3v4l.org

run code in 300+ PHP versions simultaneously
<?php //declare(strict_types=1); var_dump($test === null);

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)
8.4.120.0120.00723.90
8.4.110.0070.00323.42
8.4.100.0090.00918.76
8.4.90.0130.00718.69
8.4.80.0020.00618.45
8.4.70.0050.00319.52
8.4.60.0060.00518.75
8.4.50.0120.00818.57
8.4.40.0170.00317.90
8.4.30.0090.00918.63
8.4.20.0060.00321.59
8.4.10.0160.00319.35
8.3.250.0120.00718.59
8.3.240.0100.00520.37
8.3.230.0100.00916.87
8.3.220.0050.00418.73
8.3.210.0090.00916.51
8.3.200.0060.00516.80
8.3.190.0120.00718.95
8.3.180.0120.00816.64
8.3.170.0090.00920.58
8.3.160.0150.00318.43
8.3.150.0150.00017.05
8.3.140.0000.00816.61
8.3.130.0100.00016.52
8.3.120.0040.00420.44
8.3.110.0040.00418.13
8.3.100.0040.00416.74
8.3.90.0050.00326.77
8.3.80.0420.00630.84
8.3.70.0320.01630.84
8.3.60.0360.01130.84
8.3.50.0150.00430.84
8.3.40.0290.00430.84
8.3.30.0250.00930.84
8.3.20.0250.01330.84
8.3.10.0350.00330.84
8.3.00.0250.00830.84
8.2.290.0130.00620.50
8.2.280.0090.00818.23
8.2.270.0140.00417.07
8.2.260.0040.00416.61
8.2.250.0040.00418.47
8.2.240.0120.00416.51
8.2.230.0090.00920.94
8.2.220.0060.00324.06
8.2.210.0090.00926.77
8.2.200.0330.00930.84
8.2.190.0300.00630.84
8.2.180.0180.00030.84
8.2.170.0290.00630.84
8.2.160.0350.01330.84
8.2.150.0370.00430.84
8.2.140.0260.00330.84
8.2.130.0390.00730.84
8.2.120.0180.00430.84
8.2.110.0140.00530.84
8.2.100.0160.00330.84
8.2.90.0130.00630.84
8.2.80.0130.00830.84
8.2.70.0310.01030.84
8.2.60.0170.00530.84
8.2.50.0190.00030.84
8.2.40.0320.00730.84
8.2.30.0330.00330.84
8.2.20.0190.00430.84
8.2.10.0360.00430.84
8.2.00.0340.00030.84
8.1.330.0100.00921.91
8.1.320.0100.01016.18
8.1.310.0040.00416.55
8.1.300.0060.00317.90
8.1.290.0330.00630.84
8.1.280.0330.00730.84
8.1.270.0330.00330.84
8.1.260.0280.00930.84
8.1.250.0360.00730.84
8.1.240.0340.00330.84
8.1.230.0260.01530.84
8.1.220.0250.01430.84
8.1.210.0280.00930.84
8.1.200.0290.00730.84
8.1.190.0330.01130.84
8.1.180.0400.00430.84
8.1.170.0260.01530.84
8.1.160.0340.00430.84
8.1.150.0220.00930.84
8.1.140.0240.01030.84
8.1.130.0370.00330.84
8.1.120.0340.00330.84
8.1.110.0290.00830.84
8.1.100.0180.01830.84
8.1.90.0250.01330.84
8.1.80.0330.00430.84
8.1.70.0290.00730.84
8.1.60.0240.01030.84
8.1.50.0410.00630.84
8.1.40.0350.01030.84
8.1.30.0290.01330.84
8.1.20.0290.01330.84
8.1.10.0270.01430.84
8.1.00.0270.01030.84

preferences:
27.21 ms | 403 KiB | 5 Q