3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'aaa','bbb'; echo $a;

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)
5.4.290.0050.04112.49
5.4.280.0060.04212.39
5.4.270.0060.04312.39
5.4.260.0070.04512.39
5.4.250.0060.04612.39
5.4.240.0040.04212.39
5.4.230.0080.03512.38
5.4.220.0060.03612.38
5.4.210.0040.03712.38
5.4.200.0030.05012.38
5.4.190.0080.04512.38
5.4.180.0040.04212.38
5.4.170.0090.03412.38
5.4.160.0090.03312.38
5.4.150.0090.04012.38
5.4.140.0080.04012.07
5.4.130.0050.03812.05
5.4.120.0070.03612.02
5.4.110.0100.05712.01
5.4.100.0060.04712.01
5.4.90.0120.06412.01
5.4.80.0110.04812.01
5.4.70.0100.05412.01
5.4.60.0150.06912.01
5.4.50.0140.05612.01
5.4.40.0130.05911.99
5.4.30.0080.06411.99
5.4.20.0080.04311.99
5.4.10.0080.04511.99
5.4.00.0050.04611.49
5.3.280.0100.04812.71
5.3.270.0080.04812.72
5.3.260.0110.05412.72
5.3.250.0110.04412.71
5.3.240.0120.05012.72
5.3.230.0150.04512.71
5.3.220.0100.05112.68
5.3.210.0060.05712.68
5.3.200.0030.05712.68
5.3.190.0060.04512.67
5.3.180.0100.03912.67
5.3.170.0080.04112.67
5.3.160.0090.03712.67
5.3.150.0080.04012.67
5.3.140.0130.03712.66
5.3.130.0070.04212.65
5.3.120.0130.04412.66
5.3.110.0140.04012.66
5.3.100.0090.04412.12
5.3.90.0120.05012.08
5.3.80.0100.04812.08
5.3.70.0070.05512.07
5.3.60.0110.05012.07
5.3.50.0110.04912.00
5.3.40.0100.04812.00
5.3.30.0090.04111.95
5.3.20.0050.04311.72
5.3.10.0050.03911.70
5.3.00.0090.03811.68
5.2.170.0050.0319.18
5.2.160.0070.0319.18
5.2.150.0080.0329.18
5.2.140.0060.0359.18
5.2.130.0130.0369.14
5.2.120.0120.0519.14
5.2.110.0090.0389.15
5.2.100.0050.0409.14
5.2.90.0230.0889.14
5.2.80.0090.0439.13
5.2.70.0090.0469.14
5.2.60.0070.0509.09
5.2.50.0060.0649.06
5.2.40.0080.0829.04
5.2.30.0060.0569.02
5.2.20.0050.0469.00
5.2.10.0060.0408.93
5.2.00.0110.0528.79
5.1.60.0030.0378.07
5.1.50.0080.0368.06
5.1.40.0050.0428.05
5.1.30.0060.0428.40
5.1.20.0200.0818.42
5.1.10.0130.0538.14
5.1.00.0070.0508.14
5.0.50.0050.0306.62
5.0.40.0080.0406.48
5.0.30.0050.0426.29
5.0.20.0060.0266.27
5.0.10.0050.0276.24
5.0.00.0060.0416.23
4.4.90.0060.0224.78
4.4.80.0030.0234.75
4.4.70.0110.0304.76
4.4.60.0070.0174.75
4.4.50.0010.0194.77
4.4.40.0040.0274.71
4.4.30.0020.0234.76
4.4.20.0030.0194.84
4.4.10.0030.0194.84
4.4.00.0040.0454.76
4.3.110.0030.0194.67
4.3.100.0050.0154.67
4.3.90.0040.0184.63
4.3.80.0040.0314.58
4.3.70.0030.0214.63
4.3.60.0020.0224.63
4.3.50.0050.0254.63
4.3.40.0030.0334.53
4.3.30.0010.0233.28
4.3.20.0030.0213.25
4.3.10.0020.0223.21
4.3.00.0130.0236.66

preferences:
147.29 ms | 1394 KiB | 7 Q