3v4l.org

run code in 300+ PHP versions simultaneously
<?php $null = null; $a = is_null($null); assert(assertion: $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)
8.3.60.0070.00718.43
8.3.50.0100.00717.89
8.3.40.0120.00921.86
8.3.30.0070.00718.63
8.3.20.0040.00424.18
8.3.10.0050.00324.66
8.3.00.0080.00026.16
8.2.180.0130.00325.92
8.2.170.0100.00318.96
8.2.160.0030.01022.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00419.69
8.2.110.0050.00520.55
8.2.100.0070.00319.10
8.1.280.0100.00325.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0110.00028.09
8.1.240.0000.01118.75
8.1.230.0060.00320.27
7.4.120.0210.00816.39
7.4.110.0250.00816.45
7.4.100.0210.00616.38
7.4.90.0250.00616.30
7.4.80.0200.00716.20
7.4.70.0100.02016.32
7.4.60.0230.00816.25
7.4.50.0250.00416.17
7.4.40.0210.00816.60
7.4.30.0210.01316.26
7.4.20.0260.00916.55
7.4.10.0090.01816.48
7.4.00.0040.01516.00
7.3.240.0110.00616.30
7.3.230.0260.00916.14
7.3.220.0130.01316.30
7.3.210.0220.01116.39
7.3.200.0220.00616.32
7.3.190.0230.00916.41
7.3.180.0240.00916.20
7.3.170.0210.01316.28
7.3.160.0250.01416.38
7.3.150.0290.00616.38
7.3.140.0210.00716.25
7.3.130.0230.00416.29
7.3.120.0230.00716.32
7.3.110.0230.00516.11
7.3.100.0150.01516.19
7.3.90.0160.01316.24
7.3.80.0250.00616.38
7.3.70.0230.00816.10
7.3.60.0150.01516.11
7.3.50.0180.00916.24
7.3.40.0180.01116.16
7.3.30.0260.00516.22
7.3.20.0140.01716.31
7.3.10.0200.01015.89
7.3.00.0180.01216.16
7.2.340.0190.01016.30
7.2.330.0280.00616.06
7.2.320.0220.00716.51
7.2.310.0160.01116.34
7.2.300.0230.00316.29
7.2.290.0300.00316.21
7.2.280.0240.00916.44
7.2.270.0230.01016.27
7.2.260.0180.00916.29
7.2.250.0270.00316.41
7.2.240.0110.01716.52
7.2.230.0180.01216.35
7.2.220.0230.00716.52
7.2.210.0170.01116.22
7.2.200.0230.00616.30
7.2.190.0240.00716.42
7.2.180.0240.00316.20
7.2.170.0240.00616.20
7.2.160.0230.00616.38
7.2.150.0210.01016.46
7.2.140.0200.00816.34
7.2.130.0130.01816.30
7.2.120.0210.00916.37
7.2.110.0230.00716.36
7.2.100.0270.00216.39
7.2.90.0160.01216.30
7.2.80.0150.01516.13
7.2.70.0100.02016.25
7.2.60.0180.01116.29
7.2.50.0210.01216.34
7.2.40.0290.00316.26
7.2.30.0300.01316.47
7.2.20.0120.02016.37
7.2.10.0230.00916.40
7.2.00.0230.01016.42

preferences:
52.19 ms | 400 KiB | 5 Q