3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 0; $a = &$a; var_dump($a); $a = &$a; var_dump($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)
8.3.60.0110.00318.13
8.3.50.0100.00822.05
8.3.40.0070.00718.77
8.3.30.0140.00318.96
8.3.20.0150.00020.35
8.3.10.0080.00022.00
8.3.00.0040.00422.34
8.2.180.0140.00716.50
8.2.170.0070.00722.96
8.2.160.0110.00320.60
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0060.01326.16
8.2.120.0080.00019.15
8.2.110.0130.00722.29
8.2.100.0090.00317.78
8.2.90.0040.00419.05
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0040.00417.90
8.2.50.0080.00018.07
8.2.40.0000.00818.16
8.2.30.0000.00818.06
8.2.20.0060.00317.58
8.2.10.0030.00617.50
8.2.00.0040.00417.49
8.1.280.0110.00325.92
8.1.270.0110.00722.20
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0080.00023.97
8.1.230.0040.00719.16
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0000.00917.36
8.1.190.0050.00317.40
8.1.180.0080.00018.10
8.1.170.0060.00318.51
8.1.160.0040.00421.93
8.1.150.0030.00618.46
8.1.140.0070.00017.26
8.1.130.0000.00717.86
8.1.120.0030.00517.43
8.1.110.0050.00217.40
8.1.100.0000.00817.27
8.1.90.0050.00217.28
8.1.80.0040.00317.44
8.1.70.0000.00817.27
8.1.60.0080.00017.37
8.1.50.0000.00717.48
8.1.40.0040.00417.43
8.1.30.0000.00717.62
8.1.20.0030.00617.57
8.1.10.0000.00717.45
8.1.00.0000.00717.34
8.0.300.0000.00718.77
8.0.290.0050.00217.04
8.0.280.0000.00818.38
8.0.270.0000.00717.18
8.0.260.0030.00316.65
8.0.250.0000.00716.87
8.0.240.0030.00516.95
8.0.230.0000.00716.76
8.0.220.0000.00716.85
8.0.210.0000.00716.80
8.0.200.0020.00516.88
8.0.190.0030.00316.86
8.0.180.0070.00316.87
8.0.170.0040.00416.86
8.0.160.0040.00416.77
8.0.150.0040.00416.74
8.0.140.0040.00416.77
8.0.130.0000.00613.19
8.0.120.0000.00916.75
8.0.110.0040.00416.82
8.0.100.0030.00516.61
8.0.90.0070.00016.68
8.0.80.0040.01116.77
8.0.70.0050.00216.63
8.0.60.0000.00716.70
8.0.50.0040.00416.92
8.0.30.0130.00417.05
8.0.20.0080.01317.40
8.0.10.0000.00716.95
8.0.00.0110.00716.58
7.4.330.0000.00515.01
7.4.320.0030.00316.39
7.4.300.0030.00316.41
7.4.290.0000.00716.35
7.4.280.0040.00416.57
7.4.270.0030.00316.50
7.4.260.0070.00316.35
7.4.250.0000.00716.46
7.4.240.0030.00316.49
7.4.230.0070.00016.54
7.4.220.0100.01016.47
7.4.210.0100.00516.49
7.4.200.0070.00016.61
7.4.190.0030.00316.69
7.4.160.0080.00816.34
7.4.150.0090.00917.40
7.4.140.0120.00617.86
7.4.130.0070.01016.37
7.4.120.0030.01416.37
7.4.110.0170.00016.38
7.4.100.0220.00316.40
7.4.90.0160.00716.38
7.4.80.0030.01319.39
7.4.70.0110.00716.20
7.4.60.0090.00916.43
7.4.50.0030.00616.43
7.4.40.0070.00722.77
7.4.30.0080.00816.48
7.4.00.0020.00515.07
7.3.330.0050.00012.98
7.3.320.0000.00712.85
7.3.310.0030.00316.18
7.3.300.0070.00016.10
7.3.290.0060.00916.08
7.3.280.0080.00916.13
7.3.270.0100.00717.40
7.3.260.0130.00416.41
7.3.250.0090.00916.17
7.3.240.0100.00716.42
7.3.230.0130.00716.39
7.3.210.0060.01016.10
7.3.200.0120.00419.39
7.3.190.0070.01716.27
7.3.180.0030.01316.39
7.3.170.0110.01116.27
7.3.160.0110.01116.08
7.3.120.0040.01114.59
7.2.330.0130.00616.57
7.2.320.0100.01616.43
7.2.310.0080.00816.57
7.2.300.0060.01016.71
7.2.290.0130.00316.48
7.2.60.0040.01116.69
7.2.00.0060.00618.97
7.1.200.0030.01015.81
7.1.100.0000.01118.00
7.1.70.0050.00517.17
7.1.60.0130.00016.86
7.1.50.0100.01016.99
7.1.00.0070.07322.44
7.0.200.0060.00916.68
7.0.140.0000.07322.11
7.0.60.0100.05720.00
7.0.50.0130.05017.90
7.0.40.0000.09020.24
7.0.30.0400.04720.17
7.0.20.0330.07020.21
7.0.10.0070.05020.30
7.0.00.0130.07720.20
5.6.280.0000.07720.90
5.6.210.0000.08720.76
5.6.200.0100.04718.12
5.6.190.0000.05020.46
5.6.180.0270.06020.45
5.6.170.0100.05020.47
5.6.160.0030.04720.49
5.6.150.0000.04318.21
5.6.140.0100.05318.19
5.6.130.0000.06018.21
5.6.120.0030.05321.11
5.6.110.0070.08720.95
5.6.100.0100.08321.12
5.6.90.0170.03021.05
5.6.80.0100.04320.35
5.6.70.0100.08020.55
5.5.350.0130.07720.39
5.5.340.0070.07717.99
5.5.330.0070.08020.37
5.5.320.0200.04320.41
5.5.310.0200.08020.31
5.5.300.0070.08017.94
5.5.290.0170.03317.98
5.5.280.0170.04020.76
5.5.270.0130.06320.67
5.5.260.0100.07320.83
5.5.250.0100.08320.71
5.5.240.0100.07320.26
5.4.450.0330.06019.44
5.4.440.0400.05719.45
5.4.430.0030.06019.25
5.4.420.0130.05019.32
5.4.410.0130.05019.52
5.4.400.0800.00018.75
5.4.390.1000.00018.62
5.4.380.0230.05318.69
5.4.370.0200.05718.48
5.4.360.0270.05018.61
5.4.350.0230.05718.65
5.4.340.0300.04718.79
5.4.320.0080.03312.45
5.4.310.0070.03712.45
5.4.300.0060.03812.45
5.4.290.0070.03512.45
5.4.280.0070.03212.34
5.4.270.0030.05318.86
5.4.260.0130.04318.82
5.4.250.0100.04718.95
5.4.240.0130.06718.87
5.4.230.0100.05318.98
5.4.220.0000.06318.86
5.4.210.0030.05718.88
5.4.200.0070.05718.66
5.4.190.0100.04718.78
5.4.180.0070.05718.82
5.4.170.0070.05018.72
5.4.160.0100.04718.97
5.4.150.0130.05018.59
5.4.140.0100.05016.54
5.4.130.0070.04716.26
5.4.120.0170.04316.45
5.4.110.0130.05016.32
5.4.100.0100.04716.34
5.4.90.0100.05016.29
5.4.80.0130.05016.52
5.4.70.0130.04016.43
5.4.60.0170.03716.44
5.4.50.0130.04316.47
5.4.40.0100.04716.52
5.4.30.0100.05316.14
5.4.20.0170.06016.25
5.4.10.0170.06016.29
5.4.00.0100.06715.93
5.3.290.0090.03612.80
5.3.280.0130.06014.51
5.3.270.0030.06014.47
5.3.260.0100.04714.61
5.3.250.0100.05014.59
5.3.240.0070.05014.62
5.3.230.0070.06014.29
5.3.220.0200.04014.56
5.3.210.0130.04714.59
5.3.200.0130.05014.71
5.3.190.0100.05314.62
5.3.180.0000.05314.60
5.3.170.0070.05714.57
5.3.160.0070.05314.56
5.3.150.0130.04314.55
5.3.140.0030.05314.54
5.3.130.0130.04714.41
5.3.120.0030.05314.55
5.3.110.0170.05714.63
5.3.100.0070.05013.95
5.3.90.0100.04313.88
5.3.80.0100.04713.71
5.3.70.0170.05314.04
5.3.60.0070.05014.09
5.3.50.0070.05013.99
5.3.40.0030.05013.81
5.3.30.0000.05313.79
5.3.20.0000.05313.62
5.3.10.0100.04713.74
5.3.00.0070.07313.79
5.2.170.0070.04011.04
5.2.160.0030.04011.15
5.2.150.0070.04011.07
5.2.140.0070.04710.97
5.2.130.0100.04711.02
5.2.120.0100.03311.11
5.2.110.0000.04310.98
5.2.100.0030.04010.85
5.2.90.0030.04310.85
5.2.80.0030.04011.00
5.2.70.0000.04711.02
5.2.60.0130.03310.95
5.2.50.0030.04311.02
5.2.40.0000.04310.88
5.2.30.0070.04010.80
5.2.20.0030.05710.97
5.2.10.0070.03710.93
5.2.00.0030.04310.54
5.1.60.0000.0379.84
5.1.50.0030.03310.22
5.1.40.0030.0439.90
5.1.30.0030.03710.24
5.1.20.0100.03010.42
5.1.10.0000.03710.09
5.1.00.0030.04310.12
5.0.50.0070.0308.58
5.0.40.0000.0308.25
5.0.30.0070.0508.16
5.0.20.0100.0208.15
5.0.10.0030.0308.22
5.0.00.0070.0538.06
4.4.90.0030.0207.25
4.4.80.0000.0207.25
4.4.70.0030.0307.25
4.4.60.0000.0237.25
4.4.50.0070.0237.25
4.4.40.0000.0337.25
4.4.30.0000.0237.25
4.4.20.0070.0177.25
4.4.10.0000.0207.25
4.4.00.0030.0337.25
4.3.110.0030.0207.25
4.3.100.0000.0237.25
4.3.90.0030.0207.25
4.3.80.0130.0237.25
4.3.70.0100.0137.25
4.3.60.0030.0207.25
4.3.50.0030.0237.25
4.3.40.0070.0337.25
4.3.30.0030.0207.25
4.3.20.0030.0207.25
4.3.10.0000.0277.25
4.3.00.0030.0207.75

preferences:
43.24 ms | 401 KiB | 5 Q