3v4l.org

run code in 300+ PHP versions simultaneously
<?php function g($a, $b, $c) { f($a, $b, $c); } function f(int $a, int $b = null, int $c = null) { //xdebug_debug_zval('a', 'b', 'c'); error_log(json_encode([$a, $b, $c])); error_log(json_encode(func_get_args())); } function add1($x) { return ++$x; } function changeF($code, $str) { error_log("in changeF"); //error_log($str); preg_match('/^Argument (\\d+) /', $str, $m); $i = $m[1]-1; $a = "$i"; $bt = debug_backtrace(null, 2); $bt1 = $bt[1]['args']; //xdebug_debug_zval("bt1"); //print_r($bt); $a = "$a {$bt[1]['args'][$i]}"; $bt[1]['args'][$i] = add1($bt[1]['args'][$i]); $bt1 = $bt[1]['args']; //xdebug_debug_zval("bt1"); $a = "$a {$bt[1]['args'][$i]}"; if (false && $i == 1) { $a = "$a ({$bt[1]['args'][1+$i]}"; ++$bt[1]['args'][1+$i]; $a = "$a {$bt[1]['args'][1+$i]})"; } error_log($a); //$zval = $bt[1]['args'][1]; //$bt[1]['args'][1] = add1($bt[1]['args'][1]); //print_r($bt); return true; } set_error_handler('changeF', E_ALL); //f(2, 1); g(3, 2, 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)
8.3.60.0130.00716.63
8.3.50.0080.00922.99
8.3.40.0060.00918.63
8.3.30.0040.01119.01
8.3.20.0040.00420.47
8.3.10.0060.00323.61
8.3.00.0080.00017.63
8.2.180.0150.00416.32
8.2.170.0040.01122.96
8.2.160.0130.00320.35
8.2.150.0050.00224.18
8.2.140.0050.00324.66
8.2.130.0060.00326.16
8.2.120.0070.00019.64
8.2.110.0120.00922.20
8.2.100.0000.01117.72
8.2.90.0000.00819.28
8.2.80.0080.00017.97
8.2.70.0000.00817.50
8.2.60.0060.00317.80
8.2.50.0000.00918.07
8.2.40.0050.00320.00
8.2.30.0050.00317.97
8.2.20.0040.00417.63
8.2.10.0070.00017.98
8.2.00.0040.00417.70
8.1.280.0070.01425.92
8.1.270.0060.00323.98
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00423.84
8.1.230.0040.00819.16
8.1.220.0070.00017.74
8.1.210.0040.00418.77
8.1.200.0030.00617.22
8.1.190.0040.00417.22
8.1.180.0040.00418.10
8.1.170.0050.00318.67
8.1.160.0020.00522.10
8.1.150.0070.00318.91
8.1.140.0000.00717.46
8.1.130.0040.00417.75
8.1.120.0050.00217.30
8.1.110.0090.00017.41
8.1.100.0000.00817.45
8.1.90.0000.00717.43
8.1.80.0000.00717.41
8.1.70.0000.00717.40
8.1.60.0000.00817.54
8.1.50.0000.00817.49
8.1.40.0000.00917.49
8.1.30.0050.00317.59
8.1.20.0080.00017.51
8.1.10.0020.00517.52
8.1.00.0000.00817.46
8.0.300.0030.00618.77
8.0.290.0070.00016.75
8.0.280.0000.00718.43
8.0.270.0030.00317.10
8.0.260.0030.00317.25
8.0.250.0000.00816.86
8.0.240.0040.00416.95
8.0.230.0030.00317.00
8.0.220.0030.00316.93
8.0.210.0020.00516.98
8.0.200.0030.00616.86
8.0.190.0070.00016.87
8.0.180.0030.00516.84
8.0.170.0050.00316.88
8.0.160.0000.00716.90
8.0.150.0040.00416.77
8.0.140.0080.00016.85
8.0.130.0000.00713.37
8.0.120.0060.00316.78
8.0.110.0040.00416.82
8.0.100.0040.00416.95
8.0.90.0000.00716.82
8.0.80.0100.00716.96
8.0.70.0000.00817.00
8.0.60.0030.00516.89
8.0.50.0000.00816.90
8.0.30.0090.01417.10
8.0.20.0080.01117.40
8.0.10.0050.00316.88
8.0.00.0070.01516.63
7.4.330.0050.00015.03
7.4.320.0060.00016.58
7.4.300.0000.00716.50
7.4.290.0000.00716.38
7.4.280.0030.00616.57
7.4.270.0000.00716.57
7.4.260.0030.00516.58
7.4.250.0000.00716.55
7.4.240.0040.00316.43
7.4.230.0000.00716.38
7.4.220.0060.01316.47
7.4.210.0030.01016.52
7.4.200.0040.00416.36
7.4.160.0110.00516.48
7.4.150.0090.00917.40
7.4.140.0120.00617.86
7.4.130.0050.01416.46
7.4.120.0080.00816.64
7.4.110.0080.00816.35
7.4.100.0180.00316.49
7.4.90.0160.00316.51
7.4.80.0100.01219.39
7.4.70.0100.01016.44
7.4.60.0100.00616.35
7.4.50.0000.00516.36
7.4.40.0070.01016.40
7.4.30.0030.01316.65
7.4.00.0060.00814.84
7.3.330.0050.00013.33
7.3.320.0050.00313.11
7.3.310.0030.00316.33
7.3.300.0030.00316.25
7.3.290.0150.00616.46
7.3.280.0060.01016.33
7.3.270.0090.01417.40
7.3.260.0060.01016.52
7.3.250.0110.00616.48
7.3.240.0140.01116.68
7.3.230.0090.00616.60
7.3.210.0140.00416.21
7.3.200.0110.00719.39
7.3.190.0100.00716.34
7.3.180.0070.01116.36
7.3.170.0100.00716.52
7.3.160.0080.00816.48
7.3.120.0100.00714.63
7.3.110.0060.01014.91
7.3.100.0030.00614.48
7.3.90.0070.01014.73
7.3.80.0090.00614.90
7.3.70.0030.01214.93
7.3.60.0000.01714.91
7.3.50.0060.00615.01
7.3.40.0000.01114.94
7.3.30.0040.01114.57
7.3.20.0030.00716.63
7.3.10.0070.01016.43
7.3.00.0060.00616.70
7.2.330.0040.01416.63
7.2.320.0060.01016.77
7.2.310.0060.01216.53
7.2.300.0090.00616.64
7.2.290.0060.01116.50
7.2.250.0100.01014.65
7.2.240.0070.01114.99
7.2.230.0090.00915.30
7.2.220.0000.01114.74
7.2.210.0100.00314.82
7.2.200.0070.00715.10
7.2.190.0040.00714.96
7.2.180.0070.00715.12
7.2.170.0090.00615.04
7.2.60.0070.00716.62
7.2.00.0090.00619.48
7.1.330.0030.01015.90
7.1.320.0030.00915.71
7.1.310.0060.00615.82
7.1.300.0000.01515.75
7.1.290.0060.00615.57
7.1.280.0070.00315.82
7.1.270.0070.00815.71
7.1.260.0030.00615.70
7.1.200.0030.00615.78
7.1.70.0040.00417.16
7.1.60.0040.00816.89
7.1.50.0120.01216.87
7.1.00.0030.07722.37
7.0.200.0040.00816.62
7.0.140.0030.07722.15
7.0.90.0130.08719.98
7.0.80.0170.06320.17
7.0.70.0630.08019.98
7.0.60.0500.07020.07
7.0.50.0800.07320.40
7.0.40.0100.05320.18
7.0.30.0030.05019.96
7.0.20.0100.04320.14
7.0.10.0070.07020.07
7.0.00.0170.07020.07
5.6.240.0130.04720.61
5.6.230.0030.07720.67
5.6.220.0030.06720.69
5.6.210.0100.06720.57
5.6.200.0030.05020.95
5.6.190.0070.08321.10
5.6.180.0130.06021.10
5.6.170.0030.04720.97
5.6.160.0070.08321.19
5.6.150.0000.06321.05
5.6.140.0070.07721.03
5.6.130.0070.04721.09
5.6.120.0130.08320.97
5.6.110.0100.08021.09
5.6.100.0100.07721.17
5.6.90.0070.07320.91
5.6.80.0000.04320.50
5.6.70.0030.05720.44
5.6.60.0100.03320.47
5.6.50.0070.03720.43
5.6.40.0030.06320.42
5.6.30.0030.04020.43
5.6.20.0030.04020.32
5.6.10.0070.03720.39
5.6.00.0100.07720.37
5.5.380.0070.07320.39
5.5.370.0070.07020.36
5.5.360.0130.08020.41
5.5.350.0170.08020.46
5.5.340.0130.08320.95
5.5.330.0100.08020.95
5.5.320.0000.04720.95
5.5.310.0070.04720.90
5.5.300.0100.04020.94
5.5.290.0100.04720.79
5.5.280.0100.06320.90
5.5.270.0130.07320.84
5.5.260.0100.06320.63
5.5.250.0130.07020.62
5.5.240.0000.09020.20
5.5.230.0070.07320.31
5.5.220.0100.07320.19
5.5.210.0070.04020.13
5.5.200.0030.04720.30
5.5.190.0030.04320.17
5.5.180.0030.04720.17
5.5.160.0030.04020.01
5.5.150.0070.04020.13
5.5.140.0100.03320.22
5.5.130.0070.03720.16
5.5.120.0000.04320.14
5.5.110.0100.03320.25
5.5.100.0130.03020.09
5.5.90.0200.05720.11
5.5.80.0000.03720.09
5.5.70.0030.05720.02
5.5.60.0070.04320.02
5.5.50.0070.04020.10
5.5.40.0070.05720.12
5.5.30.0000.04320.10
5.5.20.0070.04020.09
5.5.10.0030.04320.12
5.5.00.0030.04320.03
5.4.450.0000.08019.51
5.4.440.0100.04019.37
5.4.430.0070.07719.43
5.4.420.0170.07019.50
5.4.410.0030.08019.23
5.4.400.0070.06019.14
5.4.390.0030.04019.18
5.4.380.0030.03719.19
5.4.370.0100.03019.16
5.4.360.0070.04019.18
5.4.350.0030.04019.02
5.4.340.0030.04018.90
5.4.320.0000.04019.03
5.4.310.0030.05318.90
5.4.300.0000.04019.03
5.4.290.0030.04019.05
5.4.280.0000.04019.03
5.4.270.0000.04018.82
5.4.260.0030.03718.84
5.4.250.0000.04019.03
5.4.240.0070.03719.20
5.4.230.0030.03719.04
5.4.220.0070.03719.18
5.4.210.0070.03719.13
5.4.200.0030.04019.04
5.4.190.0000.03718.99
5.4.180.0030.03718.93
5.4.170.0030.04019.08
5.4.160.0030.04718.86
5.4.150.0000.05719.05
5.4.140.0070.03316.26
5.4.130.0070.05016.41
5.4.120.0030.03716.44
5.4.110.0100.05016.39
5.4.100.0100.05316.38
5.4.90.0100.06316.53
5.4.80.0030.03016.37
5.4.70.0000.04016.54
5.4.60.0030.07016.27
5.4.50.0030.05716.36
5.4.40.0030.07716.52
5.4.30.0030.05316.44
5.4.20.0030.05716.31
5.4.10.0030.06716.33
5.4.00.0000.04315.75
5.3.290.0070.03714.65
5.3.280.0000.04014.70
5.3.270.0030.03714.53
5.3.260.0070.03314.53
5.3.250.0270.02014.72
5.3.240.0000.04014.64
5.3.230.0070.05314.59
5.3.220.0030.04014.69
5.3.210.0030.03314.69
5.3.200.0070.03014.60
5.3.190.0030.04714.62
5.3.180.0070.03314.57
5.3.170.0030.04014.51
5.3.160.0070.05714.50
5.3.150.0070.07014.50
5.3.140.0070.06314.58
5.3.130.0000.07714.67
5.3.120.0030.08314.61
5.3.110.0100.07014.66
5.3.100.0070.08014.13
5.3.90.0130.04714.01
5.3.80.0170.05314.02
5.3.70.0030.08013.91
5.3.60.0030.05713.93
5.3.50.0130.06714.09
5.3.40.0030.04313.84
5.3.30.0100.05013.84
5.3.20.0030.07313.62
5.3.10.0030.05313.67
5.3.00.0070.06313.75
5.2.170.0100.05011.03
5.2.160.0170.04711.19
5.2.150.0070.06311.07
5.2.140.0000.03311.25
5.2.130.0070.05711.10
5.2.120.0100.03711.11
5.2.110.0000.05710.97
5.2.100.0030.06311.11
5.2.90.0070.05011.15
5.2.80.0030.03711.13
5.2.70.0030.05011.11
5.2.60.0030.06310.95
5.2.50.0100.03711.16
5.2.40.0070.02711.05
5.2.30.0030.03311.11
5.2.20.0070.04311.02
5.2.10.0030.02710.88
5.2.00.0070.02310.63
5.1.60.0030.0279.88
5.1.50.0100.05310.11
5.1.40.0000.0379.83
5.1.30.0070.02710.34
5.1.20.0100.04010.41
5.1.10.0000.03310.11
5.1.00.0070.05310.11
5.0.50.0030.0238.55
5.0.40.0100.0408.51
5.0.30.0000.0638.34
5.0.20.0070.0308.19
5.0.10.0100.0308.08
5.0.00.0070.0608.20
4.4.90.0000.0177.62
4.4.80.0000.0377.62
4.4.70.0070.0337.62
4.4.60.0030.0237.62
4.4.50.0030.0137.62
4.4.40.0030.0507.62
4.4.30.0000.0177.62
4.4.20.0030.0337.62
4.4.10.0000.0207.62
4.4.00.0000.0507.62
4.3.110.0070.0207.62
4.3.100.0030.0237.62
4.3.90.0030.0177.62
4.3.80.0070.0307.62
4.3.70.0030.0307.62
4.3.60.0070.0137.62
4.3.50.0000.0177.62
4.3.40.0030.0337.62
4.3.30.0000.0377.62
4.3.20.0000.0277.62
4.3.10.0000.0307.62
4.3.00.0000.0207.62

preferences:
39.71 ms | 401 KiB | 5 Q