3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test1 { public function __construct($z){ ++$z; echo "You sent me $z\n"; } } $c = 8; $o = new Test1($d = $c); var_dump($d,$d == $GLOBALS['d'],$z); echo "\n"; class Test2 { public function __construct(&$x){ ++$x; echo "You sent me $x\n"; } } $a = 8; $o = new Test2($b = &$a); var_dump($b,$b == $GLOBALS['b'],$x);

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)
8.3.60.0040.01518.43
8.3.50.0110.00917.47
8.3.40.0070.00718.88
8.3.30.0070.01118.66
8.3.20.0060.00318.82
8.3.10.0090.00020.34
8.3.00.0050.00317.59
8.2.180.0140.00716.73
8.2.170.0070.00722.96
8.2.160.0120.00322.26
8.2.150.0090.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00019.83
8.2.110.0030.00722.20
8.2.100.0090.00317.97
8.2.90.0050.00317.81
8.2.80.0040.00417.97
8.2.70.0000.00817.50
8.2.60.0000.00817.78
8.2.50.0030.00518.07
8.2.40.0000.00818.16
8.2.30.0080.00018.03
8.2.20.0050.00217.69
8.2.10.0070.00017.79
8.2.00.0020.00517.78
8.1.280.0160.00625.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0070.01122.14
8.1.230.0040.00720.88
8.1.220.0060.00317.74
8.1.210.0050.00318.88
8.1.200.0040.00417.35
8.1.190.0000.00817.53
8.1.180.0030.00518.10
8.1.170.0000.00818.89
8.1.160.0040.00418.87
8.1.150.0000.00818.64
8.1.140.0000.00717.48
8.1.130.0000.00717.80
8.1.120.0030.00317.39
8.1.110.0000.00817.48
8.1.100.0000.00717.40
8.1.90.0000.00817.44
8.1.80.0000.00717.37
8.1.70.0040.00417.38
8.1.60.0040.00417.57
8.1.50.0000.00717.41
8.1.40.0050.00317.45
8.1.30.0000.00917.64
8.1.20.0040.00417.61
8.1.10.0030.00617.55
8.1.00.0000.00717.53
8.0.300.0040.00420.03
8.0.290.0070.00016.75
8.0.280.0000.00718.35
8.0.270.0080.00017.32
8.0.260.0030.00316.83
8.0.250.0070.00017.00
8.0.240.0030.00617.10
8.0.230.0030.00317.08
8.0.220.0070.00016.92
8.0.210.0030.00316.86
8.0.200.0030.00317.02
8.0.190.0070.00016.98
8.0.180.0040.00417.02
8.0.170.0000.00917.02
8.0.160.0050.00216.98
8.0.150.0030.00516.84
8.0.140.0030.00616.80
8.0.130.0000.00613.33
8.0.120.0080.00016.95
8.0.110.0040.00416.93
8.0.100.0040.00416.96
8.0.90.0000.00716.98
8.0.80.0120.00317.01
8.0.70.0040.00416.95
8.0.60.0000.00716.78
8.0.50.0070.00016.94
8.0.30.0100.00817.17
8.0.20.0180.00317.12
8.0.10.0070.00017.03
8.0.00.0110.01016.90
7.4.330.0000.00614.81
7.4.320.0000.00716.50
7.4.300.0030.00316.63
7.4.290.0030.00316.51
7.4.280.0000.00816.51
7.4.270.0040.00416.59
7.4.260.0030.00313.20
7.4.250.0030.00616.50
7.4.240.0000.00716.51
7.4.230.0070.00016.58
7.4.220.0090.00916.39
7.4.210.0100.00916.57
7.4.200.0040.00416.67
7.4.190.0000.00716.55
7.4.160.0000.02116.52
7.4.150.0090.00917.07
7.4.140.0070.01017.23
7.4.130.0110.00916.53
7.4.120.0070.01016.59
7.4.110.0070.01016.29
7.4.100.0100.00616.56
7.4.90.0070.01116.62
7.4.80.0030.01318.80
7.4.70.0030.01916.53
7.4.60.0090.00916.59
7.4.50.0030.00516.41
7.4.40.0030.01022.27
7.4.30.0130.00316.41
7.4.00.0100.00815.10
7.3.330.0030.00313.28
7.3.320.0030.00313.25
7.3.310.0000.00716.43
7.3.300.0000.00716.29
7.3.290.0100.01016.44
7.3.280.0090.00816.40
7.3.270.0070.01017.07
7.3.260.0090.01318.24
7.3.250.0110.01116.40
7.3.240.0130.00316.65
7.3.230.0100.00716.40
7.3.210.0120.00616.49
7.3.200.0130.00919.39
7.3.190.0120.00616.57
7.3.180.0100.00516.42
7.3.170.0150.00616.50
7.3.160.0120.00416.61
7.3.120.0050.00914.64
7.3.110.0000.01914.88
7.3.100.0070.00714.86
7.3.90.0140.00015.08
7.3.80.0040.00814.78
7.3.70.0090.00614.66
7.3.60.0090.00614.65
7.3.50.0100.00614.86
7.3.40.0050.00514.97
7.3.30.0110.00414.69
7.3.20.0030.01016.66
7.3.10.0100.00616.68
7.3.00.0100.00716.50
7.2.330.0040.01416.87
7.2.320.0120.00616.92
7.2.310.0070.01016.49
7.2.300.0100.00616.79
7.2.290.0000.01616.85
7.2.250.0140.00415.30
7.2.240.0100.01015.18
7.2.230.0000.01315.14
7.2.220.0000.01415.14
7.2.210.0080.00614.89
7.2.200.0090.00615.18
7.2.190.0060.01214.71
7.2.180.0080.00415.21
7.2.170.0070.01015.09
7.2.00.0090.00619.58
7.1.330.0070.00715.98
7.1.320.0040.01115.88
7.1.310.0000.01115.81
7.1.300.0120.00615.54
7.1.290.0140.00015.55
7.1.280.0000.00915.68
7.1.270.0030.01315.76
7.1.260.0040.00715.98
7.1.100.0650.00716.25
7.1.70.0070.00717.01
7.1.60.0100.01319.40
7.1.50.0060.01616.98
7.1.00.0070.05722.35
7.0.200.0000.00816.73
7.0.140.0030.07721.95
7.0.60.0100.07719.93
7.0.50.0070.04017.72
7.0.40.0100.05020.24
7.0.30.0270.05320.13
7.0.20.0300.06320.28
7.0.10.0200.04720.26
7.0.00.0070.08320.06
5.6.280.0100.06720.77
5.6.210.0170.06720.54
5.6.200.0030.08018.19
5.6.190.0100.06320.67
5.6.180.0300.07020.39
5.6.170.0170.05020.48
5.6.160.0070.08020.54
5.6.150.0000.04318.27
5.6.140.0100.07718.15
5.6.130.0070.08018.17
5.6.120.0200.06021.05
5.6.110.0000.09720.99
5.6.100.0130.06721.01
5.6.90.0130.07721.02
5.6.80.0070.08020.41
5.6.70.0300.07020.36
5.5.350.0170.04320.45
5.5.340.0070.03717.95
5.5.330.0130.07320.46
5.5.320.0330.05720.25
5.5.310.0100.06320.25
5.5.300.0100.07317.95
5.5.290.0070.08317.95
5.5.280.0100.05320.90
5.5.270.0000.05720.84
5.5.260.0070.06020.65
5.5.250.0170.07320.59
5.5.240.0130.05320.16
5.4.450.0270.05725.16
5.4.440.0630.05025.16
5.4.430.0130.04725.16
5.4.420.0270.04725.16
5.4.410.0570.04025.16
5.4.400.0370.04725.16
5.4.390.0330.05725.16
5.4.380.0370.04025.16
5.4.370.0400.04325.16
5.4.360.0370.04025.16
5.4.350.0270.04325.16
5.4.340.0270.06025.16
5.4.320.0430.03025.16
5.4.310.0330.03025.16
5.4.300.0570.04325.16
5.4.290.0500.04725.16
5.4.280.0300.04725.16
5.4.270.0400.03725.16
5.4.260.0730.03725.16
5.4.250.0530.04725.16
5.4.240.0500.05025.16
5.4.230.0530.03725.16
5.4.220.0600.05725.16
5.4.210.0530.02325.16
5.4.200.0470.04725.16
5.4.190.0170.04025.16
5.4.180.0100.05025.16
5.4.170.0900.03325.16
5.4.160.0430.04025.16
5.4.150.0570.03325.16
5.4.140.0770.03725.16
5.4.130.0600.04325.16
5.4.120.0400.04025.16
5.4.110.0830.02725.16
5.4.100.0630.04025.16
5.4.90.0430.03325.16
5.4.80.0670.03025.16
5.4.70.0630.04025.16
5.4.60.0570.04325.16
5.4.50.0800.03025.16
5.4.40.0770.03725.16
5.4.30.0370.04725.16
5.4.20.0630.04325.16
5.4.10.0600.03025.16
5.4.00.0770.03725.16
5.3.290.0100.03025.16
5.3.280.0370.05325.16
5.3.270.0400.04725.16
5.3.260.0670.02725.16
5.3.250.0730.04325.16
5.3.240.0570.04025.16
5.3.230.0500.03725.16
5.3.220.0170.04025.16
5.3.210.0570.04725.16
5.3.200.0730.04025.16
5.3.190.0630.04325.16
5.3.180.0700.03025.16
5.3.170.0670.03725.16
5.3.160.0630.03725.16
5.3.150.0570.04325.16
5.3.140.0730.04325.16
5.3.130.0770.05325.16
5.3.120.0600.02325.16
5.3.110.0970.02725.16
5.3.100.0330.05025.16
5.3.90.0570.03325.16
5.3.80.0770.04325.16
5.3.70.0570.05025.16
5.3.60.0570.05025.16
5.3.50.0800.03325.16
5.3.40.0800.03725.16
5.3.30.0800.03725.16
5.3.20.0400.03025.16
5.3.10.0700.03725.16
5.3.00.0800.04025.16
5.2.170.0570.03025.16
5.2.160.0200.03325.16
5.2.150.0700.02725.16
5.2.140.0730.02725.16
5.2.130.0530.03025.16
5.2.120.0500.03725.16
5.2.110.0770.03025.16
5.2.100.0700.03025.16
5.2.90.0400.03325.16
5.2.80.0630.03725.16
5.2.70.0570.03325.16
5.2.60.0200.02725.16
5.2.50.0670.03325.16
5.2.40.0470.03025.16
5.2.30.0470.02725.16
5.2.20.0500.03025.16
5.2.10.0300.02725.16
5.2.00.0330.03725.16
5.1.60.0370.02725.16
5.1.50.0530.02325.16
5.1.40.0330.02325.16
5.1.30.0630.02025.16
5.1.20.0430.02725.16
5.1.10.0400.03025.16
5.1.00.0500.03025.16
5.0.50.0270.02325.16
5.0.40.0030.02325.16
5.0.30.0330.02725.16
5.0.20.0200.02325.16
5.0.10.0230.01725.16
5.0.00.0300.02325.16
4.4.90.0430.01325.16
4.4.80.0070.01725.16
4.4.70.0170.01725.16
4.4.60.0300.01325.16
4.4.50.0130.02025.16
4.4.40.0330.03025.16
4.4.30.0230.01325.16
4.4.20.0170.02025.16
4.4.10.0100.01325.16
4.4.00.0270.02325.16
4.3.110.0100.01725.16
4.3.100.0200.02025.16
4.3.90.0230.01325.16
4.3.80.0170.04025.16
4.3.70.0300.01725.16
4.3.60.0330.01725.16
4.3.50.0200.01725.16
4.3.40.0230.02325.16
4.3.30.0100.01325.16
4.3.20.0200.01025.16
4.3.10.0230.01325.16
4.3.00.0100.01725.16

preferences:
39.17 ms | 401 KiB | 5 Q