3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr_compare('abcd', 'bc', 1, false, false)); var_dump(substr_compare('abcd', 'bc', 1)); var_dump(substr_compare('abcd', 'bcd', 1, false, false)); var_dump(substr_compare('abcd', 'bcd', 1)); var_dump(substr_compare('abcd', 'BCD', 1, false, true)); var_dump(substr_compare('abcd', 'BCD', 1, 3, true));

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)
8.3.60.0090.00618.47
8.3.50.0110.01021.15
8.3.40.0040.01118.41
8.3.30.0070.01018.82
8.3.20.0040.00420.16
8.3.10.0030.00620.23
8.3.00.0080.00019.38
8.2.180.0040.01116.50
8.2.170.0000.01522.96
8.2.160.0140.00020.13
8.2.150.0040.00424.18
8.2.140.0030.00624.66
8.2.130.0060.00326.16
8.2.120.0030.00522.24
8.2.110.0060.00319.23
8.2.100.0110.00017.59
8.2.90.0000.00818.86
8.2.80.0000.00817.97
8.2.70.0040.00417.38
8.2.60.0000.00817.80
8.2.50.0060.00318.10
8.2.40.0040.00420.66
8.2.30.0000.00719.14
8.2.20.0040.00417.48
8.2.10.0000.00717.90
8.2.00.0040.00417.54
8.1.280.0100.01025.92
8.1.270.0090.00023.91
8.1.260.0000.00726.35
8.1.250.0060.00328.09
8.1.240.0070.00321.12
8.1.230.0080.00317.70
8.1.220.0090.00017.74
8.1.210.0040.00418.77
8.1.200.0000.00817.10
8.1.190.0030.00616.88
8.1.180.0000.00718.10
8.1.170.0080.00018.56
8.1.160.0000.00718.65
8.1.150.0000.00718.85
8.1.140.0000.00717.34
8.1.130.0080.00017.65
8.1.120.0030.00417.39
8.1.110.0000.00717.25
8.1.100.0040.00417.36
8.1.90.0000.00817.32
8.1.80.0020.00517.34
8.1.70.0000.00717.29
8.1.60.0050.00317.46
8.1.50.0030.00617.41
8.1.40.0000.00717.41
8.1.30.0030.00517.42
8.1.20.0000.00717.56
8.1.10.0000.00817.28
8.1.00.0060.00317.35
8.0.300.0040.00418.78
8.0.290.0040.00416.63
8.0.280.0000.00718.29
8.0.270.0000.00717.14
8.0.260.0040.00417.14
8.0.250.0030.00316.85
8.0.240.0000.00616.76
8.0.230.0000.00716.88
8.0.220.0000.00716.77
8.0.210.0040.00416.74
8.0.200.0000.00616.75
8.0.190.0070.00016.84
8.0.180.0000.00716.86
8.0.170.0030.00516.82
8.0.160.0030.00316.62
8.0.150.0000.00716.76
8.0.140.0000.00816.75
8.0.130.0080.00013.25
8.0.120.0040.00416.65
8.0.110.0000.00816.82
8.0.100.0000.00816.81
8.0.90.0030.00516.77
8.0.80.0000.01516.72
8.0.70.0050.00316.66
8.0.60.0000.00916.71
8.0.50.0080.00016.63
8.0.30.0050.01317.04
8.0.20.0130.00917.40
8.0.10.0000.00816.81
8.0.00.0080.00916.62
7.4.330.0000.00515.07
7.4.320.0030.00316.46
7.4.300.0030.00316.39
7.4.290.0070.00016.47
7.4.280.0080.00016.28
7.4.270.0070.00016.32
7.4.260.0030.00316.37
7.4.250.0040.00416.39
7.4.240.0070.00216.42
7.4.230.0000.00716.18
7.4.220.0070.01316.55
7.4.210.0030.01016.43
7.4.200.0000.00716.51
7.4.160.0090.00616.39
7.4.150.0110.00617.40
7.4.140.0120.00517.86
7.4.130.0070.01016.35
7.4.120.0100.00616.28
7.4.110.0030.01316.30
7.4.100.0070.01016.50
7.4.90.0070.01016.21
7.4.80.0100.01319.39
7.4.70.0070.01416.25
7.4.60.0080.00916.33
7.4.50.0040.00416.37
7.4.40.0120.00416.32
7.4.30.0140.00316.39
7.4.00.0040.01514.45
7.3.330.0000.00513.02
7.3.320.0050.00013.00
7.3.310.0050.00215.91
7.3.300.0050.00216.15
7.3.290.0100.00716.20
7.3.280.0070.01016.16
7.3.270.0100.00717.40
7.3.260.0070.01016.48
7.3.250.0060.01116.35
7.3.240.0040.01116.26
7.3.230.0060.00916.39
7.3.210.0170.00016.12
7.3.200.0170.00519.39
7.3.190.0060.01016.18
7.3.180.0000.01616.49
7.3.170.0100.00716.27
7.3.160.0120.00916.30
7.2.330.0070.01016.49
7.2.320.0100.00616.40
7.2.310.0030.01316.30
7.2.300.0080.01416.44
7.2.290.0170.00316.56
7.1.70.0080.00016.85
7.1.60.0070.01419.32
7.1.50.0070.01616.82
7.1.00.0000.08022.42
7.0.200.0030.00616.49
7.0.140.0030.07321.92
7.0.60.0070.03719.97
7.0.50.0070.05017.87
7.0.40.0130.04320.20
7.0.30.0600.06320.00
7.0.20.0300.07320.09
7.0.10.0030.08320.16
7.0.00.0100.08020.03
5.6.280.0030.07320.89
5.6.210.0200.07020.56
5.6.200.0100.03718.17
5.6.190.0130.08020.41
5.6.180.3530.04320.36
5.6.170.0300.07020.50
5.6.160.0100.06020.49
5.6.150.0100.07318.18
5.6.140.0100.07018.09
5.6.130.0100.08018.21
5.6.120.0030.06721.14
5.6.110.0030.06721.13
5.6.100.0070.07321.00
5.6.90.0100.06320.96
5.6.80.0170.07020.49
5.6.70.0200.05720.37
5.5.350.0270.03320.46
5.5.340.0030.04017.91
5.5.330.0030.04320.21
5.5.320.0300.06020.20
5.5.310.0230.08020.14
5.5.300.0130.07317.93
5.5.290.0070.04017.98
5.5.280.0070.07320.65
5.5.270.0130.07320.79
5.5.260.0100.08020.76
5.5.250.0130.07020.57
5.5.240.0300.05720.18
5.4.450.0830.06319.61
5.4.440.1070.05719.61
5.4.430.0930.06319.44
5.4.420.0700.00019.64
5.4.410.0670.00019.39
5.4.400.0670.00019.19
5.4.390.0630.00018.98
5.4.380.0670.00019.15
5.4.370.0630.00018.93
5.4.360.0600.00019.20
5.4.350.0670.00019.13
5.4.340.0670.00019.02
5.4.320.0060.03612.46
5.4.310.0060.04312.45
5.4.300.0060.04112.45
5.4.290.0060.03712.45
5.4.280.0060.03412.35
5.4.270.0060.03512.35
5.4.260.0040.03812.35
5.4.250.0050.03712.35
5.4.240.0060.03712.35
5.4.230.0110.03212.34
5.4.220.0080.03412.34
5.4.210.0070.03712.34
5.4.200.0040.04112.34
5.4.190.0080.04212.34
5.4.180.0090.03512.34
5.4.170.0050.04112.35
5.4.160.0080.03412.34
5.4.150.0070.03412.34
5.4.140.0080.03412.03
5.4.130.0050.03412.01
5.4.120.0040.03511.97
5.4.110.0060.03311.96
5.4.100.0070.03711.97
5.4.90.0060.04111.96
5.4.80.0050.03511.96
5.4.70.0060.03811.96
5.4.60.0050.03811.96
5.4.50.0040.03611.96
5.4.40.0080.03111.95
5.4.30.0040.03611.95
5.4.20.0080.03211.95
5.4.10.0060.03311.95
5.4.00.0060.03411.44
5.3.290.0060.03812.80
5.3.280.0050.03812.71
5.3.270.0050.03912.72
5.3.260.0040.04012.72
5.3.250.0040.03812.72
5.3.240.0040.03812.72
5.3.230.0050.03812.71
5.3.220.0100.03912.68
5.3.210.0050.04012.68
5.3.200.0050.03612.68
5.3.190.0060.04112.68
5.3.180.0060.03712.67
5.3.170.0050.03612.67
5.3.160.0090.03312.68
5.3.150.0060.03612.67
5.3.140.0060.04212.66
5.3.130.0040.04012.66
5.3.120.0090.04212.66
5.3.110.0050.03912.66
5.3.100.0050.03612.12
5.3.90.0060.03612.09
5.3.80.0080.03212.07
5.3.70.0060.03612.07
5.3.60.0070.03512.06
5.3.50.0050.03612.00
5.3.40.0040.03712.00
5.3.30.0030.03811.95
5.3.20.0050.03911.72
5.3.10.0070.03511.69
5.3.00.0100.03711.69
5.2.170.0060.0359.18
5.2.160.0070.0269.18
5.2.150.0080.0329.18
5.2.140.0040.0309.18
5.2.130.0050.0299.14
5.2.120.0070.0259.13
5.2.110.0080.0329.14
5.2.100.0060.0269.14
5.2.90.0060.0279.14
5.2.80.0020.0329.13
5.2.70.0010.0339.14
5.2.60.0030.0319.09
5.2.50.0090.0289.05
5.2.40.0030.0379.04
5.2.30.0030.0319.01
5.2.20.0060.0269.00
5.2.10.0030.0288.92
5.2.00.0030.0298.78
5.1.60.0050.0278.06
5.1.50.0020.0268.05
5.1.40.0080.0348.04
5.1.30.0050.0338.39
5.1.20.0030.0268.41
5.1.10.0030.0318.14
5.1.00.0030.0268.14
5.0.50.0050.0186.61
5.0.40.0060.0176.48
5.0.30.0040.0306.28
5.0.20.0030.0206.26
5.0.10.0030.0206.23
5.0.00.0060.0276.23
4.4.90.0020.0154.78
4.4.80.0050.0144.75
4.4.70.0050.0134.75
4.4.60.0020.0164.75
4.4.50.0030.0154.77
4.4.40.0030.0244.71
4.4.30.0010.0184.76
4.4.20.0030.0174.84
4.4.10.0050.0154.85
4.4.00.0020.0254.76
4.3.110.0030.0174.67
4.3.100.0020.0164.66
4.3.90.0040.0134.63
4.3.80.0020.0254.58
4.3.70.0030.0144.63
4.3.60.0020.0194.63
4.3.50.0020.0174.63
4.3.40.0030.0234.53
4.3.30.0000.0173.28
4.3.20.0010.0173.26
4.3.10.0020.0153.22
4.3.00.0030.0207.19

preferences:
49.93 ms | 401 KiB | 5 Q