3v4l.org

run code in 300+ PHP versions simultaneously
<?php private function removeBOM($str="") { if(substr($str, 0, 3) == pack("CCC", 0xef, 0xbb, 0xbf)) { $str = substr($str, 3); } return $str; }

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)
5.4.320.0060.03612.50
5.4.310.0080.03512.49
5.4.300.0080.03412.50
5.4.290.0050.03912.49
5.4.280.0070.03412.39
5.4.270.0070.03712.39
5.4.260.0080.03612.39
5.4.250.0060.03612.39
5.4.240.0090.03212.39
5.4.230.0080.03512.38
5.4.220.0070.03612.38
5.4.210.0020.04012.38
5.4.200.0040.04012.38
5.4.190.0040.03812.38
5.4.180.0050.03612.38
5.4.170.0100.03212.38
5.4.160.0070.03412.38
5.4.150.0080.03312.38
5.4.140.0070.03612.07
5.4.130.0070.03512.05
5.4.120.0080.03412.01
5.4.110.0060.03512.01
5.4.100.0070.03412.01
5.4.90.0070.03612.01
5.4.80.0070.03712.01
5.4.70.0100.04212.01
5.4.60.0050.03612.00
5.4.50.0050.04412.01
5.4.40.0050.03812.00
5.4.30.0070.03611.99
5.4.20.0060.03511.99
5.4.10.0060.03611.99
5.4.00.0080.03911.48
5.3.290.0100.03812.80
5.3.280.0050.04512.71
5.3.270.0080.04712.72
5.3.260.0050.04012.72
5.3.250.0040.04312.72
5.3.240.0070.03512.71
5.3.230.0090.03912.71
5.3.220.0060.03912.68
5.3.210.0050.04012.68
5.3.200.0090.03412.68
5.3.190.0050.03812.68
5.3.180.0040.03812.68
5.3.170.0070.03512.66
5.3.160.0050.03512.67
5.3.150.0070.03912.67
5.3.140.0030.03912.66
5.3.130.0070.03812.65
5.3.120.0030.04212.66
5.3.110.0050.05212.66
5.3.100.0080.03512.12
5.3.90.0070.04112.08
5.3.80.0090.03212.07
5.3.70.0060.04112.08
5.3.60.0070.03512.06
5.3.50.0040.03712.00
5.3.40.0050.03812.00
5.3.30.0090.03511.95
5.3.20.0050.03511.73
5.3.10.0050.03511.70
5.3.00.0040.03911.68
5.2.170.0050.0309.18
5.2.160.0040.0299.18
5.2.150.0050.0299.18
5.2.140.0060.0299.18
5.2.130.0060.0299.14
5.2.120.0040.0299.14
5.2.110.0060.0349.14
5.2.100.0090.0259.14
5.2.90.0030.0309.14
5.2.80.0050.0299.14
5.2.70.0040.0329.14
5.2.60.0050.0299.09
5.2.50.0050.0359.05
5.2.40.0060.0289.03
5.2.30.0030.0319.02
5.2.20.0050.0279.00
5.2.10.0000.0338.93
5.2.00.0050.0288.78
5.1.60.0040.0248.07
5.1.50.0040.0248.06
5.1.40.0030.0258.05
5.1.30.0040.0268.40
5.1.20.0050.0288.41
5.1.10.0030.0278.14
5.1.00.0020.0288.14
5.0.50.0030.0216.62
5.0.40.0020.0206.48
5.0.30.0050.0296.29
5.0.20.0030.0236.26
5.0.10.0040.0216.24
5.0.00.0030.0306.23
4.4.90.0050.0194.78
4.4.80.0030.0184.75
4.4.70.0030.0174.75
4.4.60.0060.0194.75
4.4.50.0010.0174.77
4.4.40.0020.0254.71
4.4.30.0050.0194.76
4.4.20.0060.0194.84
4.4.10.0010.0184.85
4.4.00.0030.0284.76
4.3.110.0020.0194.67
4.3.100.0020.0164.66
4.3.90.0040.0134.64
4.3.80.0020.0254.58
4.3.70.0050.0124.63
4.3.60.0020.0154.63
4.3.50.0010.0174.63
4.3.40.0040.0234.54
4.3.30.0040.0223.28
4.3.20.0040.0143.26
4.3.10.0040.0153.22
4.3.00.0100.01319.45

preferences:
142.8 ms | 1394 KiB | 7 Q