20-\x7E]{3})+)/"; return preg_replace_callback($pattern, '_js_uc_esc_cb', $value); } function _js_uc_esc_cb($matches) { switch (true) { case isset($matches[2]): $char = mb_convert_encoding($matches[2], '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 $str; case isset($matches[1]): return '\\n'; default: return '\\r'; } } } $var = array( 0 => array('text', 1, 1.1, true, false, null, new stdClass, (object)array(0 => 1)), 2 => array('a' => 'hoge', 'b' => 'foo'), ); $f = json_encode($var); var_dump(json_decode($f));
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
object(stdClass)#5 (2) { ["0"]=> array(8) { [0]=> string(4) "text" [1]=> int(1) [2]=> float(1.1) [3]=> bool(true) [4]=> bool(false) [5]=> NULL [6]=> object(stdClass)#3 (0) { } [7]=> object(stdClass)#4 (1) { ["0"]=> int(1) } } ["2"]=> object(stdClass)#6 (2) { ["a"]=> string(4) "hoge" ["b"]=> string(3) "foo" } }
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
object(stdClass)#3 (2) { ["0"]=> array(8) { [0]=> string(4) "text" [1]=> int(1) [2]=> float(1.1) [3]=> bool(true) [4]=> bool(false) [5]=> NULL [6]=> object(stdClass)#4 (0) { } [7]=> object(stdClass)#5 (1) { ["0"]=> int(1) } } ["2"]=> object(stdClass)#6 (2) { ["a"]=> string(4) "hoge" ["b"]=> string(3) "foo" } }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/m8Xb3 on line 84
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_decode() in /in/m8Xb3 on line 84
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/m8Xb3 on line 84
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_decode() in /in/m8Xb3 on line 84

preferences:
231.6 ms | 401 KiB | 366 Q