3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strpos(trim('Mr To Whom It May Concern'), 'May Concern') !== false);

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)
8.3.60.0140.00318.43
8.3.50.0110.01116.23
8.3.40.0120.00318.41
8.3.30.0070.00718.54
8.3.20.0050.00220.25
8.3.10.0070.00421.80
8.3.00.0040.00419.67
8.2.180.0100.00716.34
8.2.170.0110.00422.96
8.2.160.0140.00018.95
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0080.00019.32
8.2.120.0000.00726.35
8.2.110.0000.00920.52
8.2.100.0080.00317.59
8.2.90.0050.00318.84
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0000.00817.93
8.2.50.0000.00818.10
8.2.40.0000.00720.48
8.2.30.0040.00418.98
8.2.20.0000.00717.78
8.2.10.0040.00417.98
8.2.00.0000.00717.80
8.1.280.0070.01125.92
8.1.270.0040.00422.05
8.1.260.0000.00726.35
8.1.250.0000.00728.09
8.1.240.0000.00920.82
8.1.230.0030.00719.15
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0030.00617.25
8.1.190.0030.00616.98
8.1.180.0040.00418.10
8.1.170.0030.00618.46
8.1.160.0000.00819.00
8.1.150.0060.00318.68
8.1.140.0040.00419.42
8.1.130.0000.00818.76
8.1.120.0030.00317.25
8.1.110.0090.00017.20
8.1.100.0040.00417.22
8.1.90.0040.00417.38
8.1.80.0030.00317.32
8.1.70.0030.00317.26
8.1.60.0040.00417.43
8.1.50.0060.00317.38
8.1.40.0000.00917.23
8.1.30.0040.00417.39
8.1.20.0030.00617.52
8.1.10.0050.00317.41
8.1.00.0040.00417.31
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.34
8.0.270.0040.00417.12
8.0.260.0030.00318.48
8.0.250.0030.00316.88
8.0.240.0000.00716.80
8.0.230.0030.00716.85
8.0.220.0030.00316.79
8.0.210.0070.00016.74
8.0.200.0000.00616.77
8.0.190.0030.00516.86
8.0.180.0030.00316.76
8.0.170.0000.00716.79
8.0.160.0000.00716.65
8.0.150.0050.00316.71
8.0.140.0040.00416.63
8.0.130.0030.00313.14
8.0.120.0000.00716.73
8.0.110.0030.00316.75
8.0.100.0040.00416.64
8.0.90.0000.00816.64
8.0.80.0130.00316.74
8.0.70.0040.00416.65
8.0.60.0040.00416.66
8.0.50.0000.00716.80
8.0.30.0090.00816.75
8.0.20.0130.00817.40
8.0.10.0030.00316.95
8.0.00.0070.01016.64
7.4.330.0000.00715.55
7.4.320.0060.00016.51
7.4.300.0000.00616.49
7.4.290.0030.00316.49
7.4.280.0080.00016.42
7.4.270.0000.00716.54
7.4.260.0000.00716.52
7.4.250.0040.00416.48
7.4.240.0070.00016.41
7.4.230.0030.00316.61
7.4.220.0140.01116.46
7.4.210.0070.00716.45
7.4.200.0000.00716.59
7.4.160.0110.00716.61
7.4.150.0060.01317.40
7.4.140.0120.00717.86
7.4.130.0120.00616.54
7.4.120.0090.01016.32
7.3.330.0050.00013.05
7.3.320.0030.00313.00
7.3.310.0040.00416.26
7.3.300.0000.00716.11
7.3.290.0070.00916.20
7.3.280.0060.01116.19
7.3.270.0170.00017.40
7.3.260.0120.00716.21
7.3.250.0100.00816.37
7.3.240.0080.00816.32

preferences:
33.31 ms | 400 KiB | 5 Q