3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = &$b = 2; echo $a.' - '.$b; $a = 4; echo $a.' - '.$b; $b = 5; echo $a.' - '.$b;

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)
5.4.250.0120.04212.37
5.4.240.0090.04212.37
5.4.230.0080.04212.36
5.4.220.0100.05812.36
5.4.210.0080.04312.36
5.4.200.0080.04712.36
5.4.190.0120.06512.36
5.4.180.0100.04312.36
5.4.170.0080.04212.37
5.4.160.0080.04212.36
5.4.150.0050.04212.35
5.4.140.0070.03812.04
5.4.130.0080.04012.03
5.4.120.0040.05111.99
5.4.110.0070.04611.99
5.4.100.0080.04111.99
5.4.90.0040.04311.99
5.4.80.0060.04211.99
5.4.70.0090.03511.98
5.4.60.0120.05411.98
5.4.50.0130.04711.98
5.4.40.0070.03911.97
5.4.30.0090.03911.97
5.4.20.0070.03811.96
5.4.10.0090.04411.97
5.4.00.0070.04011.46
5.3.280.0070.03912.71
5.3.270.0040.04212.72
5.3.260.0050.04112.72
5.3.250.0040.03912.72
5.3.240.0070.04312.72
5.3.230.0080.04512.71
5.3.220.0100.04112.68
5.3.210.0070.04412.68
5.3.200.0050.03912.68
5.3.190.0080.03812.68
5.3.180.0070.04612.67
5.3.170.0090.03812.67
5.3.160.0100.03812.67
5.3.150.0080.03812.67
5.3.140.0070.04312.66
5.3.130.0090.05212.66
5.3.120.0110.04912.65
5.3.110.0080.04112.66
5.3.100.0060.04812.12
5.3.90.0050.03912.08
5.3.80.0090.03612.07
5.3.70.0050.03912.07
5.3.60.0070.04212.06
5.3.50.0080.03612.00
5.3.40.0080.04212.00
5.3.30.0090.03911.95
5.3.20.0080.04311.71
5.3.10.0090.04011.67
5.3.00.0060.04111.66
5.2.170.0070.0429.16
5.2.160.0060.0309.17
5.2.150.0050.0329.16
5.2.140.0070.0329.16
5.2.130.0080.0329.12
5.2.120.0040.0299.12
5.2.110.0070.0339.13
5.2.100.0050.0299.12
5.2.90.0040.0309.12
5.2.80.0050.0309.11
5.2.70.0050.0319.11
5.2.60.0050.0309.07
5.2.50.0050.0349.04
5.2.40.0040.0309.01
5.2.30.0070.0278.98
5.2.20.0050.0288.98
5.2.10.0050.0278.90
5.2.00.0040.0328.76
5.1.60.0060.0238.05
5.1.50.0050.0258.05
5.1.40.0040.0258.04
5.1.30.0050.0268.37
5.1.20.0040.0278.41
5.1.10.0050.0268.13
5.1.00.0040.0278.13
5.0.50.0040.0256.60
5.0.40.0040.0236.46
5.0.30.0040.0396.28
5.0.20.0050.0196.24
5.0.10.0030.0236.22
5.0.00.0040.0386.22
4.4.90.0020.0224.78
4.4.80.0050.0194.76
4.4.70.0020.0194.76
4.4.60.0030.0174.76
4.4.50.0020.0194.77
4.4.40.0040.0284.71
4.4.30.0040.0174.76
4.4.20.0040.0214.85
4.4.10.0020.0224.85
4.4.00.0040.0274.76
4.3.110.0050.0214.67
4.3.100.0060.0214.67
4.3.90.0040.0234.63
4.3.80.0040.0324.58
4.3.70.0030.0144.63
4.3.60.0020.0174.63
4.3.50.0030.0204.63
4.3.40.0060.0304.54
4.3.30.0040.0163.28
4.3.20.0010.0183.26
4.3.10.0020.0173.21
4.3.00.0130.01314.52

preferences:
138.84 ms | 1394 KiB | 7 Q