3v4l.org

run code in 300+ PHP versions simultaneously
<?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)); */ var_dump(_js_enc_value('1'));

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0100.01018.32
8.3.50.0100.01022.09
8.3.40.0100.01018.79
8.3.30.0150.00019.17
8.3.20.0080.00020.25
8.3.10.0080.00021.98
8.3.00.0060.00622.52
8.2.180.0060.01016.63
8.2.170.0000.01522.96
8.2.160.0090.00620.35
8.2.150.0090.00624.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0060.00319.36
8.2.110.0030.00622.03
8.2.100.0000.01319.57
8.2.90.0000.00819.22
8.2.80.0030.00517.97
8.2.70.0030.00617.48
8.2.60.0090.00017.93
8.2.50.0060.00318.07
8.2.40.0040.00418.11
8.2.30.0000.00718.00
8.2.20.0050.00317.79
8.2.10.0080.00019.48
8.2.00.0000.00817.80
8.1.280.0060.00925.92
8.1.270.0080.00023.96
8.1.260.0030.00526.35
8.1.250.0000.00828.09
8.1.240.0090.00023.76
8.1.230.0040.00719.13
8.1.220.0000.00817.91
8.1.210.0050.00318.77
8.1.200.0030.00717.35
8.1.190.0040.00417.29
8.1.180.0040.00418.10
8.1.170.0060.00318.76
8.1.160.0030.00622.06
8.1.150.0000.00718.63
8.1.140.0040.00417.45
8.1.130.0030.00317.30
8.1.120.0040.00417.48
8.1.110.0020.00517.33
8.1.100.0030.00417.47
8.1.90.0040.00417.35
8.1.80.0000.00717.50
8.1.70.0000.00717.33
8.1.60.0090.00017.60
8.1.50.0060.00317.56
8.1.40.0000.00717.50
8.1.30.0040.00417.61
8.1.20.0030.00617.66
8.1.10.0040.00417.58
8.1.00.0040.00417.50
8.0.300.0060.00318.77
8.0.290.0040.00417.28
8.0.280.0040.00418.42
8.0.270.0040.00417.38
8.0.260.0040.00416.93
8.0.250.0000.00717.03
8.0.240.0030.00517.07
8.0.230.0000.00717.08
8.0.220.0070.00016.90
8.0.210.0040.00416.90
8.0.200.0030.00317.10
8.0.190.0080.00016.93
8.0.180.0030.00616.95
8.0.170.0040.00417.08
8.0.160.0000.00717.02
8.0.150.0000.00716.98
8.0.140.0000.00716.84
8.0.130.0050.00013.46
8.0.120.0030.00517.02
8.0.110.0080.00016.96
8.0.100.0040.00417.13
8.0.90.0050.00317.02
8.0.80.0060.00917.02
8.0.70.0000.00716.91
8.0.60.0020.00516.91
8.0.50.0070.00016.80
8.0.30.0100.01017.16
8.0.20.0130.00817.40
8.0.10.0000.00716.98
8.0.00.0090.01516.72
7.4.330.0000.00515.03
7.4.320.0040.00416.45
7.4.300.0030.00316.44
7.4.290.0000.00816.38
7.4.280.0000.00716.55
7.4.270.0030.00316.67
7.4.260.0000.00716.62
7.4.250.0020.00516.55
7.4.240.0050.00316.55
7.4.230.0070.00016.36
7.4.220.0090.01316.71
7.4.210.0070.00816.54
7.4.200.0000.00716.47
7.4.190.0000.00816.66
7.4.160.0090.01516.55
7.4.150.0080.00817.40
7.4.140.0080.01017.86
7.4.130.0060.01316.51
7.4.120.0110.00816.64
7.4.110.0040.01416.54
7.4.100.0160.00316.54
7.4.90.0030.01416.48
7.4.80.0130.00616.63
7.4.70.0120.00816.73
7.4.60.0140.01116.68
7.4.50.0090.00016.43
7.4.40.0050.00522.77
7.4.30.0100.00716.70
7.4.00.0060.01114.91
7.3.330.0030.00313.35
7.3.320.0030.00313.37
7.3.310.0000.00716.36
7.3.300.0020.00516.25
7.3.290.0040.01116.35
7.3.280.0050.01016.36
7.3.270.0070.01117.40
7.3.260.0100.01016.63
7.3.250.0090.00916.58
7.3.240.0040.01816.43
7.3.230.0060.01216.39
7.3.210.0140.00316.22
7.3.200.0060.01019.39
7.3.190.0100.01316.48
7.3.180.0160.00016.23
7.3.170.0100.00716.58
7.3.160.0120.00616.45
7.3.120.0080.00814.89
7.3.110.0040.01514.99
7.3.100.0110.00414.79
7.3.90.0060.00314.68
7.3.80.0080.00414.81
7.3.70.0070.00714.71
7.3.60.0030.01414.72
7.3.50.0040.00814.91
7.3.40.0000.01414.49
7.3.30.0080.00414.46
7.3.20.0100.00716.65
7.3.10.0060.00916.66
7.3.00.0100.00316.43
7.2.330.0100.00716.71
7.2.320.0060.02016.66
7.2.310.0090.01316.81
7.2.300.0110.00516.52
7.2.290.0130.00316.41
7.2.250.0090.00915.13
7.2.240.0060.01414.82
7.2.230.0070.00314.74
7.2.220.0000.01014.79
7.2.210.0090.00614.57
7.2.200.0100.00614.88
7.2.190.0070.01015.00
7.2.180.0060.00814.77
7.2.170.0060.00614.85
7.2.60.0120.00316.77
7.2.00.0040.01518.99
7.1.330.0110.00415.66
7.1.320.0030.00615.85
7.1.310.0070.00715.74
7.1.300.0000.01215.48
7.1.290.0090.00315.54
7.1.280.0070.00715.80
7.1.270.0030.01515.79
7.1.260.0060.01015.55
7.1.200.0040.00715.71
7.1.100.0100.01017.67
7.1.70.0000.01117.04
7.1.60.0000.02419.82
7.1.50.0140.02134.67
7.1.00.0070.08322.51
7.0.200.0060.00616.84
7.0.140.0070.06722.00
7.0.90.0400.04319.92
7.0.80.0370.04319.95
7.0.70.0100.04019.93
7.0.60.0370.05319.80
7.0.50.0200.06320.37
7.0.40.0070.04320.05
7.0.30.0070.04020.17
7.0.20.0070.04319.95
7.0.10.0030.04320.09
7.0.00.0030.04320.04
5.6.280.0070.06021.09
5.6.240.0000.05320.64
5.6.230.0030.04320.64
5.6.220.0030.03720.57
5.6.210.0130.03720.67
5.6.200.0070.04020.98
5.6.190.0030.04021.05
5.6.180.0000.06321.18
5.6.170.0030.04321.07
5.6.160.0000.04320.97
5.6.150.0030.04321.09
5.6.140.0000.04320.96
5.6.130.0030.04321.02
5.6.120.0070.05720.98
5.6.110.0100.03320.93
5.6.100.0070.04020.93
5.6.90.0030.04720.88
5.6.80.0070.07720.41
5.6.70.0000.05720.53
5.6.60.0070.04020.43
5.6.50.0070.06020.42
5.6.40.0000.06020.47
5.6.30.0200.06720.41
5.6.20.0200.07020.29
5.6.10.0100.07320.47
5.6.00.0100.03720.43
5.5.380.0170.06020.42
5.5.370.0070.04320.37
5.5.360.0000.04320.42
5.5.350.0030.08020.43
5.5.340.0000.08020.89
5.5.330.0030.03720.91
5.5.320.0070.04020.85
5.5.310.0070.03720.79
5.5.300.0070.03320.81
5.5.290.0100.03720.77
5.5.280.0070.04020.92
5.5.270.0030.04720.90
5.5.260.0000.04320.93
5.5.250.0030.06720.61
5.5.240.0000.04320.23
5.5.230.0000.04020.16
5.5.220.0100.03320.29
5.5.210.0000.04320.27
5.5.200.0030.08020.29
5.5.190.0100.07719.99
5.5.180.0070.08020.24
5.5.160.0100.06720.01
5.5.150.0100.07320.27
5.5.140.0100.07020.22
5.5.130.0070.07320.24
5.5.120.0130.04320.27
5.5.110.0070.05320.09
5.5.100.0130.07020.09
5.5.90.0170.07320.08
5.5.80.0200.04320.08
5.5.70.0000.08319.98
5.5.60.0100.07320.08
5.5.50.0030.08320.18
5.5.40.0030.05320.12
5.5.30.0030.08020.09
5.5.20.0000.08319.97
5.5.10.0100.04020.10
5.5.00.0070.05719.95
5.4.450.0000.04319.28
5.4.440.0070.06019.45
5.4.430.0070.03719.41
5.4.420.0030.05019.20
5.4.410.0030.04019.07
5.4.400.0030.03718.91
5.4.390.0000.04718.85
5.4.380.0070.03019.18
5.4.370.0070.03318.88
5.4.360.0070.04018.91
5.4.350.0200.06018.85
5.4.340.0100.05019.13
5.4.320.0230.05319.13
5.4.310.0130.07019.13
5.4.300.0000.07719.13
5.4.290.0100.05019.17
5.4.280.0070.07319.07
5.4.270.0070.07719.13
5.4.260.0070.06018.94
5.4.250.0030.08018.87
5.4.240.0170.06019.13
5.4.230.0100.07019.15
5.4.220.0100.08019.20
5.4.210.0130.04719.18
5.4.200.0070.04319.04
5.4.190.0100.07018.86
5.4.180.0130.07019.20
5.4.170.0070.07318.87
5.4.160.0030.08318.98
5.4.150.0000.08318.86
5.4.140.0070.04316.44
5.4.130.0030.04316.45
5.4.120.0070.04016.34
5.4.110.0070.07316.45
5.4.100.0100.06016.48
5.4.90.0030.07716.46
5.4.80.0030.04716.31
5.4.70.0070.03716.31
5.4.60.0070.07016.34
5.4.50.0070.07316.34
5.4.40.0000.07016.36
5.4.30.0070.06316.25
5.4.20.0100.06316.40
5.4.10.0100.07016.36
5.4.00.0000.07315.81
5.3.290.0130.06314.70
5.3.280.0030.04314.55
5.3.270.0100.07014.66
5.3.260.0070.07014.64
5.3.250.0100.03714.62
5.3.240.0000.04314.55
5.3.230.0100.06314.55
5.3.220.0130.03714.71
5.3.210.0070.04314.56
5.3.200.0230.06314.64
5.3.190.0100.05714.65
5.3.180.0070.07014.61
5.3.170.0100.06314.61
5.3.160.0170.04714.61
5.3.150.0070.08714.68
5.3.140.0070.07714.54
5.3.130.0030.05314.50
5.3.120.0100.07314.67
5.3.110.0100.07014.71
5.3.100.0100.06314.11
5.3.90.0030.07714.04
5.3.80.0030.06714.00
5.3.70.0030.07014.10
5.3.60.0100.07014.05
5.3.50.0100.07314.10
5.3.40.0070.06713.90
5.3.30.0070.07013.84
5.3.20.0100.05313.82
5.3.10.0100.06313.63
5.3.00.0000.05313.59
5.2.170.0070.05311.62
5.2.160.0030.03711.62
5.2.150.0030.03711.62
5.2.140.0100.05711.62
5.2.130.0130.05011.62
5.2.120.0030.05711.62
5.2.110.0030.06311.62
5.2.100.0070.05311.62
5.2.90.0070.06311.62
5.2.80.0030.05311.62
5.2.70.0030.06311.62
5.2.60.0070.06311.62
5.2.50.0030.06311.62
5.2.40.0070.05711.62
5.2.30.0030.03311.62
5.2.20.0000.06711.62
5.2.10.0100.04711.62
5.2.00.0030.04011.62
5.1.60.0030.05011.62
5.1.50.0000.05311.62
5.1.40.0100.04711.62
5.1.30.0000.06011.62
5.1.20.0000.06011.62
5.1.10.0070.05711.62
5.1.00.0070.03711.62
5.0.50.0100.03711.62
5.0.40.0070.04011.62
5.0.30.0030.06011.62
5.0.20.0030.03711.62
5.0.10.0030.02311.62
5.0.00.0000.05311.62
4.4.90.0030.03311.62
4.4.80.0030.03711.62
4.4.70.0000.03711.62
4.4.60.0000.03311.62
4.4.50.0000.04011.62
4.4.40.0000.04311.62
4.4.30.0030.03011.62
4.4.20.0030.02311.62
4.4.10.0000.04011.62
4.4.00.0030.05711.62
4.3.110.0000.02011.62
4.3.100.0000.02011.62
4.3.90.0000.03711.62
4.3.80.0030.05311.62
4.3.70.0000.03711.62
4.3.60.0000.03711.62
4.3.50.0000.03711.62
4.3.40.0000.04711.62
4.3.30.0000.03711.62
4.3.20.0070.03011.62
4.3.10.0030.03311.62
4.3.00.0070.03011.62

preferences:
41.65 ms | 401 KiB | 5 Q