3v4l.org

run code in 300+ PHP versions simultaneously
<?php function readonly() { } $var = readonly /* comment */ ();

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)
8.3.110.0030.00520.94
8.3.100.0130.00716.62
8.3.90.0050.00326.77
8.3.80.0040.00416.38
8.3.70.0110.00716.58
8.3.60.0180.00018.31
8.3.50.0120.00919.88
8.3.40.0190.00018.53
8.3.30.0110.00418.83
8.3.20.0040.00424.18
8.3.10.0030.00624.66
8.3.00.0050.00326.16
8.2.230.0000.00822.58
8.2.220.0170.00024.06
8.2.210.0070.01026.77
8.2.200.0040.00416.75
8.2.190.0000.01516.58
8.2.180.0060.01225.92
8.2.170.0110.00418.85
8.2.160.0100.00322.96
8.2.150.0000.00725.66
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0060.00326.16
8.2.110.0070.00322.25
8.2.100.0040.00717.66
8.2.90.0050.00217.63
8.2.80.0000.00818.66
8.2.70.0040.00417.48
8.2.60.0030.00617.50
8.2.50.0080.00017.98
8.2.40.0050.00318.22
8.2.30.0000.00718.05
8.2.20.0040.00420.29
8.2.10.0040.00417.86
8.2.00.0040.00419.23
8.1.290.0060.00330.84
8.1.280.0140.00325.92
8.1.270.0000.00723.99
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0030.00623.67
8.1.230.0080.00319.22
8.1.220.0070.00017.74
8.1.210.0080.00018.77
8.1.200.0030.00517.22
8.1.190.0090.00317.22
8.1.180.0030.00618.10
8.1.170.0040.00417.62
8.1.160.0060.00318.65
8.1.150.0040.00418.48
8.1.140.0020.00517.28
8.1.130.0030.00318.66
8.1.120.0000.00817.25
8.1.110.0080.00017.30
8.1.100.0000.00717.30
8.1.90.0000.00717.31
8.1.80.0030.00717.29
8.1.70.0050.00317.18
8.1.60.0000.00817.43
8.1.50.0190.00617.30
8.1.40.0210.00217.23
8.1.30.0200.00517.38
8.1.20.0150.00417.44
8.1.10.0140.00217.31
8.1.00.0130.00517.27
8.0.300.0000.00718.77
8.0.290.0050.00316.63
8.0.280.0050.00318.33
8.0.270.0000.00816.69
8.0.260.0030.00318.42
8.0.250.0030.00316.86
8.0.240.0000.00716.87
8.0.230.0000.00716.84
8.0.220.0050.00216.69
8.0.210.0040.00416.77
8.0.200.0040.00416.89
8.0.190.0040.00416.88
8.0.180.0190.00216.69
8.0.170.0120.00516.82
8.0.160.0110.00316.73
8.0.150.0090.00616.66
8.0.140.0060.00816.68
8.0.130.0140.00216.81
8.0.120.0120.00316.72
8.0.110.0150.00216.81
8.0.100.0130.00316.75
8.0.90.0150.00216.67
8.0.80.0130.00516.81
8.0.70.0090.00616.79
8.0.60.0090.00816.73
8.0.50.0150.00316.75
8.0.30.0100.00716.68
8.0.20.0130.00316.85
8.0.10.0080.00916.91
7.4.330.0000.00515.55
7.4.320.0030.00316.53
7.4.300.0000.00616.58
7.4.290.0070.00716.48
7.4.280.0160.00416.52
7.4.270.0100.00716.52
7.4.260.0130.00616.49
7.4.250.0130.00716.53
7.4.240.0110.00816.50
7.4.230.0170.00316.41
7.4.220.0100.00216.56
7.4.210.0110.00216.46
7.4.200.0090.00516.44
7.4.190.0090.00616.65
7.4.180.0070.00516.58
7.4.160.0020.00916.53
7.4.150.0100.00316.45
7.4.140.0110.00616.44
7.4.130.0110.00616.34
7.4.120.0110.00416.38
7.4.110.0130.00316.27
7.4.100.0100.00416.48
7.4.90.0120.00216.50
7.4.80.0120.00416.43
7.4.70.0120.00516.33
7.4.60.0150.00416.26
7.4.50.0110.00416.37
7.4.40.0140.00316.19
7.4.30.0140.00416.35
7.4.20.0130.00416.33
7.4.10.0170.00316.30
7.4.00.0110.00816.29

preferences:
27.58 ms | 403 KiB | 5 Q