3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = array("a"=>123); if ( isset($test["a"]) ) echo $test["a"]*2;

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)
5.4.310.0050.04912.49
5.4.300.0070.04212.50
5.4.290.0080.03812.49
5.4.280.0090.03512.39
5.4.270.0090.04412.39
5.4.260.0070.04612.39
5.4.250.0040.04012.39
5.4.240.0070.04012.39
5.4.230.0100.03612.38
5.4.220.0080.04012.38
5.4.210.0110.05212.38
5.4.200.0110.04412.38
5.4.190.0190.05712.38
5.4.180.0080.03512.38
5.4.170.0080.03312.38
5.4.160.0050.03912.38
5.4.150.0100.04112.38
5.4.140.0090.04412.07
5.4.130.0070.03712.05
5.4.120.0110.03812.02
5.4.110.0070.04112.01
5.4.100.0110.04712.01
5.4.90.0110.04512.01
5.4.80.0110.04712.01
5.4.70.0040.03812.01
5.4.60.0070.04312.00
5.4.50.0090.03912.01
5.4.40.0050.04512.00
5.4.30.0080.03511.99
5.4.20.0070.03511.99
5.4.10.0050.03811.99
5.4.00.0080.03611.48
5.3.280.0070.04012.71
5.3.270.0060.04112.73
5.3.260.0070.04112.72
5.3.250.0130.04312.72
5.3.240.0050.04312.72
5.3.230.0050.04312.71
5.3.220.0070.03812.68
5.3.210.0110.04612.68
5.3.200.0090.04612.68
5.3.190.0110.04212.68
5.3.180.0060.03712.68
5.3.170.0080.03512.67
5.3.160.0040.04212.67
5.3.150.0100.04112.67
5.3.140.0060.04212.66
5.3.130.0090.05612.66
5.3.120.0090.04712.65
5.3.110.0080.03812.66
5.3.100.0020.04512.12
5.3.90.0070.03712.08
5.3.80.0060.04512.07
5.3.70.0080.04212.08
5.3.60.0120.03312.07
5.3.50.0060.03812.00
5.3.40.0050.04012.00
5.3.30.0030.04211.95
5.3.20.0060.03711.72
5.3.10.0070.04211.70
5.3.00.0090.04311.68
5.2.170.0060.0329.18
5.2.160.0050.0319.18
5.2.150.0040.0329.18
5.2.140.0070.0299.18
5.2.130.0050.0309.14
5.2.120.0070.0289.14
5.2.110.0050.0339.15
5.2.100.0080.0349.14
5.2.90.0100.0349.14
5.2.80.0050.0359.14
5.2.70.0050.0469.14
5.2.60.0080.0379.09
5.2.50.0070.0359.06
5.2.40.0050.0369.04
5.2.30.0040.0319.02
5.2.20.0060.0389.00
5.2.10.0070.0278.92
5.2.00.0040.0298.78
5.1.60.0040.0248.07
5.1.50.0050.0288.06
5.1.40.0090.0218.05
5.1.30.0060.0278.40
5.1.20.0050.0288.42
5.1.10.0040.0278.14
5.1.00.0050.0278.14
5.0.50.0060.0266.63
5.0.40.0050.0356.48
5.0.30.0100.0406.29
5.0.20.0090.0256.26
5.0.10.0040.0546.24
5.0.00.0070.0406.23
4.4.90.0040.0194.78
4.4.80.0050.0234.76
4.4.70.0030.0184.76
4.4.60.0040.0164.75
4.4.50.0040.0164.77
4.4.40.0040.0254.71
4.4.30.0000.0244.76
4.4.20.0030.0224.84
4.4.10.0020.0184.85
4.4.00.0060.0254.76
4.3.110.0040.0144.67
4.3.100.0050.0134.66
4.3.90.0060.0164.64
4.3.80.0020.0274.59
4.3.70.0030.0144.63
4.3.60.0040.0144.63
4.3.50.0010.0184.63
4.3.40.0030.0274.54
4.3.30.0020.0223.29
4.3.20.0030.0163.26
4.3.10.0010.0173.21
4.3.00.0000.0237.93

preferences:
136.7 ms | 1394 KiB | 7 Q