3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr_compare'abcd', 'bc', null, false)); var_dump(substr_compare'abcd', 'bc'));

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)
5.4.320.0040.03912.50
5.4.310.0100.03412.49
5.4.300.0100.03312.50
5.4.290.0040.04012.49
5.4.280.0040.04412.39
5.4.270.0040.04412.39
5.4.260.0070.03612.39
5.4.250.0050.03812.39
5.4.240.0090.03412.39
5.4.230.0080.03512.38
5.4.220.0050.03612.38
5.4.210.0050.04312.38
5.4.200.0060.03912.38
5.4.190.0040.03812.38
5.4.180.0080.03312.38
5.4.170.0110.03112.39
5.4.160.0080.04312.38
5.4.150.0050.04312.38
5.4.140.0030.04012.07
5.4.130.0070.03412.05
5.4.120.0040.03712.01
5.4.110.0110.03012.01
5.4.100.0060.03512.01
5.4.90.0080.03312.01
5.4.80.0030.03812.01
5.4.70.0050.03612.00
5.4.60.0050.03612.01
5.4.50.0060.03712.01
5.4.40.0040.03611.99
5.4.30.0050.03511.99
5.4.20.0080.03311.98
5.4.10.0070.03911.99
5.4.00.0060.03511.48
5.3.290.0060.04212.80
5.3.280.0060.03712.71
5.3.270.0090.03812.72
5.3.260.0080.03812.72
5.3.250.0050.03812.72
5.3.240.0060.03812.71
5.3.230.0070.04112.71
5.3.220.0020.04112.68
5.3.210.0080.03712.68
5.3.200.0040.03812.68
5.3.190.0040.03912.67
5.3.180.0070.03512.68
5.3.170.0090.03212.67
5.3.160.0030.03912.67
5.3.150.0050.03812.67
5.3.140.0090.04512.66
5.3.130.0070.03712.66
5.3.120.0060.03812.66
5.3.110.0060.03912.66
5.3.100.0070.03512.12
5.3.90.0070.03612.08
5.3.80.0060.03512.07
5.3.70.0090.03812.07
5.3.60.0070.03512.07
5.3.50.0070.03312.00
5.3.40.0050.04012.00
5.3.30.0070.03311.95
5.3.20.0030.03811.73
5.3.10.0060.03411.70
5.3.00.0080.03311.68
5.2.170.0020.0329.18
5.2.160.0030.0349.19
5.2.150.0090.0309.18
5.2.140.0030.0409.18
5.2.130.0010.0329.14
5.2.120.0040.0319.14
5.2.110.0040.0379.15
5.2.100.0100.0339.14
5.2.90.0070.0369.14
5.2.80.0060.0309.14
5.2.70.0050.0309.14
5.2.60.0050.0299.09
5.2.50.0090.0279.06
5.2.40.0060.0299.03
5.2.30.0030.0309.01
5.2.20.0070.0339.00
5.2.10.0030.0348.92
5.2.00.0060.0338.78
5.1.60.0040.0258.06
5.1.50.0040.0258.06
5.1.40.0040.0288.05
5.1.30.0060.0288.40
5.1.20.0070.0268.41
5.1.10.0060.0248.14
5.1.00.0050.0258.14
5.0.50.0020.0246.62
5.0.40.0060.0246.47
5.0.30.0050.0306.29
5.0.20.0060.0176.26
5.0.10.0030.0206.24
5.0.00.0030.0316.23
4.4.90.0020.0204.78
4.4.80.0020.0164.75
4.4.70.0030.0164.76
4.4.60.0020.0164.75
4.4.50.0000.0174.77
4.4.40.0020.0254.71
4.4.30.0030.0154.76
4.4.20.0040.0144.84
4.4.10.0060.0124.85
4.4.00.0050.0234.76
4.3.110.0010.0174.67
4.3.100.0030.0164.66
4.3.90.0010.0164.63
4.3.80.0030.0244.59
4.3.70.0050.0174.63
4.3.60.0050.0124.63
4.3.50.0040.0144.63
4.3.40.0050.0214.53
4.3.30.0010.0173.29
4.3.20.0020.0163.26
4.3.10.0030.0143.22
4.3.00.0070.01316.50

preferences:
143.15 ms | 1394 KiB | 7 Q