3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = '&lt;t&gt;'; var_dump(substr($s, strlen($s - 4), 4) === '&gt;'); var_dump(substr($s, strlen($s - 4), 4));

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)
8.3.40.0000.01418.67
8.3.30.0040.01118.96
8.3.20.0080.00020.16
8.3.10.0040.00423.62
8.3.00.0060.00319.26
8.2.170.0070.01422.96
8.2.160.0070.00720.39
8.2.150.0030.00524.18
8.2.140.0000.00724.66
8.2.130.0070.01126.16
8.2.120.0040.00422.25
8.2.110.0040.00419.27
8.2.100.0040.00817.71
8.2.90.0050.00319.21
8.2.80.0000.00917.97
8.2.70.0080.00317.50
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0000.01018.22
8.2.30.0070.00017.91
8.2.20.0000.00717.55
8.2.10.0000.00717.93
8.2.00.0070.00317.61
8.1.270.0040.00423.96
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0060.00321.12
8.1.230.0080.00319.15
8.1.220.0080.00017.79
8.1.210.0030.00518.77
8.1.200.0030.00617.36
8.1.190.0000.00817.54
8.1.180.0060.00318.10
8.1.170.0050.00318.46
8.1.160.0040.00421.90
8.1.150.0030.00618.61
8.1.140.0000.00717.44
8.1.130.0030.00317.81
8.1.120.0040.00717.46
8.1.110.0040.00417.37
8.1.100.0000.00817.45
8.1.90.0000.00717.43
8.1.80.0000.00717.34
8.1.70.0000.00717.38
8.1.60.0080.00017.52
8.1.50.0000.00917.39
8.1.40.0000.00717.57
8.1.30.0030.00617.57
8.1.20.0000.00717.70
8.1.10.0040.00417.59
8.1.00.0000.00917.55
8.0.300.0000.00718.98
8.0.290.0000.00817.05
8.0.280.0080.00018.38
8.0.270.0070.00017.20
8.0.260.0000.00617.25
8.0.250.0030.00316.82
8.0.240.0040.00416.83
8.0.230.0050.00217.00
8.0.220.0000.00716.88
8.0.210.0070.00016.89
8.0.200.0030.00316.96
8.0.190.0000.00817.01
8.0.180.0070.00016.87
8.0.170.0080.00016.75
8.0.160.0040.00416.91
8.0.150.0000.00816.82
8.0.140.0080.00016.88
8.0.130.0000.00713.32
8.0.120.0030.00616.75
8.0.110.0040.00416.87
8.0.100.0000.00816.82
8.0.90.0040.00416.83
8.0.80.0110.00416.77
8.0.70.0030.00316.93
8.0.60.0040.00416.68
8.0.50.0030.00516.84
8.0.30.0070.01017.20
8.0.20.0090.01117.40
8.0.10.0070.00016.90
8.0.00.0100.00916.74
7.4.330.0000.00615.00
7.4.320.0000.00616.53
7.4.300.0030.00316.35
7.4.290.0000.00716.48
7.4.280.0000.00816.48
7.4.270.0050.00216.59
7.4.260.0080.00016.52
7.4.250.0040.00416.59
7.4.240.0050.00216.45
7.4.230.0050.00316.70
7.4.220.0100.00716.54
7.4.210.0070.01016.61
7.4.200.0000.00716.49
7.4.190.0040.00416.68
7.4.160.0080.00816.63
7.4.150.0130.00517.40
7.4.140.0080.01117.86
7.4.130.0080.00816.44
7.4.120.0120.00516.54
7.4.110.0040.01316.44
7.4.100.0090.00916.60
7.4.90.0110.00716.69
7.4.80.0170.00219.39
7.4.70.0060.01216.59
7.4.60.0090.01216.41
7.4.50.0040.00416.24
7.4.40.0070.00822.77
7.4.30.0090.00616.46
7.4.00.0070.00414.89
7.3.330.0000.00513.20
7.3.320.0060.00013.05
7.3.310.0040.00416.29
7.3.300.0000.00716.16
7.3.290.0000.01416.27
7.3.280.0130.00716.36
7.3.270.0070.01017.40
7.3.260.0120.00616.36
7.3.250.0130.00516.42
7.3.240.0130.00616.27
7.3.230.0120.01116.39
7.3.210.0090.01216.34
7.3.200.0060.01519.39
7.3.190.0150.00616.50
7.3.180.0070.01416.30
7.3.170.0120.01216.31
7.3.160.0110.00516.52
7.3.120.0110.00414.76
7.2.330.0150.00316.46
7.2.320.0140.00616.39
7.2.310.0060.01016.55
7.2.300.0100.00716.38
7.2.290.0080.00816.74
7.2.60.0090.00316.71
7.2.00.0110.00819.21
7.1.200.0000.01415.83
7.1.100.0060.00918.20
7.1.70.0110.00416.81
7.1.60.0090.01519.46
7.1.50.0130.02334.85
7.1.00.0030.07722.36
7.0.200.0090.00016.84
7.0.140.0000.07722.15
7.0.60.0070.07720.01
7.0.50.0100.07317.80
7.0.40.0070.04020.11
7.0.30.0370.06720.31
7.0.20.0170.04320.45
7.0.10.0070.08720.30
7.0.00.0070.07720.11
5.6.280.0000.07320.88
5.6.210.0030.09320.65
5.6.200.0100.08318.18
5.6.190.0070.08320.27
5.6.180.0430.04320.45
5.6.170.0200.05720.49
5.6.160.0100.08020.44
5.6.150.0100.07718.18
5.6.140.0170.07018.20
5.6.130.0100.04018.09
5.6.120.0100.07020.96
5.6.110.0070.08720.99
5.6.100.0030.09021.11
5.6.90.0070.03720.99
5.6.80.0130.07320.37
5.5.350.0400.06320.45
5.5.340.0000.06017.89
5.5.330.0100.07720.48
5.5.320.0200.08020.21
5.5.310.0230.04320.29
5.5.300.0030.08717.92
5.5.290.0070.03717.91
5.5.280.0000.05720.67
5.5.270.0070.07720.78
5.5.260.0030.05320.61
5.5.250.0130.08320.57
5.5.240.0030.07720.11
5.4.450.0130.05719.30
5.4.440.0200.06019.45
5.4.430.0330.04719.10
5.4.420.0230.04719.51
5.4.410.0030.05719.41
5.4.400.0200.04019.16
5.4.390.0070.05319.09
5.4.380.0330.04318.74
5.4.370.0430.04318.66
5.4.360.0400.05018.62
5.4.350.0070.03311.97
5.4.340.0070.03511.96
5.4.320.0060.03912.45
5.4.310.0080.04812.45
5.4.300.0070.04412.45
5.4.290.0220.05912.43
5.4.280.0230.06712.33
5.4.270.0040.04412.33
5.4.260.0150.04712.33
5.4.250.0050.04512.33
5.4.240.0210.05912.33
5.4.230.0080.06912.32
5.4.220.0130.05212.32
5.4.210.0350.04812.32
5.4.200.0080.06512.32
5.4.190.0100.04312.32
5.4.180.0120.04112.32
5.4.170.0090.04512.33
5.4.160.0080.03912.32
5.4.150.0090.03812.32
5.4.140.0110.04712.01
5.4.130.0110.03711.99
5.4.120.0040.04611.95
5.4.110.0090.04111.95
5.4.100.0090.06311.95
5.4.90.0120.06111.95
5.4.80.0130.04511.95
5.4.70.0100.04811.94
5.4.60.0060.03911.94
5.4.50.0070.04411.95
5.4.40.0140.03811.93
5.4.30.0060.04811.93
5.4.20.0060.03911.93
5.4.10.0110.04711.93
5.4.00.0070.04711.42
5.3.290.0090.04312.80
5.3.280.0110.04412.71
5.3.270.0110.04212.73
5.3.260.0060.04212.72
5.3.250.0050.04312.72
5.3.240.0110.04312.72
5.3.230.0070.04312.71
5.3.220.0110.04912.68
5.3.210.0070.04412.68
5.3.200.0050.04512.68
5.3.190.0070.05512.68
5.3.180.0070.05212.68
5.3.170.0070.04212.67
5.3.160.0120.05212.68
5.3.150.0090.05112.67
5.3.140.0110.04612.66
5.3.130.0090.05212.66
5.3.120.0070.04112.66
5.3.110.0130.04612.66
5.3.100.0080.04412.11
5.3.90.0090.04712.09
5.3.80.0100.03612.07
5.3.70.0080.05112.07
5.3.60.0080.04812.07
5.3.50.0060.05312.00
5.3.40.0090.05312.00
5.3.30.0090.05611.95
5.3.20.0120.05111.72
5.3.10.0090.04911.69
5.3.00.0090.04611.67
5.2.170.0100.0499.18
5.2.160.0050.0349.18
5.2.150.0100.0429.18
5.2.140.0050.0549.18
5.2.130.0100.0349.14
5.2.120.0100.0289.13
5.2.110.0070.0329.14
5.2.100.0060.0329.13
5.2.90.0080.0329.14
5.2.80.0090.0339.13
5.2.70.0080.0459.13
5.2.60.0130.0409.09
5.2.50.0070.0599.05
5.2.40.0070.0469.04
5.2.30.0050.0509.01
5.2.20.0050.0368.99
5.2.10.0080.0308.93
5.2.00.0040.0348.79
5.1.60.0090.0348.07
5.1.50.0080.0418.07
5.1.40.0110.0358.05
5.1.30.0080.0508.40
5.1.20.0060.0318.43
5.1.10.0180.0328.15
5.1.00.0100.0368.15
5.0.50.0120.0246.63
5.0.40.0060.0276.49
5.0.30.0110.0376.30
5.0.20.0060.0216.27
5.0.10.0070.0216.25
5.0.00.0100.0286.24
4.4.90.0030.0154.78
4.4.80.0050.0134.75
4.4.70.0030.0164.76
4.4.60.0050.0184.75
4.4.50.0030.0174.77
4.4.40.0030.0324.71
4.4.30.0020.0224.76
4.4.20.0040.0194.84
4.4.10.0060.0164.85
4.4.00.0040.0324.76
4.3.110.0050.0154.67
4.3.100.0020.0164.66
4.3.90.0050.0194.63
4.3.80.0050.0264.58
4.3.70.0080.0204.63
4.3.60.0030.0154.63
4.3.50.0040.0164.62
4.3.40.0030.0254.54
4.3.30.0050.0203.30
4.3.20.0010.0233.27
4.3.10.0040.0213.23
4.3.00.0070.0207.65

preferences:
42.85 ms | 400 KiB | 5 Q