3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr_compare("abcde", "bc", 1, 0, 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)
8.3.60.0150.00318.31
8.3.50.0170.00521.14
8.3.40.0070.00718.71
8.3.30.0120.00318.96
8.3.20.0070.00020.21
8.3.10.0030.00620.41
8.3.00.0080.00019.26
8.2.180.0030.01318.16
8.2.170.0070.01022.96
8.2.160.0090.00920.52
8.2.150.0000.00724.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0070.00022.14
8.2.110.0070.00321.03
8.2.100.0120.00017.59
8.2.90.0080.00019.05
8.2.80.0050.00317.97
8.2.70.0000.00817.38
8.2.60.0030.00517.68
8.2.50.0040.00418.10
8.2.40.0060.00318.03
8.2.30.0040.00417.97
8.2.20.0040.00417.43
8.2.10.0040.00417.98
8.2.00.0000.00717.65
8.1.280.0100.01025.92
8.1.270.0030.01323.70
8.1.260.0050.00226.35
8.1.250.0080.00028.09
8.1.240.0060.00324.04
8.1.230.0000.01020.31
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.10
8.1.190.0030.00617.10
8.1.180.0080.00018.10
8.1.170.0030.00518.46
8.1.160.0050.00221.98
8.1.150.0040.00418.67
8.1.140.0000.00717.30
8.1.130.0000.00717.79
8.1.120.0000.00817.34
8.1.110.0050.00317.24
8.1.100.0000.00717.21
8.1.90.0000.00717.35
8.1.80.0080.00017.29
8.1.70.0030.00317.32
8.1.60.0050.00317.34
8.1.50.0000.00817.34
8.1.40.0070.00017.39
8.1.30.0030.00617.45
8.1.20.0040.00417.49
8.1.10.0000.00717.39
8.1.00.0020.00517.32
8.0.300.0080.00018.77
8.0.290.0040.00416.63
8.0.280.0080.00018.21
8.0.270.0040.00417.12
8.0.260.0030.00317.08
8.0.250.0030.00316.72
8.0.240.0030.00516.72
8.0.230.0070.00016.80
8.0.220.0030.00316.72
8.0.210.0000.00716.62
8.0.200.0060.00016.86
8.0.190.0030.00616.86
8.0.180.0070.00016.77
8.0.170.0060.00316.75
8.0.160.0000.00716.77
8.0.150.0030.00416.73
8.0.140.0060.00316.57
8.0.130.0000.00913.21
8.0.120.0000.00716.73
8.0.110.0000.00716.79
8.0.100.0000.00716.55
8.0.90.0000.00716.65
8.0.80.0040.01216.76
8.0.70.0050.00216.87
8.0.60.0040.00416.82
8.0.50.0080.00016.71
8.0.30.0110.00916.80
8.0.20.0090.01117.40
8.0.10.0040.00416.78
8.0.00.0070.01016.57
7.4.330.0060.00015.00
7.4.320.0060.00016.45
7.4.300.0060.00016.37
7.4.290.0000.00716.38
7.4.280.0050.00216.33
7.4.270.0000.00716.45
7.4.260.0030.00316.30
7.4.250.0000.00716.36
7.4.240.0050.00216.45
7.4.230.0050.00316.51
7.4.220.0110.00716.37
7.4.210.0030.01116.40
7.4.200.0000.00716.46
7.4.160.0140.00416.23
7.4.150.0100.00617.40
7.4.140.0070.01317.86
7.4.130.0110.00716.47
7.4.120.0070.01016.31
7.4.110.0130.00316.48
7.4.100.0030.01316.37
7.4.90.0100.00716.39
7.4.80.0070.01019.39
7.4.70.0160.00616.30
7.4.60.0160.00716.34
7.4.50.0060.00016.09
7.4.40.0150.00316.47
7.4.30.0110.01116.30
7.4.00.0070.00714.86
7.3.330.0050.00012.87
7.3.320.0000.00512.88
7.3.310.0070.00016.06
7.3.300.0030.00315.96
7.3.290.0050.00816.10
7.3.280.0060.01116.08
7.3.270.0090.00917.40
7.3.260.0210.00016.10
7.3.250.0130.00616.24
7.3.240.0150.01216.38
7.3.230.0170.00016.39
7.3.210.0170.00816.32
7.3.200.0110.01119.39
7.3.190.0100.01016.18
7.3.180.0100.00616.01
7.3.170.0090.00616.29
7.3.160.0100.01316.37
7.3.10.0040.00816.56
7.3.00.0060.00616.63
7.2.330.0110.00616.56
7.2.320.0060.01016.61
7.2.310.0090.00916.18
7.2.300.0100.00616.48
7.2.290.0070.01316.30
7.2.130.0100.00316.61
7.2.120.0110.00316.73
7.2.110.0040.00816.81
7.2.100.0000.01316.70
7.2.90.0060.00616.79
7.2.80.0030.00616.61
7.2.70.0100.00316.73
7.2.60.0070.00716.68
7.2.50.0000.00816.83
7.2.40.0030.00916.89
7.2.30.0070.00716.87
7.2.20.0070.00716.77
7.2.10.0040.00716.72
7.2.00.0060.00517.63
7.1.250.0040.00415.65
7.1.200.0030.00615.64
7.1.100.0000.01117.91
7.1.70.0030.01316.71
7.1.60.0030.02219.32
7.1.50.0000.01116.54
7.1.00.0000.07722.34
7.0.200.0030.00716.57
7.0.140.0070.06722.18
7.0.60.0100.07720.01
7.0.50.0130.07317.88
7.0.40.0000.04719.90
7.0.30.0500.06320.12
7.0.20.0300.06020.01
7.0.10.0070.08720.09
7.0.00.0030.04720.12
5.6.280.0070.06721.06
5.6.210.0130.07020.70
5.6.200.0130.07318.13
5.6.190.0070.09020.41
5.6.180.0400.06720.36
5.6.170.0230.03720.48
5.6.160.0130.04320.47
5.6.150.0030.08318.12
5.6.140.0100.08018.11
5.6.130.0130.07718.10
5.6.120.0000.09020.95
5.6.110.0100.05720.96
5.6.100.0100.03720.98
5.6.90.0070.07321.07
5.6.80.0000.08320.53
5.5.350.0200.08020.32
5.5.340.0070.05017.99
5.5.330.0070.08320.23
5.5.320.0330.07020.18
5.5.310.0300.04320.29
5.5.300.0070.08018.00
5.5.290.0070.06317.92
5.5.280.0070.07320.72
5.5.270.0070.07720.72
5.5.260.0070.08320.86
5.5.250.0070.03720.54
5.5.240.0230.06720.32
5.4.450.2000.04319.11
5.4.440.1870.04719.57
5.4.430.1900.04019.13
5.4.420.2100.04019.38
5.4.410.1870.03719.28
5.4.400.2130.03718.89
5.4.390.1830.04319.12
5.4.380.1700.04319.16
5.4.370.1930.05018.95
5.4.360.1770.04019.10
5.4.350.1400.03719.09
5.4.340.0030.07719.21
5.4.320.0030.04018.93
5.4.310.0870.05319.20
5.4.300.1770.04019.10
5.4.290.2000.04319.13
5.4.280.2030.03718.91
5.4.270.2130.03719.25
5.4.260.2000.04319.15
5.4.250.2230.03718.88
5.4.240.2170.04318.91
5.4.230.2100.03719.23
5.4.220.2570.04019.12
5.4.210.0470.03719.19
5.4.200.0070.04018.90
5.4.190.0300.07019.09
5.4.180.1970.03319.07
5.4.170.1830.04018.89
5.4.160.1830.04019.02
5.4.150.2000.03319.11
5.4.140.2000.03716.23
5.4.130.1870.03316.30
5.4.120.1870.03016.25
5.4.110.1770.03716.47
5.4.100.1730.04016.43
5.4.90.2100.03716.18
5.4.80.1770.04016.48
5.4.70.1830.03316.44
5.4.60.1930.03016.43
5.4.50.2100.03716.27
5.4.40.1900.03716.36
5.4.30.2070.03316.28
5.4.20.1830.03716.33
5.4.10.1830.04016.36
5.4.00.1900.03015.82
5.3.290.2230.04014.49
5.3.280.2130.03314.46
5.3.270.2100.05014.55
5.3.260.0030.04014.43
5.3.250.0000.06014.44
5.3.240.0070.07714.64
5.3.230.1270.04014.42
5.3.220.1870.03014.51
5.3.210.2000.04714.41
5.3.200.1970.04314.41
5.3.190.2030.04714.55
5.3.180.2100.03714.41
5.3.170.1630.04314.51
5.3.160.2070.03014.49
5.3.150.2070.04014.51
5.3.140.2070.04314.50
5.3.130.1870.03714.53
5.3.120.2000.04014.38
5.3.110.2000.04314.41
5.3.100.1970.04013.91
5.3.90.2030.04014.00
5.3.80.1970.04713.89
5.3.70.2030.03714.00
5.3.60.2070.04013.78
5.3.50.2000.04013.89
5.3.40.2030.04013.89
5.3.30.2000.04713.70
5.3.20.1930.04013.64
5.3.10.1870.04313.53
5.3.00.2100.04013.73
5.2.170.1770.03011.02
5.2.160.1900.03311.00
5.2.150.1700.03711.15
5.2.140.1730.03711.00
5.2.130.1630.03711.11
5.2.120.1400.03310.95
5.2.110.1700.03011.14
5.2.100.1630.03711.16
5.2.90.1600.03311.13
5.2.80.1630.02711.03
5.2.70.1630.03711.00
5.2.60.1770.03011.07
5.2.50.1400.03311.02
5.2.40.1430.03310.93
5.2.30.1470.03010.90
5.2.20.1470.03010.86
5.2.10.1400.04010.87
5.2.00.1470.03010.61
5.1.60.1400.02710.05
5.1.50.1230.02310.00
5.1.40.1370.02710.09
5.1.30.1330.03010.46
5.1.20.1430.03010.31
5.1.10.1270.0239.96
5.1.00.1200.02710.16
5.0.50.0570.0238.52
5.0.40.0700.0278.45
5.0.30.0630.0338.20
5.0.20.0770.0208.16
5.0.10.0600.0208.33
5.0.00.0630.0278.05
4.4.90.0670.0207.91
4.4.80.0600.0177.91
4.4.70.0630.0177.91
4.4.60.0630.0177.91
4.4.50.0800.0137.91
4.4.40.0530.0207.91
4.4.30.0700.0077.91
4.4.20.0630.0137.91
4.4.10.0630.0137.91
4.4.00.0630.0237.91
4.3.110.0670.0177.91
4.3.100.0600.0177.91
4.3.90.0630.0137.91
4.3.80.0530.0177.91
4.3.70.0600.0177.91
4.3.60.0670.0177.91
4.3.50.0630.0137.91
4.3.40.0670.0207.91
4.3.30.0330.0137.91
4.3.20.0330.0177.91
4.3.10.0200.0137.91
4.3.00.0000.0137.91

preferences:
40.39 ms | 401 KiB | 5 Q