3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($string) { $string = str_replace(' ', '', $string); return preg_replace('/^A-Za-z0-9/', '', string); echo "wat";

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)
5.4.310.0030.04312.51
5.4.300.0100.03512.52
5.4.290.0040.04212.51
5.4.280.0060.03512.40
5.4.270.0110.03812.40
5.4.260.0050.03912.41
5.4.250.0090.03612.41
5.4.240.0080.03512.41
5.4.230.0140.03212.40
5.4.220.0070.03812.39
5.4.210.0070.04112.40
5.4.200.0050.04212.40
5.4.190.0060.03712.39
5.4.180.0070.03912.39
5.4.170.0120.05012.41
5.4.160.0090.05712.40
5.4.150.0120.04812.39
5.4.140.0060.04512.09
5.4.130.0060.04112.07
5.4.120.0080.04612.03
5.4.110.0080.04912.02
5.4.100.0110.05012.03
5.4.90.0060.04112.02
5.4.80.0070.03812.03
5.4.70.0040.03812.02
5.4.60.0060.03612.02
5.4.50.0080.03612.02
5.4.40.0060.03512.01
5.4.30.0090.03812.01
5.4.20.0050.04412.00
5.4.10.0080.03612.01
5.4.00.0060.04011.50
5.3.280.0080.03512.71
5.3.270.0050.04012.72
5.3.260.0050.04312.72
5.3.250.0060.04012.72
5.3.240.0080.04012.72
5.3.230.0050.04012.71
5.3.220.0050.03912.68
5.3.210.0060.03912.68
5.3.200.0080.03512.68
5.3.190.0040.04012.68
5.3.180.0060.03712.67
5.3.170.0090.04912.67
5.3.160.0110.04812.68
5.3.150.0070.03912.67
5.3.140.0030.03912.66
5.3.130.0050.03912.65
5.3.120.0070.03812.65
5.3.110.0060.03912.66
5.3.100.0050.03712.12
5.3.90.0060.03812.11
5.3.80.0080.03412.10
5.3.70.0090.04012.10
5.3.60.0070.04712.09
5.3.50.0060.04912.02
5.3.40.0070.04012.02
5.3.30.0100.04111.98
5.3.20.0060.04011.76
5.3.10.0050.03511.74
5.3.00.0090.03411.72
5.2.170.0040.0319.22
5.2.160.0040.0379.22
5.2.150.0070.0279.22
5.2.140.0040.0339.21
5.2.130.0080.0259.18
5.2.120.0060.0269.18
5.2.110.0080.0269.18
5.2.100.0060.0289.18
5.2.90.0070.0289.18
5.2.80.0060.0309.18
5.2.70.0070.0299.17
5.2.60.0050.0309.13
5.2.50.0050.0309.09
5.2.40.0020.0319.07
5.2.30.0070.0299.05
5.2.20.0070.0269.04
5.2.10.0030.0298.95
5.2.00.0020.0318.81
5.1.60.0060.0238.09
5.1.50.0030.0308.09
5.1.40.0060.0248.07
5.1.30.0060.0278.42
5.1.20.0080.0258.44
5.1.10.0050.0268.17
5.1.00.0010.0308.16
5.0.50.0040.0216.64
5.0.40.0030.0216.51
5.0.30.0070.0296.32
5.0.20.0030.0216.29
5.0.10.0030.0226.26
5.0.00.0040.0326.25
4.4.90.0010.0174.78
4.4.80.0040.0154.76
4.4.70.0030.0164.75
4.4.60.0030.0164.75
4.4.50.0030.0194.77
4.4.40.0030.0264.71
4.4.30.0020.0174.76
4.4.20.0020.0164.84
4.4.10.0040.0164.85
4.4.00.0040.0254.76
4.3.110.0070.0194.66
4.3.100.0020.0224.66
4.3.90.0040.0204.63
4.3.80.0070.0274.58
4.3.70.0030.0214.63
4.3.60.0030.0214.63
4.3.50.0020.0224.62
4.3.40.0020.0334.54
4.3.30.0040.0203.30
4.3.20.0010.0223.27
4.3.10.0020.0213.24
4.3.00.0070.01315.90

preferences:
141.17 ms | 1394 KiB | 7 Q