3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_internal_encoding()); 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) { $k = _js_enc_value($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) { $pattern = "@[\x08-\x10\x0c\x0d\\\\\"/]|([^\x08-\x10\x0c\x0d\x32-\x7f\\\\\"/])++@"; return preg_replace_callback($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)
8.3.60.0040.01218.39
8.3.50.0090.01122.04
8.3.40.0070.00718.91
8.3.30.0110.00718.93
8.3.20.0080.00018.82
8.3.10.0050.00320.95
8.3.00.0030.00621.94
8.2.180.0120.00316.38
8.2.170.0140.00322.96
8.2.160.0070.00720.38
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00419.36
8.2.110.0070.00320.52
8.2.100.0080.00417.91
8.2.90.0040.00419.05
8.2.80.0080.00018.04
8.2.70.0040.00417.63
8.2.60.0080.00018.05
8.2.50.0000.00818.07
8.2.40.0000.00818.13
8.2.30.0000.00819.91
8.2.20.0040.00417.79
8.2.10.0080.00017.73
8.2.00.0040.00417.84
8.1.280.0070.01125.92
8.1.270.0000.00823.99
8.1.260.0060.00326.35
8.1.250.0070.00028.09
8.1.240.0040.00422.48
8.1.230.0080.00321.03
8.1.220.0030.00518.77
8.1.210.0040.00419.02
8.1.200.0030.00617.36
8.1.190.0000.00817.65
8.1.180.0000.00818.10
8.1.170.0040.00418.55
8.1.160.0050.00218.76
8.1.150.0070.00018.68
8.1.140.0000.00717.32
8.1.130.0080.00017.78
8.1.120.0020.00517.46
8.1.110.0000.00717.48
8.1.100.0040.00417.40
8.1.90.0040.00417.47
8.1.80.0000.00817.44
8.1.70.0000.00717.46
8.1.60.0000.00817.58
8.1.50.0000.00817.48
8.1.40.0050.00317.43
8.1.30.0040.00417.56
8.1.20.0080.00017.65
8.1.10.0030.00617.57
8.1.00.0060.00617.53
8.0.300.0000.00719.80
8.0.290.0040.00417.30
8.0.280.0070.00018.57
8.0.270.0030.00317.32
8.0.260.0000.00716.88
8.0.250.0000.00717.05
8.0.240.0040.00417.12
8.0.230.0030.00316.98
8.0.220.0000.00717.04
8.0.210.0040.00416.89
8.0.200.0030.00316.98
8.0.190.0040.00417.13
8.0.180.0040.00417.04
8.0.170.0040.00416.92
8.0.160.0000.00717.04
8.0.150.0040.00416.89
8.0.140.0050.00517.04
8.0.130.0000.00613.38
8.0.120.0000.00816.97
8.0.110.0000.00716.97
8.0.100.0040.00416.95
8.0.90.0000.00717.08
8.0.80.0040.01116.95
8.0.70.0030.00517.03
8.0.60.0000.00817.04
8.0.50.0000.00916.81
8.0.30.0130.00716.93
8.0.20.0090.00917.40
8.0.10.0040.00416.91
8.0.00.0110.00916.77
7.4.330.0020.00214.72
7.4.320.0060.00016.53
7.4.300.0040.00416.57
7.4.290.0030.00716.58
7.4.280.0060.00316.61
7.4.270.0000.00716.62
7.4.260.0050.00013.30
7.4.250.0000.01016.57
7.4.240.0030.00316.52
7.4.230.0030.00316.50
7.4.220.0060.01216.61
7.4.210.0050.01016.57
7.4.200.0040.00416.40
7.4.190.0000.01016.42
7.4.160.0170.00016.45
7.4.150.0150.00817.40
7.4.140.0080.01017.86
7.4.130.0110.00516.60
7.4.120.0090.00916.52
7.4.110.0070.01116.55
7.4.100.0100.00716.59
7.4.90.0130.00516.62
7.4.80.0120.00619.37
7.4.70.0100.00716.66
7.4.60.0060.01116.39
7.4.50.0000.00816.46
7.4.40.0120.00322.27
7.4.30.0030.01416.65
7.4.00.0080.00915.06
7.3.330.0030.00213.23
7.3.320.0050.00013.09
7.3.310.0030.00316.40
7.3.300.0040.00416.25
7.3.290.0120.00916.36
7.3.280.0090.00616.34
7.3.270.0040.01417.40
7.3.260.0110.00618.24
7.3.250.0100.01116.45
7.3.240.0060.01116.54
7.3.230.0070.01116.61
7.3.210.0060.01216.66
7.3.200.0100.00719.39
7.3.190.0130.01016.49
7.3.180.0100.00616.44
7.3.170.0140.00316.55
7.3.160.0140.00316.41
7.3.120.0050.01014.97
7.3.110.0000.01814.78
7.3.100.0080.00814.55
7.3.90.0060.01214.92
7.3.80.0030.01014.79
7.3.70.0030.01014.70
7.3.60.0040.01214.63
7.3.50.0030.01014.77
7.3.40.0040.01214.86
7.3.30.0040.00814.89
7.3.20.0070.00716.79
7.3.10.0060.01016.54
7.3.00.0050.00516.62
7.2.330.0090.00916.71
7.2.320.0130.00316.61
7.2.310.0160.00616.57
7.2.300.0090.00916.70
7.2.290.0140.00316.43
7.2.250.0030.01615.14
7.2.240.0030.01314.98
7.2.230.0100.00715.06
7.2.220.0030.01614.82
7.2.210.0040.01114.86
7.2.200.0090.00614.55
7.2.190.0080.00814.96
7.2.180.0070.00714.90
7.2.170.0060.00314.83
7.2.130.0100.00316.84
7.2.120.0090.00916.63
7.2.110.0040.01116.64
7.2.100.0110.00016.75
7.2.90.0090.00616.98
7.2.80.0090.00716.69
7.2.70.0000.01116.79
7.2.60.0070.00716.68
7.2.50.0030.01016.84
7.2.40.0060.00616.83
7.2.30.0120.00316.76
7.2.20.0070.00416.97
7.2.10.0080.00816.74
7.2.00.0030.01117.93
7.1.330.0070.01015.59
7.1.320.0040.00715.58
7.1.310.0030.01315.82
7.1.300.0030.01315.50
7.1.290.0060.00615.76
7.1.280.0060.00315.43
7.1.270.0040.01215.59
7.1.260.0030.01215.55
7.1.250.0030.00615.49
7.1.200.0040.01115.76
7.1.100.0100.00318.15
7.1.70.0080.00816.64
7.1.60.0140.01019.40
7.1.50.0160.00616.91
7.1.00.0030.03722.28
7.0.200.0040.00416.46
7.0.140.0070.06722.08
7.0.90.0030.09319.88
7.0.80.0030.04719.94
7.0.70.0070.04720.11
7.0.60.0070.07719.86
7.0.50.0100.07020.37
7.0.40.0070.07720.09
7.0.30.0170.07720.14
7.0.20.0170.07020.12
7.0.10.0170.04720.12
7.0.00.0030.04319.99
5.6.280.0030.07320.82
5.6.240.0100.08320.58
5.6.230.0070.08720.64
5.6.220.0130.07720.69
5.6.210.0030.05320.61
5.6.200.0130.08021.07
5.6.190.0070.09020.96
5.6.180.0000.04721.12
5.6.170.0200.07321.05
5.6.160.0030.08021.12
5.6.150.0170.07021.03
5.6.140.0070.05721.13
5.6.130.0130.05721.07
5.6.120.0070.08320.97
5.6.110.0170.07021.02
5.6.100.0030.08720.96
5.6.90.0100.08321.06
5.6.80.0100.05320.36
5.6.70.0100.08020.57
5.6.60.0000.08320.44
5.6.50.0100.03320.46
5.6.40.0130.07020.45
5.6.30.0070.07720.42
5.6.20.0100.07720.39
5.6.10.0170.04720.43
5.6.00.0100.04320.44
5.5.380.0000.08320.48
5.5.370.0170.06720.39
5.5.360.0070.04720.50
5.5.350.0030.05720.41
5.5.340.0100.04020.88
5.5.330.0000.09020.84
5.5.320.0200.07020.88
5.5.310.0100.07720.80
5.5.300.0200.07020.75
5.5.290.0030.08720.89
5.5.280.0100.06020.92
5.5.270.0130.08320.61
5.5.260.0070.04720.83
5.5.250.0100.04720.66
5.5.240.0130.03720.31
5.5.230.0100.06320.16
5.5.220.0030.05020.04
5.5.210.0030.05020.32
5.5.200.0030.04320.14
5.5.190.0030.08320.09
5.5.180.0070.05020.13
5.5.160.0070.04320.16
5.5.150.0030.05320.12
5.5.140.0070.04320.26
5.5.130.0070.04020.23
5.5.120.0000.04320.22
5.5.110.0100.04020.22
5.5.100.0070.03719.95
5.5.90.0070.04019.98
5.5.80.0070.05320.14
5.5.70.0070.04020.16
5.5.60.0100.03720.02
5.5.50.0100.03320.06
5.5.40.0070.05020.07
5.5.30.0000.04020.09
5.5.20.0070.03720.07
5.5.10.0070.03320.05
5.5.00.0130.02720.12
5.4.450.0170.07019.52
5.4.440.0030.04319.20
5.4.430.0130.07319.17
5.4.420.0070.04719.50
5.4.410.0070.08319.36
5.4.400.0070.07018.88
5.4.390.0030.06719.09
5.4.380.0070.07018.90
5.4.370.0130.07318.91
5.4.360.0100.04719.09
5.4.350.0100.07018.87
5.4.340.0030.04719.16
5.4.320.0070.04318.95
5.4.310.0030.07319.03
5.4.300.0000.06319.09
5.4.290.0030.04719.12
5.4.280.0130.05319.04
5.4.270.0100.03019.03
5.4.260.0100.03318.90
5.4.250.0030.03719.15
5.4.240.0070.07719.08
5.4.230.0030.04018.90
5.4.220.0000.04719.04
5.4.210.0000.04019.09
5.4.200.0030.03719.23
5.4.190.0030.03718.93
5.4.180.0000.05019.04
5.4.170.0030.04019.02
5.4.160.0030.03719.01
5.4.150.0070.03719.11
5.4.140.0070.03316.53
5.4.130.0000.03716.34
5.4.120.0070.04016.42
5.4.110.0030.04716.40
5.4.100.0100.02716.39
5.4.90.0030.03316.55
5.4.80.0030.03316.39
5.4.70.0000.03716.51
5.4.60.0100.03016.36
5.4.50.0070.04016.45
5.4.40.0000.03716.37
5.4.30.0000.07316.40
5.4.20.0030.03316.32
5.4.10.0030.03716.33
5.4.00.0030.04015.75
5.3.290.0070.05014.71
5.3.280.0000.04014.67
5.3.270.0070.03314.72
5.3.260.0100.03014.74
5.3.250.0070.07314.77
5.3.240.0000.04314.64
5.3.230.0030.05014.58
5.3.220.0030.03314.65
5.3.210.0170.04714.56
5.3.200.0030.03714.60
5.3.190.0000.04714.69
5.3.180.0030.03714.66
5.3.170.0000.04014.57
5.3.160.0070.03714.70
5.3.150.0030.03714.71
5.3.140.0000.04014.50
5.3.130.0030.03714.68
5.3.120.0030.07014.51
5.3.110.0030.06714.57
5.3.100.0100.03014.06
5.3.90.0000.06013.99
5.3.80.0030.03714.10
5.3.70.0100.03014.10
5.3.60.0000.04013.96
5.3.50.0000.04014.00
5.3.40.0000.03714.10
5.3.30.0030.05314.01
5.3.20.0030.03313.61
5.3.10.0070.05313.61
5.3.00.0000.03713.64
5.2.170.0030.02711.31
5.2.160.0000.03311.20
5.2.150.0030.02711.11
5.2.140.0000.03311.17
5.2.130.0070.02311.27
5.2.120.0000.03011.25
5.2.110.0000.03011.14
5.2.100.0000.02711.13
5.2.90.0000.03010.99
5.2.80.0030.02711.13
5.2.70.0030.02311.18
5.2.60.0000.03010.98
5.2.50.0000.03011.11
5.2.40.0000.03711.09
5.2.30.0030.02711.11
5.2.20.0000.05311.10
5.2.10.0070.04310.94
5.2.00.0070.02710.87
5.1.60.0100.04010.08
5.1.50.0030.03710.09
5.1.40.0030.06710.08
5.1.30.0100.04710.50
5.1.20.0000.06010.44
5.1.10.0070.0409.95
5.1.00.0070.04310.11
5.0.50.0030.0478.58
5.0.40.0000.0378.54
5.0.30.0000.0508.27
5.0.20.0000.0338.33
5.0.10.0000.0208.21
5.0.00.0000.0408.27
4.4.90.0030.0106.89
4.4.80.0000.0136.89
4.4.70.0070.0236.89
4.4.60.0030.0306.89
4.4.50.0030.0306.89
4.4.40.0030.0506.89
4.4.30.0000.0306.89
4.4.20.0030.0276.89
4.4.10.0030.0236.89
4.4.00.0000.0406.89
4.3.110.0030.0336.89
4.3.100.0000.0236.89
4.3.90.0000.0206.89
4.3.80.0030.0306.89
4.3.70.0000.0376.89
4.3.60.0030.0336.89
4.3.50.0030.0276.89
4.3.40.0000.0276.89
4.3.30.0030.0336.89
4.3.20.0000.0376.89
4.3.10.0030.0306.89
4.3.00.0030.0276.89

preferences:
44.7 ms | 401 KiB | 5 Q