3v4l.org

run code in 300+ PHP versions simultaneously
<?php $rest = substr("abcdef", 0, -1);$arr = array('a', 'b', 'c');echo "{$arr[1]";

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)
5.4.340.0070.03512.02
5.4.320.0070.03712.50
5.4.310.0050.04012.50
5.4.300.0020.04012.50
5.4.290.0050.03912.50
5.4.280.0030.03812.39
5.4.270.0050.03712.39
5.4.260.0050.03812.39
5.4.250.0040.03912.39
5.4.240.0040.03812.39
5.4.230.0060.03712.39
5.4.220.0090.03612.38
5.4.210.0060.05112.39
5.4.200.0080.03812.39
5.4.190.0070.03512.38
5.4.180.0060.03412.38
5.4.170.0030.03712.39
5.4.160.0090.03212.39
5.4.150.0040.03712.38
5.4.140.0050.03712.07
5.4.130.0080.03212.05
5.4.120.0050.03612.02
5.4.110.0080.03312.02
5.4.100.0050.03612.02
5.4.90.0050.03812.01
5.4.80.0070.04712.01
5.4.70.0140.04012.01
5.4.60.0100.05612.01
5.4.50.0050.04112.00
5.4.40.0040.03912.00
5.4.30.0060.04611.99
5.4.20.0110.05411.99
5.4.10.0080.03511.99
5.4.00.0100.05111.48
5.3.290.0090.06312.80
5.3.280.0190.05712.71
5.3.270.0120.06412.73
5.3.260.0130.06212.71
5.3.250.0110.05412.72
5.3.240.0110.05512.72
5.3.230.0060.04712.71
5.3.220.0050.03912.68
5.3.210.0040.04312.68
5.3.200.0070.03512.68
5.3.190.0050.03812.68
5.3.180.0040.04112.67
5.3.170.0040.04112.67
5.3.160.0030.04112.68
5.3.150.0060.03612.68
5.3.140.0070.03512.66
5.3.130.0040.04212.65
5.3.120.0070.04512.66
5.3.110.0040.04212.66
5.3.100.0040.04012.12
5.3.90.0050.03712.08
5.3.80.0060.03712.08
5.3.70.0070.04312.07
5.3.60.0120.04012.06
5.3.50.0050.04012.00
5.3.40.0040.04012.00
5.3.30.0090.03211.95
5.3.20.0050.03511.73
5.3.10.0040.04111.70
5.3.00.0050.03611.68
5.2.170.0040.0319.19
5.2.160.0020.0319.18
5.2.150.0020.0339.18
5.2.140.0060.0289.18
5.2.130.0060.0349.14
5.2.120.0030.0299.14
5.2.110.0020.0309.15
5.2.100.0030.0299.14
5.2.90.0050.0289.14
5.2.80.0030.0319.14
5.2.70.0050.0309.14
5.2.60.0040.0349.09
5.2.50.0020.0329.07
5.2.40.0040.0299.04
5.2.30.0010.0339.02
5.2.20.0040.0299.00
5.2.10.0030.0298.92
5.2.00.0050.0288.78
5.1.60.0030.0248.07
5.1.50.0050.0238.06
5.1.40.0030.0258.04
5.1.30.0030.0278.40
5.1.20.0080.0228.42
5.1.10.0010.0288.14
5.1.00.0040.0308.14
5.0.50.0040.0206.62
5.0.40.0040.0186.48
5.0.30.0030.0316.30
5.0.20.0040.0196.26
5.0.10.0040.0196.25
5.0.00.0040.0296.23
4.4.90.0030.0154.78
4.4.80.0030.0144.76
4.4.70.0040.0144.76
4.4.60.0010.0164.76
4.4.50.0030.0144.77
4.4.40.0020.0254.71
4.4.30.0030.0154.75
4.4.20.0020.0164.85
4.4.10.0040.0134.85
4.4.00.0030.0244.76
4.3.110.0020.0164.67
4.3.100.0020.0154.66
4.3.90.0020.0154.63
4.3.80.0030.0254.59
4.3.70.0000.0174.63
4.3.60.0040.0164.62
4.3.50.0020.0164.63
4.3.40.0020.0244.54
4.3.30.0010.0163.29
4.3.20.0030.0163.27
4.3.10.0030.0153.22
4.3.00.0030.0206.86

preferences:
145.58 ms | 1394 KiB | 7 Q