3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strpos(trim('Mr 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)
8.3.60.0100.00718.39
8.3.50.0170.00316.39
8.3.40.0110.00718.67
8.3.30.0080.00818.50
8.3.20.0040.00420.26
8.3.10.0090.00021.77
8.3.00.0080.00019.56
8.2.180.0240.00816.37
8.2.170.0070.00722.96
8.2.160.0080.00618.82
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0000.00721.18
8.2.120.0040.00426.35
8.2.110.0030.00620.70
8.2.100.0080.00417.72
8.2.90.0060.00319.09
8.2.80.0040.00417.97
8.2.70.0100.00017.46
8.2.60.0000.00817.80
8.2.50.0040.00418.10
8.2.40.0030.00520.64
8.2.30.0000.00720.79
8.2.20.0040.00417.80
8.2.10.0040.00417.98
8.2.00.0000.00817.88
8.1.280.0000.01425.92
8.1.270.0040.00422.10
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0000.00820.60
8.1.230.0040.00719.01
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0000.01017.23
8.1.190.0030.00517.10
8.1.180.0080.00018.10
8.1.170.0000.00719.02
8.1.160.0000.00818.89
8.1.150.0030.00618.67
8.1.140.0040.00419.44
8.1.130.0030.00618.82
8.1.120.0030.00317.22
8.1.110.0030.00617.29
8.1.100.0040.00417.21
8.1.90.0040.00417.21
8.1.80.0000.00717.37
8.1.70.0030.00317.32
8.1.60.0060.00317.34
8.1.50.0070.00017.43
8.1.40.0080.00017.24
8.1.30.0050.00317.41
8.1.20.0000.00817.45
8.1.10.0040.00417.41
8.1.00.0000.00717.29
8.0.300.0000.00720.19
8.0.290.0000.00716.63
8.0.280.0030.00318.24
8.0.270.0070.00017.03
8.0.260.0000.00616.59
8.0.250.0030.00316.72
8.0.240.0030.00316.84
8.0.230.0000.00916.78
8.0.220.0070.00016.77
8.0.210.0020.00516.71
8.0.200.0040.00416.70
8.0.190.0080.00016.80
8.0.180.0070.00016.66
8.0.170.0040.00416.77
8.0.160.0040.00316.67
8.0.150.0050.00316.60
8.0.140.0000.00716.73
8.0.130.0000.00513.20
8.0.120.0080.00016.61
8.0.110.0000.00716.71
8.0.100.0000.00716.60
8.0.90.0000.00816.59
8.0.80.0130.00316.63
8.0.70.0070.00016.64
8.0.60.0000.00716.57
8.0.50.0040.00416.75
8.0.30.0120.00816.73
8.0.20.0110.00917.40
8.0.10.0000.00716.71
8.0.00.0090.00916.67
7.4.330.0030.00315.55
7.4.320.0030.00316.50
7.4.300.0060.00016.41
7.4.290.0040.00416.37
7.4.280.0080.00016.41
7.4.270.0030.00316.39
7.4.260.0040.00316.50
7.4.250.0030.00516.50
7.4.240.0030.00516.53
7.4.230.0030.00316.62
7.4.220.0060.01616.42
7.4.210.0080.00816.56
7.4.200.0070.00016.50
7.4.160.0060.00916.38
7.4.150.0170.00317.40
7.4.140.0070.01017.86
7.4.130.0110.00816.39
7.4.120.0090.01016.29
7.3.330.0050.00012.95
7.3.320.0030.00312.92
7.3.310.0000.00716.04
7.3.300.0030.00316.00
7.3.290.0060.00816.17
7.3.280.0090.01016.23
7.3.270.0130.00317.40
7.3.260.0150.00316.20
7.3.250.0060.01416.28
7.3.240.0100.01016.31

preferences:
52.9 ms | 401 KiB | 5 Q