3v4l.org

run code in 300+ PHP versions simultaneously
<?php $username = 'at'; var_dump(strpos($username,'_')); $username = 'at_wexemplo'; var_dump(strpos($username,'_'));

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)
8.3.60.0040.01116.63
8.3.50.0070.01021.98
8.3.40.0140.00018.67
8.3.30.0070.00718.96
8.3.20.0060.00920.29
8.3.10.0040.00421.81
8.3.00.0070.00417.46
8.2.180.0080.00816.38
8.2.170.0140.00722.96
8.2.160.0130.00020.39
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0040.00422.08
8.2.110.0000.01021.99
8.2.100.0110.00017.66
8.2.90.0070.00319.07
8.2.80.0000.00817.97
8.2.70.0060.00617.13
8.2.60.0000.00817.80
8.2.50.0000.00818.07
8.2.40.0040.00419.76
8.2.30.0040.00417.87
8.2.20.0040.00417.57
8.2.10.0080.00017.95
8.2.00.0000.00717.64
8.1.280.0070.00725.92
8.1.270.0030.00523.79
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0090.00020.84
8.1.230.0070.00419.00
8.1.220.0080.00017.74
8.1.210.0050.00218.77
8.1.200.0090.00017.22
8.1.190.0090.00017.22
8.1.180.0000.00818.10
8.1.170.0050.00318.66
8.1.160.0040.00421.89
8.1.150.0000.00818.48
8.1.140.0070.00017.26
8.1.130.0000.00717.89
8.1.120.0050.00317.33
8.1.110.0050.00317.41
8.1.100.0040.00417.46
8.1.90.0000.00717.31
8.1.80.0070.00017.27
8.1.70.0030.00317.37
8.1.60.0030.00517.56
8.1.50.0030.00717.48
8.1.40.0040.00417.45
8.1.30.0080.00017.39
8.1.20.0060.00317.48
8.1.10.0030.00617.37
8.1.00.0040.00417.36
8.0.300.0040.00418.77
8.0.290.0040.00417.05
8.0.280.0070.00018.34
8.0.270.0000.00717.07
8.0.260.0070.00017.24
8.0.250.0000.00716.90
8.0.240.0000.00716.87
8.0.230.0000.00716.88
8.0.220.0000.00716.72
8.0.210.0070.00016.82
8.0.200.0060.00016.88
8.0.190.0040.00416.91
8.0.180.0070.00016.86
8.0.170.0030.00516.87
8.0.160.0000.00816.85
8.0.150.0040.00416.66
8.0.140.0040.00416.70
8.0.130.0030.00313.24
8.0.120.0000.00816.81
8.0.110.0000.00716.80
8.0.100.0030.00516.64
8.0.90.0050.00216.72
8.0.80.0060.00916.84
8.0.70.0070.00016.89
8.0.60.0000.00716.64
8.0.50.0040.00416.81
8.0.30.0070.01117.01
8.0.20.0120.00717.40
8.0.10.0000.00716.81
8.0.00.0100.00816.64
7.4.330.0000.00515.09
7.4.320.0030.00316.52
7.4.300.0030.00616.49
7.4.290.0000.00716.43
7.4.280.0000.00716.51
7.4.270.0040.00316.36
7.4.260.0020.00516.48
7.4.250.0070.00016.27
7.4.240.0030.00416.53
7.4.230.0070.00016.33
7.4.220.0030.01416.65
7.4.210.0090.00616.53
7.4.200.0050.00216.52
7.4.190.0000.00716.41
7.4.160.0090.00916.42
7.4.150.0100.01417.40
7.4.140.0140.00317.86
7.4.130.0060.01116.33
7.4.120.0110.00616.32
7.4.110.0180.00716.46
7.4.100.0110.00816.46
7.4.90.0100.00716.44
7.4.80.0110.01919.39
7.4.70.0060.01316.54
7.4.60.0130.00416.33
7.4.50.0000.00916.30
7.4.40.0080.00816.42
7.4.30.0130.00316.36
7.4.00.0030.01315.14
7.3.330.0050.00012.89
7.3.320.0030.00312.88
7.3.310.0040.00416.07
7.3.300.0000.00816.16
7.3.290.0150.00616.30
7.3.280.0130.00416.11
7.3.270.0210.00317.40
7.3.260.0190.00316.03
7.3.250.0040.01316.25
7.3.240.0100.00616.36
7.3.230.0120.00416.39
7.3.210.0170.00016.57
7.3.200.0060.01719.39
7.3.190.0160.00616.27
7.3.180.0070.00716.03
7.3.170.0120.00316.32
7.3.160.0120.00616.20
7.3.120.0040.00714.91
7.2.330.0170.00716.32
7.2.320.0090.00916.42
7.2.310.0060.01516.19
7.2.300.0070.01016.25
7.2.290.0060.01216.36
7.2.00.0000.01219.23
7.1.100.0210.01017.33
7.1.70.0090.00416.95
7.1.60.0040.00819.46
7.1.50.0090.01216.80
7.1.00.0030.07322.36
7.0.200.0000.00716.40
7.0.140.0030.06722.14
7.0.60.0100.06019.77
7.0.50.0100.06717.87
7.0.40.0030.08020.02
7.0.30.0300.07320.28
7.0.20.0230.08020.18
7.0.10.0100.07720.30
7.0.00.0200.07320.20
5.6.280.0070.07021.07
5.6.210.0070.07720.50
5.6.200.0030.05718.11
5.6.190.0030.04320.39
5.6.180.0070.09020.62
5.6.170.0270.03720.42
5.6.160.0100.08020.52
5.6.150.0100.05718.14
5.6.140.0170.06718.22
5.6.130.0070.05318.20
5.6.120.0270.03720.96
5.6.110.0170.07321.13
5.6.100.0130.04021.00
5.6.90.0070.04721.00
5.6.80.0030.04020.49
5.5.350.4030.03720.37
5.5.340.0030.07017.93
5.5.330.0030.05320.41
5.5.320.0200.04720.23
5.5.310.0230.07320.29
5.5.300.0030.08317.91
5.5.290.0000.08317.95
5.5.280.0000.05020.86
5.5.270.0030.05320.66
5.5.260.0130.07720.95
5.5.250.0030.04320.47
5.5.240.0030.03320.36
5.4.450.0330.07019.49
5.4.440.0230.05319.61
5.4.430.0070.05719.46
5.4.420.0130.05719.52
5.4.410.0100.06019.28
5.4.400.0270.04319.32
5.4.390.0200.07318.99
5.4.380.0300.05318.61
5.4.370.0330.04718.56
5.4.360.0430.04318.74
5.4.350.0230.06018.66
5.4.340.0430.05018.65
5.4.320.0070.05212.46
5.4.310.0090.05012.45
5.4.300.0060.04012.45
5.4.290.0180.12412.43
5.4.280.0080.03812.33
5.4.270.0080.04312.33
5.4.260.0100.04712.33
5.4.250.0110.07112.33
5.4.240.0120.04212.33
5.4.230.0100.06012.32
5.4.220.0070.04612.32
5.4.210.0180.11412.32
5.4.200.0170.07912.32
5.4.190.0060.05112.32
5.4.180.0070.06412.32
5.4.170.0150.08112.33
5.4.160.0130.07312.32
5.4.150.0110.07212.32
5.4.140.0220.10312.01
5.4.130.0170.07411.99
5.4.120.0140.08011.95
5.4.110.0110.07011.95
5.4.100.0190.07011.95
5.4.90.0140.06711.95
5.4.80.0100.05011.95
5.4.70.0060.05011.94
5.4.60.0150.04911.95
5.4.50.0120.05111.94
5.4.40.0140.07011.93
5.4.30.0100.05111.93
5.4.20.0100.07111.93
5.4.10.0130.05711.93
5.4.00.0120.04711.42
5.3.290.0080.04912.80
5.3.280.0150.05112.71
5.3.270.0110.04212.72
5.3.260.0070.04512.72
5.3.250.0100.04312.72
5.3.240.0140.04812.72
5.3.230.0100.07812.71
5.3.220.0110.05812.68
5.3.210.0080.04412.68
5.3.200.0080.03812.68
5.3.190.0080.04212.67
5.3.180.0070.04412.67
5.3.170.0060.04712.67
5.3.160.0110.05312.68
5.3.150.0070.03912.67
5.3.140.0040.04212.66
5.3.130.0150.03612.66
5.3.120.0060.05112.66
5.3.110.0060.04212.66
5.3.100.0050.04312.12
5.3.90.0070.04012.09
5.3.80.0110.04112.08
5.3.70.0080.05112.07
5.3.60.0110.04412.06
5.3.50.0080.04912.00
5.3.40.0070.04412.00
5.3.30.0040.05211.94
5.3.20.0150.08311.72
5.3.10.0170.07211.69
5.3.00.0070.06611.68
5.2.170.0060.0349.18
5.2.160.0070.0339.18
5.2.150.0050.0359.18
5.2.140.0050.0309.17
5.2.130.0050.0309.13
5.2.120.0040.0439.13
5.2.110.0070.0329.14
5.2.100.0060.0409.14
5.2.90.0110.0299.13
5.2.80.0100.0369.13
5.2.70.0110.0479.13
5.2.60.0100.0409.09
5.2.50.0100.0579.06
5.2.40.0080.0389.03
5.2.30.0080.0429.00
5.2.20.0090.0599.00
5.2.10.0070.0288.91
5.2.00.0090.0468.77
5.1.60.0110.0588.06
5.1.50.0140.0388.05
5.1.40.0050.0408.04
5.1.30.0070.0598.39
5.1.20.0030.0318.41
5.1.10.0090.0498.13
5.1.00.0100.0638.14
5.0.50.0040.0296.61
5.0.40.0160.0506.47
5.0.30.0110.0506.29
5.0.20.0030.0206.25
5.0.10.0040.0196.23
5.0.00.0050.0316.23
4.4.90.0030.0234.78
4.4.80.0040.0214.76
4.4.70.0020.0174.75
4.4.60.0030.0154.75
4.4.50.0030.0184.77
4.4.40.0020.0274.71
4.4.30.0050.0144.76
4.4.20.0030.0164.84
4.4.10.0020.0164.85
4.4.00.0030.0274.76
4.3.110.0060.0204.66
4.3.100.0050.0194.67
4.3.90.0030.0164.63
4.3.80.0040.0284.58
4.3.70.0040.0264.63
4.3.60.0090.0474.63
4.3.50.0100.0294.63
4.3.40.0050.0324.54
4.3.30.0050.0223.27
4.3.20.0010.0253.26
4.3.10.0090.0393.21
4.3.00.0000.0237.31

preferences:
46.98 ms | 401 KiB | 5 Q