3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $b = &$a; $b = 2; $c = 3; $b = &$c; $b = 4; var_dump($a, $b, $c);

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)
8.3.70.0160.00018.55
8.3.60.0120.00616.50
8.3.50.0110.00717.82
8.3.40.0100.00720.37
8.3.30.0070.00718.65
8.3.20.0040.00424.18
8.3.10.0000.00824.66
8.3.00.0040.00426.16
8.2.190.0110.00416.63
8.2.180.0090.01225.92
8.2.170.0070.00718.83
8.2.160.0140.00322.96
8.2.150.0000.00825.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00019.77
8.2.110.0030.00620.35
8.2.100.0040.00717.72
8.2.90.0040.00417.63
8.2.80.0040.00418.64
8.2.70.0040.00417.38
8.2.60.0060.00317.38
8.2.50.0040.00417.98
8.2.40.0050.00319.76
8.2.30.0040.00418.05
8.2.20.0070.00020.33
8.2.10.0000.00717.52
8.2.00.0040.00419.04
8.1.280.0060.00925.92
8.1.270.0040.00423.99
8.1.260.0050.00326.35
8.1.250.0030.00628.09
8.1.240.0060.00323.92
8.1.230.0040.00719.16
8.1.220.0030.00518.50
8.1.210.0080.00018.77
8.1.200.0000.00917.23
8.1.190.0030.00517.00
8.1.180.0050.00318.10
8.1.170.0020.00517.62
8.1.160.0070.00018.76
8.1.150.0050.00218.56
8.1.140.0080.00017.36
8.1.130.0000.00718.69
8.1.120.0030.00617.36
8.1.110.0030.00517.27
8.1.100.0040.00417.43
8.1.90.0040.00417.33
8.1.80.0000.00917.43
8.1.70.0030.00317.38
8.1.60.0040.00417.51
8.1.50.0030.00517.46
8.1.40.0000.00717.49
8.1.30.0040.00417.51
8.1.20.0080.00017.61
8.1.10.0080.00317.43
8.1.00.0210.00317.20
8.0.300.0040.00419.67
8.0.290.0040.00416.75
8.0.280.0070.00018.36
8.0.270.0030.00316.82
8.0.260.0030.00318.32
8.0.250.0030.00316.89
8.0.240.0000.00616.90
8.0.230.0000.00716.91
8.0.220.0000.00916.79
8.0.210.0030.00316.85
8.0.200.0060.00316.84
8.0.190.0040.00816.91
8.0.180.0000.00716.80
8.0.170.0090.00016.82
8.0.160.0000.00716.91
8.0.150.0070.00016.78
8.0.140.0130.00616.80
8.0.130.0120.00916.78
8.0.120.0160.00616.81
8.0.110.0090.00916.81
8.0.100.0130.00616.71
8.0.90.0130.00616.62
8.0.80.0120.00616.73
8.0.70.0150.00516.81
8.0.60.0160.00316.66
8.0.50.0170.00316.65
8.0.30.0190.00016.64
8.0.20.0110.00816.93
8.0.10.0170.00316.79
8.0.00.0080.00416.95
7.4.330.0030.00315.55
7.4.320.0000.00716.30
7.4.300.0060.00016.56
7.4.290.0030.00316.48
7.4.280.0020.00516.43
7.4.270.0040.00616.42
7.4.260.0190.00216.48
7.4.250.0130.00916.34
7.4.240.0120.00916.43
7.4.230.0190.00316.32
7.4.220.0160.00316.40
7.4.210.0100.01016.48
7.4.200.0160.00316.22
7.4.190.0140.00616.36
7.4.180.0150.00616.53
7.4.160.0150.00416.46
7.4.150.0190.00016.44
7.4.140.0150.00416.36
7.4.130.0130.00416.15
7.4.120.0200.00016.24
7.4.110.0160.00016.37
7.4.100.0120.00416.49
7.4.90.0110.00416.36
7.4.80.0150.00416.26
7.4.70.0160.00316.19
7.4.60.0090.01016.13
7.4.50.0150.00416.20
7.4.40.0090.00916.28
7.4.30.0110.00616.27
7.4.20.0150.00316.16
7.4.10.0100.00816.28
7.4.00.0090.01216.29
7.3.330.0120.00816.10
7.3.320.0180.00415.88
7.3.310.0130.01015.94
7.3.300.0090.00916.01
7.3.290.0140.00716.11
7.3.280.0170.00315.96
7.3.270.0130.00416.22
7.3.260.0100.00616.05
7.3.250.0160.00315.94
7.3.240.0150.00516.11
7.3.230.0120.00816.04
7.3.220.0200.00315.83
7.3.210.0230.00015.98
7.3.200.0190.00616.14
7.3.190.0210.00215.87
7.3.180.0210.00416.06
7.3.170.0150.00516.08
7.3.160.0190.00315.86
7.3.150.0160.00315.95
7.3.140.0130.00916.01
7.3.130.0180.00715.90

preferences:
50.27 ms | 401 KiB | 5 Q