3v4l.org

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

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)
8.3.60.0070.00718.42
8.3.50.0070.01016.39
8.3.40.0210.00018.41
8.3.30.0070.01118.45
8.3.20.0020.00520.16
8.3.10.0070.00321.73
8.3.00.0000.00819.66
8.2.180.0110.00716.50
8.2.170.0000.01522.96
8.2.160.0140.00718.82
8.2.150.0080.00024.18
8.2.140.0050.00224.66
8.2.130.0040.00419.21
8.2.120.0050.00326.35
8.2.110.0060.00322.38
8.2.100.0040.00817.66
8.2.90.0040.00418.96
8.2.80.0030.00617.97
8.2.70.0070.00317.50
8.2.60.0040.00417.91
8.2.50.0000.00918.10
8.2.40.0040.00420.41
8.2.30.0040.00420.79
8.2.20.0000.00717.81
8.2.10.0000.00718.03
8.2.00.0000.00817.79
8.1.280.0090.01225.92
8.1.270.0040.00422.19
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00619.01
8.1.230.0000.01119.02
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0060.00317.10
8.1.190.0040.00417.10
8.1.180.0050.00218.10
8.1.170.0070.00018.80
8.1.160.0070.00018.84
8.1.150.0110.00018.75
8.1.140.0000.00819.43
8.1.130.0040.00418.75
8.1.120.0000.00717.24
8.1.110.0040.00417.29
8.1.100.0080.00017.20
8.1.90.0080.00017.18
8.1.80.0040.00417.36
8.1.70.0030.00317.30
8.1.60.0040.00417.35
8.1.50.0060.00317.39
8.1.40.0000.00817.41
8.1.30.0050.00317.62
8.1.20.0030.00617.35
8.1.10.0080.00017.27
8.1.00.0000.00817.29
8.0.300.0030.00618.77
8.0.290.0000.00716.58
8.0.280.0070.00018.18
8.0.270.0000.00717.13
8.0.260.0030.00318.48
8.0.250.0000.00616.83
8.0.240.0000.00816.82
8.0.230.0070.00316.68
8.0.220.0080.00016.73
8.0.210.0000.00716.63
8.0.200.0060.00016.81
8.0.190.0040.00416.68
8.0.180.0000.00716.79
8.0.170.0040.00416.67
8.0.160.0030.00316.85
8.0.150.0050.00216.57
8.0.140.0040.00416.76
8.0.130.0030.00313.14
8.0.120.0020.00516.70
8.0.110.0050.00316.65
8.0.100.0050.00316.55
8.0.90.0070.00016.71
8.0.80.0110.01116.82
8.0.70.0040.00416.79
8.0.60.0000.00716.76
8.0.50.0040.00416.65
8.0.30.0100.01017.01
8.0.20.0110.00717.40
8.0.10.0040.00416.71
8.0.00.0100.01416.71
7.4.330.0070.00015.55
7.4.320.0000.00616.35
7.4.300.0000.00716.37
7.4.290.0070.00016.45
7.4.280.0000.00716.46
7.4.270.0000.00716.48
7.4.260.0000.00816.44
7.4.250.0000.00816.39
7.4.240.0000.00816.37
7.4.230.0000.00716.24
7.4.220.0040.01416.55
7.4.210.0070.00716.40
7.4.200.0070.00016.36
7.4.160.0120.00916.35
7.4.150.0100.01417.40
7.4.140.0050.01217.86
7.4.130.0040.01516.43
7.4.120.0120.00816.34
7.3.330.0000.00512.96
7.3.320.0050.00013.11
7.3.310.0040.00416.08
7.3.300.0060.00016.15
7.3.290.0080.00616.13
7.3.280.0110.00616.14
7.3.270.0110.00617.40
7.3.260.0100.01116.22
7.3.250.0110.00716.28
7.3.240.0100.01016.27

preferences:
37.56 ms | 400 KiB | 5 Q