3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strpos(trim('Mr To Whom It May Concern'), '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)
8.3.60.0140.00018.18
8.3.50.0120.00916.27
8.3.40.0120.00318.42
8.3.30.0110.00418.45
8.3.20.0040.00420.21
8.3.10.0070.00321.74
8.3.00.0030.00619.66
8.2.180.0140.00716.38
8.2.170.0110.00422.96
8.2.160.0140.00719.00
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00019.14
8.2.120.0040.00426.35
8.2.110.0030.00620.11
8.2.100.0030.00917.66
8.2.90.0000.00818.92
8.2.80.0000.00817.97
8.2.70.0000.00817.38
8.2.60.0040.00417.91
8.2.50.0050.00318.10
8.2.40.0080.00020.64
8.2.30.0040.00419.11
8.2.20.0000.00717.91
8.2.10.0000.00817.80
8.2.00.0040.00417.80
8.1.280.0040.01125.92
8.1.270.0080.00022.10
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00320.83
8.1.230.0030.00719.15
8.1.220.0080.00017.74
8.1.210.0030.00518.77
8.1.200.0040.00417.11
8.1.190.0000.00817.10
8.1.180.0030.00618.10
8.1.170.0090.00018.50
8.1.160.0030.00318.95
8.1.150.0060.00318.81
8.1.140.0050.00319.42
8.1.130.0030.00318.78
8.1.120.0030.00517.38
8.1.110.0040.00417.25
8.1.100.0070.00017.33
8.1.90.0080.00017.20
8.1.80.0000.00717.26
8.1.70.0070.00017.27
8.1.60.0000.00817.49
8.1.50.0040.00417.38
8.1.40.0030.00617.20
8.1.30.0080.00017.54
8.1.20.0030.00617.57
8.1.10.0040.00417.40
8.1.00.0040.00417.25
8.0.300.0040.00418.77
8.0.290.0070.00016.58
8.0.280.0030.00318.21
8.0.270.0000.00717.03
8.0.260.0040.00418.59
8.0.250.0070.00016.70
8.0.240.0030.00316.84
8.0.230.0040.00416.82
8.0.220.0000.00716.65
8.0.210.0040.00416.66
8.0.200.0030.00316.70
8.0.190.0060.00316.74
8.0.180.0070.00016.84
8.0.170.0070.00016.66
8.0.160.0040.00416.84
8.0.150.0000.00716.80
8.0.140.0000.00716.67
8.0.130.0030.00313.14
8.0.120.0000.00816.70
8.0.110.0040.00416.62
8.0.100.0070.00016.61
8.0.90.0040.00416.57
8.0.80.0040.01416.73
8.0.70.0000.00716.66
8.0.60.0000.00816.75
8.0.50.0070.00016.79
8.0.30.0080.00916.78
8.0.20.0110.00817.40
8.0.10.0030.00516.79
8.0.00.0110.00716.67
7.4.330.0000.00615.55
7.4.320.0000.00616.41
7.4.300.0030.00316.37
7.4.290.0030.00316.45
7.4.280.0000.00816.51
7.4.270.0030.00316.47
7.4.260.0070.00016.41
7.4.250.0080.00016.36
7.4.240.0030.00516.42
7.4.230.0030.00316.61
7.4.220.0030.01616.38
7.4.210.0000.01416.61
7.4.200.0070.00016.34
7.4.160.0110.00516.35
7.4.150.0090.00917.40
7.4.140.0110.01017.86
7.4.130.0090.01216.36
7.4.120.0070.01316.38
7.3.330.0000.00512.97
7.3.320.0000.00513.06
7.3.310.0070.00016.20
7.3.300.0000.00715.99
7.3.290.0040.01216.22
7.3.280.0090.00616.17
7.3.270.0120.00617.40
7.3.260.0140.01116.30
7.3.250.0100.00716.44
7.3.240.0140.00716.30

preferences:
45.82 ms | 401 KiB | 5 Q