3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "3hello"; $b = 2; $c = "hello" echo $a - $b; echo "\n"; echo $b - $a; echo "\n";echo "\n"; echo $c - $b; echo "\n"; echo $b - $c;

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)
5.4.320.0060.03612.50
5.4.310.0070.04812.49
5.4.300.0090.04312.50
5.4.290.0070.04012.49
5.4.280.0040.04212.39
5.4.270.0120.03712.39
5.4.260.0060.05012.39
5.4.250.0080.04712.39
5.4.240.0070.04312.39
5.4.230.0050.04212.38
5.4.220.0060.04012.38
5.4.210.0040.03912.38
5.4.200.0080.04112.38
5.4.190.0090.05112.38
5.4.180.0070.03512.38
5.4.170.0050.03812.38
5.4.160.0050.03912.38
5.4.150.0060.04012.38
5.4.140.0090.03912.07
5.4.130.0070.03812.05
5.4.120.0070.04212.02
5.4.110.0080.04412.01
5.4.100.0080.04012.01
5.4.90.0070.04112.01
5.4.80.0070.03812.01
5.4.70.0040.03812.01
5.4.60.0080.04312.01
5.4.50.0060.04112.00
5.4.40.0100.03612.00
5.4.30.0070.03611.99
5.4.20.0040.03811.99
5.4.10.0070.03511.99
5.4.00.0060.03811.48
5.3.290.0070.03812.80
5.3.280.0050.03812.71
5.3.270.0080.03712.72
5.3.260.0070.04312.72
5.3.250.0050.03912.72
5.3.240.0080.03812.72
5.3.230.0050.03812.71
5.3.220.0070.04212.68
5.3.210.0050.04112.68
5.3.200.0070.03612.68
5.3.190.0090.03912.67
5.3.180.0070.04012.67
5.3.170.0090.03712.67
5.3.160.0070.04312.67
5.3.150.0070.03712.67
5.3.140.0050.03712.66
5.3.130.0070.03912.66
5.3.120.0060.03912.66
5.3.110.0080.03812.66
5.3.100.0050.04212.12
5.3.90.0070.03812.08
5.3.80.0060.03812.07
5.3.70.0070.03612.08
5.3.60.0080.03812.06
5.3.50.0070.03612.00
5.3.40.0070.04312.00
5.3.30.0070.03911.95
5.3.20.0080.04211.72
5.3.10.0070.04611.70
5.3.00.0090.04611.68
5.2.170.0050.0329.18
5.2.160.0080.0289.18
5.2.150.0080.0369.18
5.2.140.0020.0339.18
5.2.130.0050.0299.14
5.2.120.0040.0309.14
5.2.110.0040.0339.14
5.2.100.0050.0349.14
5.2.90.0060.0359.14
5.2.80.0040.0339.14
5.2.70.0070.0299.14
5.2.60.0070.0309.09
5.2.50.0040.0349.06
5.2.40.0090.0279.04
5.2.30.0050.0389.01
5.2.20.0080.0399.01
5.2.10.0050.0368.93
5.2.00.0070.0388.78
5.1.60.0060.0308.07
5.1.50.0070.0258.06
5.1.40.0030.0258.05
5.1.30.0040.0278.40
5.1.20.0060.0258.42
5.1.10.0030.0268.14
5.1.00.0050.0288.14
5.0.50.0020.0236.62
5.0.40.0060.0226.48
5.0.30.0040.0406.29
5.0.20.0030.0236.27
5.0.10.0040.0196.24
5.0.00.0020.0326.23
4.4.90.0030.0154.78
4.4.80.0050.0154.76
4.4.70.0040.0144.76
4.4.60.0030.0154.76
4.4.50.0040.0154.77
4.4.40.0020.0274.71
4.4.30.0030.0184.76
4.4.20.0030.0154.84
4.4.10.0040.0174.85
4.4.00.0040.0234.76
4.3.110.0020.0154.67
4.3.100.0020.0154.66
4.3.90.0030.0144.63
4.3.80.0020.0254.59
4.3.70.0040.0144.63
4.3.60.0030.0184.63
4.3.50.0030.0164.63
4.3.40.0030.0244.54
4.3.30.0030.0163.28
4.3.20.0010.0173.26
4.3.10.0020.0163.22
4.3.00.0030.01715.95

preferences:
140.78 ms | 1394 KiB | 7 Q