3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = 1; namespace foo { $start = microtime(true); $i = $s; while($i--) { $a = true; } $end = microtime(true); echo 'Namespace true: ' . ($end-$start); $i = $s; while($i--) { $a = \true; } $end = microtime(true); echo 'Namespace \true: ' . ($end-$start); } namespace { echo 1; }

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)
5.4.320.0040.03812.46
5.4.310.0060.03912.46
5.4.300.0070.03712.46
5.4.290.0080.03812.46
5.4.280.0060.03612.36
5.4.270.0080.03912.36
5.4.260.0090.03412.36
5.4.250.0090.03812.36
5.4.240.0110.03712.36
5.4.230.0040.03912.35
5.4.220.0080.03512.35
5.4.210.0120.03212.35
5.4.200.0060.03812.35
5.4.190.0040.03812.34
5.4.180.0060.03712.34
5.4.170.0040.03912.36
5.4.160.0120.02912.36
5.4.150.0130.03312.35
5.4.140.0070.03812.04
5.4.130.0110.03712.02
5.4.120.0060.03811.98
5.4.110.0050.03611.97
5.4.100.0060.04011.97
5.4.90.0070.04611.98
5.4.80.0090.03611.97
5.4.70.0060.03411.97
5.4.60.0080.03711.97
5.4.50.0060.05011.98
5.4.40.0060.03711.96
5.4.30.0090.03511.95
5.4.20.0120.03711.96
5.4.10.0090.03311.96
5.4.00.0060.03711.45
5.3.290.0090.04212.80
5.3.280.0050.04012.71
5.3.270.0060.03912.72
5.3.260.0050.04312.72
5.3.250.0080.04912.72
5.3.240.0080.03612.72
5.3.230.0060.03812.71
5.3.220.0060.03812.68
5.3.210.0050.04112.68
5.3.200.0040.03912.68
5.3.190.0060.04012.68
5.3.180.0050.03712.67
5.3.170.0060.03812.67
5.3.160.0090.03412.68
5.3.150.0080.03912.68
5.3.140.0090.03412.66
5.3.130.0080.03712.65
5.3.120.0060.04012.66
5.3.110.0050.04112.66
5.3.100.0070.05112.12
5.3.90.0130.04312.08
5.3.80.0100.03312.07
5.3.70.0080.04012.08
5.3.60.0090.04712.07
5.3.50.0090.04712.00
5.3.40.0060.04412.00
5.3.30.0090.03511.95
5.3.20.0070.04511.72
5.3.10.0050.03911.69
5.3.00.0090.03311.68
5.2.170.0040.0319.18
5.2.160.0040.0309.18
5.2.150.0100.0409.18
5.2.140.0050.0339.18
5.2.130.0030.0309.14
5.2.120.0040.0299.14
5.2.110.0030.0309.14
5.2.100.0090.0289.14
5.2.90.0060.0299.14
5.2.80.0070.0359.14
5.2.70.0030.0349.14
5.2.60.0060.0369.09
5.2.50.0050.0379.06
5.2.40.0080.0359.04
5.2.30.0070.0329.02
5.2.20.0050.0319.00
5.2.10.0070.0308.93
5.2.00.0050.0358.79
5.1.60.0020.0288.07
5.1.50.0040.0248.07
5.1.40.0060.0268.05
5.1.30.0060.0268.39
5.1.20.0090.0318.42
5.1.10.0060.0288.14
5.1.00.0070.0338.14
5.0.50.0050.0266.63
5.0.40.0090.0216.48
5.0.30.0020.0416.29
5.0.20.0060.0176.26
5.0.10.0010.0236.24
5.0.00.0060.0286.23
4.4.90.0030.0154.78
4.4.80.0040.0144.75
4.4.70.0020.0164.75
4.4.60.0020.0174.75
4.4.50.0060.0134.77
4.4.40.0040.0274.70
4.4.30.0060.0234.76
4.4.20.0030.0154.85
4.4.10.0070.0194.85
4.4.00.0010.0294.76
4.3.110.0020.0174.67
4.3.100.0050.0164.66
4.3.90.0030.0144.63
4.3.80.0030.0254.59
4.3.70.0020.0204.63
4.3.60.0010.0194.63
4.3.50.0000.0224.63
4.3.40.0030.0234.54
4.3.30.0030.0163.28
4.3.20.0020.0183.26
4.3.10.0030.0143.22
4.3.00.0030.01313.95

preferences:
139.33 ms | 1394 KiB | 7 Q