3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = 'x'; z(1); function f($a) { global $b; var_dump($b); } function g($a) { f($a); } function h($a) { g($a); } function i($a) { h($a); } function j($a) { i($a); } function k($a) { j($a); } function l($a) { k($a); } function m($a) { l($a); } function n($a) { m($a); } function o($a) { n($a); } function p($a) { o($a); } function q($a) { p($a); } function r($a) { q($a); } function s($a) { r($a); } function t($a) { s($a); } function u($a) { t($a); } function v($a) { u($a); } function w($a) { v($a); } function x($a) { w($a); } function y($a) { x($a); } function z($a) { y($a); }

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)
8.3.60.0110.01116.50
8.3.50.0120.00721.27
8.3.40.0110.00418.32
8.3.30.0110.00718.71
8.3.20.0040.00420.30
8.3.10.0000.00823.66
8.3.00.0080.00019.25
8.2.180.0100.01018.04
8.2.170.0140.00322.96
8.2.160.0070.00718.99
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00020.32
8.2.120.0070.00026.35
8.2.110.0060.00319.24
8.2.100.0000.01117.59
8.2.90.0000.00819.23
8.2.80.0060.00317.97
8.2.70.0040.00417.50
8.2.60.0030.00517.91
8.2.50.0030.00618.10
8.2.40.0040.00420.59
8.2.30.0080.00019.22
8.2.20.0030.00518.05
8.2.10.0000.00718.20
8.2.00.0000.00718.29
8.1.280.0120.00325.92
8.1.270.0000.00722.19
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0090.00022.09
8.1.230.0100.00017.82
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.25
8.1.190.0000.00817.22
8.1.180.0040.00418.10
8.1.170.0030.00618.57
8.1.160.0070.00018.93
8.1.150.0100.00019.95
8.1.140.0050.00319.51
8.1.130.0030.00319.02
8.1.120.0000.00717.29
8.1.110.0020.00517.41
8.1.100.0040.00417.46
8.1.90.0040.00417.43
8.1.80.0110.00017.38
8.1.70.0000.00717.43
8.1.60.0050.00217.55
8.1.50.0000.00817.54
8.1.40.0050.00517.43
8.1.30.0040.00417.65
8.1.20.0000.00817.56
8.1.10.0050.00317.36
8.1.00.0000.00817.35
8.0.300.0080.00018.77
8.0.290.0050.00316.63
8.0.280.0040.00418.30
8.0.270.0030.00617.13
8.0.260.0000.00719.00
8.0.250.0040.00416.84
8.0.240.0000.00716.87
8.0.230.0030.00316.89
8.0.220.0000.00716.82
8.0.210.0070.00016.84
8.0.200.0000.00716.75
8.0.190.0040.00416.81
8.0.180.0070.00016.86
8.0.170.0040.00416.81
8.0.160.0000.00816.89
8.0.150.0090.00016.85
8.0.140.0030.00316.77
8.0.130.0030.00313.25
8.0.120.0070.00016.63
8.0.110.0070.00016.71
8.0.100.0040.00416.68
8.0.90.0040.00416.86
8.0.80.0090.00616.89
8.0.70.0000.00716.69
8.0.60.0040.00416.94
8.0.50.0080.00016.62
8.0.30.0100.01017.07
8.0.20.0110.01117.40
8.0.10.0050.00216.95
8.0.00.0180.00616.82
7.4.330.0000.00515.55
7.4.320.0030.00316.38
7.4.300.0030.00316.41
7.4.290.0030.00316.62
7.4.280.0040.00416.51
7.4.270.0030.00316.50
7.4.260.0040.00416.52
7.4.250.0040.00416.46
7.4.240.0030.00316.49
7.4.230.0000.00716.53
7.4.220.0030.00316.25
7.4.210.0070.00716.64
7.4.200.0000.00716.39
7.4.160.0070.01016.33
7.4.150.0090.01217.40
7.4.140.0080.01417.86
7.4.130.0110.01416.57
7.4.120.0120.00916.38
7.4.110.0110.00616.49
7.4.100.0120.00616.38
7.4.90.0030.01516.62
7.4.80.0090.01219.39
7.4.70.0060.01016.55
7.4.60.0130.00316.58
7.4.50.0050.00516.48
7.4.40.0090.01416.47
7.4.30.0090.00616.35
7.4.10.0070.01214.99
7.4.00.0100.00614.96
7.3.330.0000.00613.18
7.3.320.0040.00413.18
7.3.310.0000.00716.20
7.3.300.0000.00716.14
7.3.290.0000.00716.28
7.3.280.0080.01016.22
7.3.270.0120.00917.40
7.3.260.0090.00916.32
7.3.240.0090.01016.28
7.3.230.0090.00916.25
7.3.210.0040.01516.36
7.3.200.0140.00716.18
7.3.190.0130.00616.58
7.3.180.0090.00616.42
7.3.170.0140.00716.23
7.3.160.0040.01416.18
7.3.130.0070.01014.60
7.3.120.0120.00514.72
7.3.110.0100.01014.84
7.3.100.0060.01014.68
7.3.90.0070.00914.73
7.3.80.0080.00314.85
7.3.70.0110.00514.82
7.3.60.0030.01214.86
7.3.50.0020.01214.77
7.3.40.0060.00614.62
7.3.30.0090.00314.63
7.3.20.0070.00716.65
7.3.10.0110.00516.79
7.3.00.0070.00616.43
7.2.330.0080.00816.35
7.2.320.0060.01216.59
7.2.310.0120.00916.67
7.2.300.0150.00616.19
7.2.290.0040.01816.62
7.2.260.0070.01315.01
7.2.250.0070.01014.84
7.2.240.0120.00314.88
7.2.230.0050.01115.00
7.2.220.0070.01014.96
7.2.210.0040.00715.00
7.2.200.0020.01414.78
7.2.190.0070.00714.90
7.2.180.0130.00214.99
7.2.170.0080.00414.91
7.2.160.0080.00915.02
7.2.150.0120.00716.81
7.2.140.0080.00816.62
7.2.130.0040.00916.81
7.2.120.0030.00916.69
7.2.110.0070.00816.69
7.2.100.0060.00816.83
7.2.90.0090.00516.68
7.2.80.0060.00816.74
7.2.70.0050.01116.79
7.2.60.0040.00916.65
7.2.50.0020.00816.58
7.2.40.0080.00616.65
7.2.30.0040.00816.66
7.2.20.0030.01016.85
7.2.10.0050.00816.82
7.2.00.0090.00416.70
7.1.330.0050.00915.89
7.1.320.0060.00615.95
7.1.310.0070.00415.78
7.1.300.0060.00715.56
7.1.290.0090.00315.85
7.1.280.0050.00715.69
7.1.270.0020.01215.80
7.1.260.0050.00515.84
7.1.250.0030.00615.70
7.1.240.0000.01215.86
7.1.230.0070.00815.84
7.1.220.0050.00915.74
7.1.210.0080.00315.70
7.1.200.0060.00715.72
7.1.190.0050.01015.71
7.1.180.0080.00215.85
7.1.170.0060.00715.57
7.1.160.0020.01215.72
7.1.150.0040.00515.79
7.1.140.0100.00215.84
7.1.130.0070.00915.71
7.1.120.0050.00615.68
7.1.110.0070.00615.89
7.1.100.0080.00415.78
7.1.90.0000.01315.71
7.1.80.0060.00815.62
7.1.70.0070.00816.18
7.1.60.0060.00816.22
7.1.50.0050.01115.74
7.1.40.0100.01021.94
7.1.30.0060.01421.99
7.1.20.0110.01021.92
7.1.10.0020.01015.95
7.1.00.0030.00916.04
7.0.330.0060.00615.32
7.0.320.0090.00415.43
7.0.310.0030.00915.19
7.0.300.0080.00315.23
7.0.290.0060.00915.39
7.0.280.0060.00515.17
7.0.270.0060.00515.52
7.0.260.0050.00715.30
7.0.250.0080.00615.43
7.0.240.0130.00015.37
7.0.230.0030.00915.39
7.0.220.0050.00415.29
7.0.210.0070.00715.47
7.0.200.0110.00315.77
7.0.190.0030.00715.33
7.0.180.0040.00815.57
7.0.170.0050.00815.58
7.0.160.0040.00915.51
7.0.150.0050.00915.57
7.0.140.0080.00615.68
7.0.130.0060.00715.74
7.0.120.0050.01015.65
7.0.110.0030.01015.61
7.0.100.0050.01115.65
7.0.90.0030.01015.65
7.0.80.0030.00915.61
7.0.70.0030.00915.56
7.0.60.0060.01015.44
7.0.50.0020.01315.73
7.0.40.0050.00914.29
7.0.30.0040.00914.36
7.0.20.0030.00914.33
7.0.10.0020.01314.31
7.0.00.0050.01114.37
5.6.400.0050.00614.22
5.6.390.0070.00414.31
5.6.380.0070.00714.18
5.6.370.0030.00914.15
5.6.360.0080.00514.08
5.6.350.0020.01014.30
5.6.340.0060.00814.43
5.6.330.0050.00914.57
5.6.320.0050.00714.19
5.6.310.0090.00414.23
5.6.300.0030.00914.47
5.6.290.0030.00914.24
5.6.280.0070.00514.28
5.6.270.0080.00514.39
5.6.260.0070.00914.37
5.6.250.0080.00914.31
5.6.240.0040.00714.07
5.6.230.0020.01214.33
5.6.220.0110.00414.16
5.6.210.0050.00814.27
5.6.200.0050.00714.17
5.6.190.0050.00914.08
5.6.180.0070.00714.13
5.6.170.0030.01114.21
5.6.160.0090.00414.23
5.6.150.0050.00614.21
5.6.140.0080.00614.28
5.6.130.0020.01114.14
5.6.120.0060.00814.29
5.6.110.0040.00814.18
5.6.100.0080.00614.40
5.6.90.0070.00814.29
5.6.80.0050.00914.19
5.6.70.0040.01114.04
5.6.60.0100.00514.05
5.6.50.0020.00814.13
5.6.40.0090.00214.21
5.6.30.0060.00814.05
5.6.20.0080.00614.13
5.6.10.0060.00614.21
5.6.00.0030.00814.13

preferences:
64.59 ms | 401 KiB | 5 Q