3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str1 = 'football'; $str2 = 'footboll'; $str_pos = strspn($str1 ^ $str2, "\0"); printf('First difference between two strungs at position %d: "%s" vs "%s"', $str_pos, $str1[$str_pos], $str2[$str_pos] ); ?>

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)
8.3.60.0100.00316.38
8.3.50.0280.01122.01
8.3.40.0070.00718.77
8.3.30.0040.01119.05
8.3.20.0040.00420.30
8.3.10.0070.00023.84
8.3.00.0080.00019.38
8.2.180.0060.01016.63
8.2.170.0150.00022.96
8.2.160.0070.00720.34
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0030.00322.26
8.2.110.0060.00322.28
8.2.100.0000.01218.03
8.2.90.0040.00419.36
8.2.80.0000.00818.16
8.2.70.0030.00617.63
8.2.60.0030.00617.68
8.2.50.0000.00818.07
8.2.40.0000.00820.07
8.2.30.0000.00718.00
8.2.20.0000.00717.66
8.2.10.0000.00718.06
8.2.00.0030.00617.70
8.1.280.0080.00625.92
8.1.270.0040.00423.79
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00623.79
8.1.230.0070.00419.01
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0030.00617.22
8.1.190.0080.00017.53
8.1.180.0060.00618.10
8.1.170.0030.00618.37
8.1.160.0030.00322.08
8.1.150.0000.00818.62
8.1.140.0000.00717.38
8.1.130.0000.00717.87
8.1.120.0020.00517.30
8.1.110.0030.00617.26
8.1.100.0080.00317.40
8.1.90.0040.00417.45
8.1.80.0030.00317.47
8.1.70.0000.00817.35
8.1.60.0000.00717.42
8.1.50.0050.00317.46
8.1.40.0060.00317.34
8.1.30.0000.00817.57
8.1.20.0000.00817.62
8.1.10.0000.00817.45
8.1.00.0030.00517.50
8.0.300.0040.00419.27
8.0.290.0070.00017.18
8.0.280.0030.00318.52
8.0.270.0070.00017.16
8.0.260.0030.00317.36
8.0.250.0030.00316.97
8.0.240.0040.00416.83
8.0.230.0070.00016.95
8.0.220.0080.00016.77
8.0.210.0030.00616.91
8.0.200.0000.00616.95
8.0.190.0060.00316.94
8.0.180.0040.00416.80
8.0.170.0050.00316.94
8.0.160.0040.00416.84
8.0.150.0070.00016.76
8.0.140.0050.00316.67
8.0.130.0050.00013.25
8.0.120.0070.00016.80
8.0.110.0080.00016.88
8.0.100.0040.00416.76
8.0.90.0070.00016.80
8.0.80.0070.00716.82
8.0.70.0030.00316.79
8.0.60.0050.00216.84
8.0.50.0040.00416.73
8.0.30.0070.01116.96
8.0.20.0120.00817.40
8.0.10.0000.00717.00
8.0.00.0140.00616.67
7.4.330.0050.00015.00
7.4.320.0060.00016.54
7.4.300.0060.00016.35
7.4.290.0030.00316.51
7.4.280.0000.00816.54
7.4.270.0040.00416.44
7.4.260.0000.00716.42
7.4.250.0000.00716.36
7.4.240.0000.00716.49
7.4.230.0000.00716.31
7.4.220.0070.01016.48
7.4.210.0100.00616.55
7.4.200.0000.00716.24
7.4.190.0080.00016.63
7.4.160.0090.00616.71
7.4.150.0100.00717.40
7.4.140.0150.00217.86
7.4.130.0120.00516.54
7.4.120.0090.00916.41
7.4.110.0060.01316.43
7.4.100.0060.01216.57
7.4.90.0030.01316.33
7.4.80.0140.01019.39
7.4.70.0060.01516.47
7.4.60.0060.01116.47
7.4.50.0030.00316.49
7.4.40.0060.01222.77
7.4.30.0100.00616.51
7.4.00.0030.01015.08
7.3.330.0040.00413.20
7.3.320.0000.00612.99
7.3.310.0070.00016.32
7.3.300.0060.00016.26
7.3.290.0080.00816.24
7.3.280.0080.01016.29
7.3.270.0070.01017.40
7.3.260.0000.01816.72
7.3.250.0110.01016.42
7.3.240.0060.01316.34
7.3.230.0030.01316.56
7.3.210.0070.01016.25
7.3.200.0030.01719.39
7.3.190.0090.00916.23
7.3.180.0120.00316.61
7.3.170.0090.00616.30
7.3.160.0030.01316.23
7.3.120.0160.00014.82
7.2.330.0060.01216.25
7.2.320.0120.00416.26
7.2.310.0070.01416.30
7.2.300.0060.00916.75
7.2.290.0130.01016.75
7.2.00.0000.01519.43
7.1.100.0090.00618.36
7.1.70.0040.00417.19
7.1.60.0060.00919.46
7.1.50.0120.00416.78
7.1.00.0070.07322.26
7.0.200.0210.00814.85
7.0.140.0130.06322.08
7.0.60.0130.07719.97
7.0.50.0100.05017.77
7.0.40.0100.07720.02
7.0.30.0430.04320.13
7.0.20.0270.08320.17
7.0.10.0130.06320.09
7.0.00.0030.04020.00
5.6.280.0030.07321.04
5.6.210.0030.08720.76
5.6.200.0030.07018.14
5.6.190.0070.06320.62
5.6.180.0300.04720.41
5.6.170.0030.05320.40
5.6.160.0030.06020.50
5.6.150.0030.08718.09
5.6.140.0130.03018.16
5.6.130.0070.03718.18
5.6.120.0100.08020.97
5.6.110.0100.06721.02
5.6.100.0130.06720.99
5.6.90.0030.07721.12
5.6.80.0070.08320.36
5.6.70.2970.02720.36
5.5.350.0130.07020.40
5.5.340.0130.04317.95
5.5.330.0000.08320.07
5.5.320.0030.05020.27
5.5.310.0200.03720.27
5.5.300.0100.03318.00
5.5.290.0130.03017.98
5.5.280.0070.04020.73
5.5.270.0100.07020.75
5.5.260.0130.08020.78
5.5.250.0130.06320.65
5.5.240.0230.04720.25
5.4.450.0670.05719.15
5.4.440.0530.07319.52
5.4.430.0830.04719.48
5.4.420.0630.00019.51
5.4.410.0130.05718.70
5.4.400.0200.05318.50
5.4.390.0300.04718.59
5.4.380.0200.05718.69
5.4.370.0030.06018.59
5.4.360.0100.04318.63
5.4.350.0100.04011.97
5.4.340.0050.03811.97
5.4.320.0070.04512.45
5.4.310.0070.03612.45
5.4.300.0080.04112.45
5.4.290.0140.07612.43
5.4.280.0140.08712.33
5.4.270.0100.07012.33
5.4.260.0130.09812.33
5.4.250.0060.05812.33
5.4.240.0300.13912.33
5.4.230.0180.11712.32
5.4.220.0050.04712.32
5.4.210.0100.04212.32
5.4.200.0110.09212.32
5.4.190.0090.08712.32
5.4.180.0130.05712.32
5.4.170.0100.03512.33
5.4.160.0160.05712.32
5.4.150.0080.04512.32
5.4.140.0090.04912.00
5.4.130.0120.04412.00
5.4.120.0030.04411.95
5.4.110.0070.03911.95
5.4.100.0040.03811.95
5.4.90.0050.03711.95
5.4.80.0080.04711.95
5.4.70.0080.03611.94
5.4.60.0100.05111.95
5.4.50.0140.08411.95
5.4.40.0050.05811.93
5.4.30.0100.05811.93
5.4.20.0130.06011.93
5.4.10.0160.07811.93
5.4.00.0140.08611.42
5.3.290.0110.03912.80
5.3.280.0050.03812.71
5.3.270.0030.04312.73
5.3.260.0040.05612.72
5.3.250.0080.05412.72
5.3.240.0100.05112.72
5.3.230.0060.03912.71
5.3.220.0050.03912.68
5.3.210.0060.03912.68
5.3.200.0090.03312.68
5.3.190.0030.04012.68
5.3.180.0060.03612.67
5.3.170.0080.03512.67
5.3.160.0050.03912.67
5.3.150.0070.03712.67
5.3.140.0080.03412.66
5.3.130.0050.04012.66
5.3.120.0110.04112.66
5.3.110.0110.04912.65
5.3.100.0030.03912.12
5.3.90.0040.03712.08
5.3.80.0060.03512.08
5.3.70.0090.03812.08
5.3.60.0030.05112.07
5.3.50.0070.04712.00
5.3.40.0110.03912.00
5.3.30.0060.03511.95
5.3.20.0040.03811.72
5.3.10.0080.05511.69
5.3.00.0040.05411.68
5.2.170.0080.0419.18
5.2.160.0060.0339.18
5.2.150.0060.0439.18
5.2.140.0050.0329.17
5.2.130.0080.0289.14
5.2.120.0050.0319.14
5.2.110.0070.0309.14
5.2.100.0070.0419.14
5.2.90.0040.0329.14
5.2.80.0080.0279.14
5.2.70.0070.0289.13
5.2.60.0050.0339.09
5.2.50.0030.0389.05
5.2.40.0040.0349.04
5.2.30.0060.0309.01
5.2.20.0040.0319.00
5.2.10.0090.0288.91
5.2.00.0050.0408.78
5.1.60.0040.0408.06
5.1.50.0080.0318.06
5.1.40.0050.0358.04
5.1.30.0070.0358.39
5.1.20.0010.0308.41
5.1.10.0070.0238.13
5.1.00.0060.0298.13
5.0.50.0020.0226.62
5.0.40.0030.0206.47
5.0.30.0050.0306.29
5.0.20.0070.0236.26
5.0.10.0040.0206.23
5.0.00.0040.0296.23
4.4.90.0040.0144.78
4.4.80.0030.0184.75
4.4.70.0020.0164.75
4.4.60.0010.0194.76
4.4.50.0030.0214.77
4.4.40.0050.0264.71
4.4.30.0030.0174.76
4.4.20.0050.0134.84
4.4.10.0020.0164.85
4.4.00.0020.0264.76
4.3.110.0010.0174.67
4.3.100.0020.0154.66
4.3.90.0020.0154.64
4.3.80.0040.0234.58
4.3.70.0030.0144.63
4.3.60.0040.0134.62
4.3.50.0020.0164.63
4.3.40.0010.0254.54
4.3.30.0010.0173.28
4.3.20.0020.0163.26
4.3.10.0020.0153.22
4.3.00.0130.0278.14

preferences:
48.23 ms | 401 KiB | 5 Q