3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1]; $b = &$a[0]; var_dump($a, $b);

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)
8.4.140.0100.01217.51
8.4.130.0080.01217.53
8.4.120.0130.00724.05
8.4.110.0030.00922.49
8.4.100.0100.00918.52
8.4.90.0170.00319.00
8.4.80.0100.01018.58
8.4.70.0040.00417.68
8.4.60.0130.00718.68
8.4.50.0110.00918.39
8.4.40.0130.00618.30
8.4.30.0110.00718.73
8.4.20.0130.00619.29
8.4.10.0040.00419.19
8.3.260.0120.00916.64
8.3.250.0090.01018.72
8.3.240.0100.00917.30
8.3.230.0110.00916.72
8.3.220.0130.00519.04
8.3.210.0100.01116.64
8.3.200.0060.00316.41
8.3.190.0080.00717.24
8.3.180.0100.00817.05
8.3.170.0110.00718.97
8.3.160.0160.00317.21
8.3.150.0080.00317.13
8.3.140.0100.00018.72
8.3.130.0040.00418.38
8.3.120.0060.00319.09
8.3.110.0030.00620.94
8.3.100.0080.00024.06
8.3.90.0080.00026.77
8.3.80.0060.00316.38
8.3.70.0120.00916.58
8.3.60.0360.00716.35
8.3.50.0110.00616.61
8.3.40.0220.01017.19
8.3.30.0270.00617.18
8.3.20.0220.00917.31
8.3.10.0210.00917.31
8.3.00.0270.00717.18
8.2.290.0130.00420.47
8.2.280.0120.00618.36
8.2.270.0150.00317.20
8.2.260.0140.00418.17
8.2.250.0070.01316.44
8.2.240.0060.00318.88
8.2.230.0130.00322.58
8.2.220.0090.00037.54
8.2.210.0070.01026.77
8.2.200.0040.00416.50
8.2.190.0100.01016.58
8.2.180.0060.00916.44
8.2.170.0290.00517.50
8.2.160.0230.01218.31
8.2.150.0250.01117.30
8.2.140.0270.00817.13
8.2.130.0310.00717.31
8.2.120.0270.00817.31
8.2.110.0340.00617.31
8.2.100.0210.01117.25
8.2.90.0230.01017.44
8.2.80.0260.00917.41
8.2.70.0240.01117.31
8.2.60.0270.00517.25
8.2.50.0280.00517.48
8.2.40.0220.00817.36
8.2.30.0240.00717.38
8.2.20.0210.00917.17
8.2.10.0250.00617.24
8.2.00.0230.00817.44
8.1.330.0100.00922.04
8.1.320.0120.00517.73
8.1.310.0090.00918.21
8.1.300.0030.00617.72
8.1.290.0060.00318.88
8.1.280.0330.00316.32
8.1.270.0300.00717.06
8.1.260.0210.01417.12
8.1.250.0350.00317.18
8.1.240.0250.00717.13
8.1.230.0240.00917.10
8.1.220.0270.00617.00
8.1.210.0230.00816.80
8.1.200.0290.00516.93
8.1.190.0180.01016.94
8.1.180.0180.01116.92
8.1.170.0220.00817.05
8.1.160.0200.01117.22
8.1.150.0190.00917.22
8.1.140.0270.00616.81
8.1.130.0220.00916.98
8.1.120.0270.00717.13
8.1.110.0250.00517.00
8.1.100.0260.00516.94
8.1.90.0210.01117.06
8.1.80.0260.00716.99
8.1.70.0280.00617.17
8.1.60.0270.00717.06
8.1.50.0280.00517.25
8.1.40.0190.01317.25
8.1.30.0270.00517.19
8.1.20.0230.00917.13
8.1.10.0300.00316.98
8.1.00.0290.00516.94

preferences:
69.05 ms | 403 KiB | 5 Q