3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 5; $a = −−$i + $i++; var_dump($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)
5.4.350.0020.03912.01
5.4.340.0080.03612.01
5.4.320.0070.03812.50
5.4.310.0070.03912.49
5.4.300.0090.03812.50
5.4.290.0050.05212.49
5.4.280.0050.03812.39
5.4.270.0060.03812.39
5.4.260.0060.04012.39
5.4.250.0090.03912.39
5.4.240.0070.05212.39
5.4.230.0050.04412.38
5.4.220.0090.03812.38
5.4.210.0100.03512.38
5.4.200.0080.03912.38
5.4.190.0040.03912.38
5.4.180.0060.04212.38
5.4.170.0090.03812.39
5.4.160.0040.04112.38
5.4.150.0060.03712.38
5.4.140.0060.05312.07
5.4.130.0090.03912.05
5.4.120.0030.05612.01
5.4.110.0070.03712.01
5.4.100.0030.04012.01
5.4.90.0080.03712.01
5.4.80.0080.03812.01
5.4.70.0120.04012.00
5.4.60.0060.03912.01
5.4.50.0080.03312.00
5.4.40.0070.03612.00
5.4.30.0100.04511.99
5.4.20.0060.04611.98
5.4.10.0080.04811.99
5.4.00.0060.03911.48
5.3.290.0040.04212.80
5.3.280.0050.03912.71
5.3.270.0060.05312.72
5.3.260.0070.03912.71
5.3.250.0080.03612.72
5.3.240.0040.04312.72
5.3.230.0040.04112.71
5.3.220.0050.04312.68
5.3.210.0100.03812.68
5.3.200.0140.04112.68
5.3.190.0050.04012.67
5.3.180.0070.03912.67
5.3.170.0070.04012.67
5.3.160.0060.03812.68
5.3.150.0070.04112.68
5.3.140.0070.04712.66
5.3.130.0070.05412.66
5.3.120.0110.05012.66
5.3.110.0090.05012.66
5.3.100.0090.04912.12
5.3.90.0100.03812.09
5.3.80.0050.03912.08
5.3.70.0100.04412.07
5.3.60.0080.03712.06
5.3.50.0080.03712.00
5.3.40.0050.04112.00
5.3.30.0060.05911.95
5.3.20.0110.04611.73
5.3.10.0060.03711.70
5.3.00.0050.03811.68
5.2.170.0040.0339.18
5.2.160.0030.0379.18
5.2.150.0030.0399.18
5.2.140.0050.0349.18
5.2.130.0050.0429.14
5.2.120.0030.0309.14
5.2.110.0040.0389.14
5.2.100.0040.0319.14
5.2.90.0050.0309.14
5.2.80.0110.0279.14
5.2.70.0080.0299.14
5.2.60.0060.0359.09
5.2.50.0040.0339.06
5.2.40.0040.0319.04
5.2.30.0090.0299.01
5.2.20.0040.0309.01
5.2.10.0050.0268.92
5.2.00.0080.0248.78
5.1.60.0020.0258.07
5.1.50.0070.0298.06
5.1.40.0050.0358.04
5.1.30.0090.0348.39
5.1.20.0060.0378.42
5.1.10.0050.0368.14
5.1.00.0080.0258.14
5.0.50.0030.0226.62
5.0.40.0020.0206.48
5.0.30.0040.0316.29
5.0.20.0060.0176.26
5.0.10.0080.0186.24
5.0.00.0060.0376.23
4.4.90.0050.0204.78
4.4.80.0060.0244.75
4.4.70.0030.0184.75
4.4.60.0050.0254.75
4.4.50.0040.0164.77
4.4.40.0040.0284.71
4.4.30.0030.0174.76
4.4.20.0040.0154.85
4.4.10.0040.0154.85
4.4.00.0050.0234.76
4.3.110.0050.0204.67
4.3.100.0040.0204.66
4.3.90.0040.0214.63
4.3.80.0020.0264.59
4.3.70.0020.0164.63
4.3.60.0020.0154.63
4.3.50.0030.0164.63
4.3.40.0020.0334.54
4.3.30.0030.0173.28
4.3.20.0040.0193.26
4.3.10.0030.0153.21
4.3.00.0100.0236.79

preferences:
142.63 ms | 1386 KiB | 7 Q