3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = isset(''); var_dump($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)
5.4.280.0200.07812.36
5.4.270.0150.06212.36
5.4.260.0070.04412.36
5.4.250.0070.04812.36
5.4.240.0210.07212.36
5.4.230.0250.11612.36
5.4.220.0090.06912.35
5.4.210.0220.09212.35
5.4.200.0140.07112.36
5.4.190.0110.07212.35
5.4.180.0140.08712.35
5.4.170.0090.08412.36
5.4.160.0090.05712.36
5.4.150.0140.05312.35
5.4.140.0110.05612.04
5.4.130.0080.05112.02
5.4.120.0100.04911.98
5.4.110.0160.04811.98
5.4.100.0170.06111.98
5.4.90.0190.07511.98
5.4.80.0110.09611.98
5.4.70.0180.07811.98
5.4.60.0200.06311.98
5.4.50.0190.05711.98
5.4.40.0130.08211.96
5.4.30.0110.03911.96
5.4.20.0170.09511.96
5.4.10.0110.06311.96
5.4.00.0050.04911.45
5.3.280.0090.05112.71
5.3.270.0100.06012.72
5.3.260.0170.08212.72
5.3.250.0090.06112.72
5.3.240.0140.05812.72
5.3.230.0140.06412.71
5.3.220.0090.05212.68
5.3.210.0130.05712.68
5.3.200.0140.05912.68
5.3.190.0180.06512.67
5.3.180.0120.05512.67
5.3.170.0110.07512.67
5.3.160.0120.07912.68
5.3.150.0180.07412.68
5.3.140.0270.08412.66
5.3.130.0190.08712.66
5.3.120.0270.08212.66
5.3.110.0180.08912.66
5.3.100.0140.06712.12
5.3.90.0230.07712.09
5.3.80.0110.06812.08
5.3.70.0230.07612.07
5.3.60.0140.06312.06
5.3.50.0120.05612.00
5.3.40.0230.09412.00
5.3.30.0170.08311.94
5.3.20.0350.08711.70
5.3.10.0250.14911.67
5.3.00.0110.04411.66
5.2.170.0140.0539.15
5.2.160.0120.0519.15
5.2.150.0050.0499.15
5.2.140.0060.0409.14
5.2.130.0060.0439.11
5.2.120.0070.0429.11
5.2.110.0130.0649.11
5.2.100.0150.0769.12
5.2.90.0090.0399.11
5.2.80.0120.0389.11
5.2.70.0090.0649.11
5.2.60.0050.0489.05
5.2.50.0060.0439.04
5.2.40.0070.0529.00
5.2.30.0080.0518.99
5.2.20.0120.0568.97
5.2.10.0090.0368.90
5.2.00.0100.0508.76
5.1.60.0120.0328.04
5.1.50.0140.0698.04
5.1.40.0100.0468.03
5.1.30.0150.0558.37
5.1.20.0070.0408.40
5.1.10.0100.0388.13
5.1.00.0160.0858.12
5.0.50.0060.0286.60
5.0.40.0110.0316.46
5.0.30.0100.0586.27
5.0.20.0100.0236.24
5.0.10.0060.0216.21
5.0.00.0030.0366.21
4.4.90.0030.0304.78
4.4.80.0050.0194.76
4.4.70.0030.0214.76
4.4.60.0030.0174.76
4.4.50.0050.0244.77
4.4.40.0060.0474.71
4.4.30.0140.0384.76
4.4.20.0100.0224.84
4.4.10.0050.0564.85
4.4.00.0060.0254.76
4.3.110.0010.0184.67
4.3.100.0020.0314.67
4.3.90.0040.0184.64
4.3.80.0050.0274.58
4.3.70.0070.0284.63
4.3.60.0070.0384.62
4.3.50.0080.0294.63
4.3.40.0060.0234.54
4.3.30.0030.0173.27
4.3.20.0030.0233.25
4.3.10.0040.0183.21
4.3.00.0130.02010.37

preferences:
139.79 ms | 1398 KiB | 7 Q