3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = ["a"=>123]; echo isset($test["a"]) ? $test["a"]*2 : "Not Set.";

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)
5.4.310.0100.03912.49
5.4.300.0080.04912.49
5.4.290.0060.03812.49
5.4.280.0060.03912.39
5.4.270.0090.03312.39
5.4.260.0070.03712.39
5.4.250.0110.03212.39
5.4.240.0050.04312.39
5.4.230.0100.03812.38
5.4.220.0060.03512.38
5.4.210.0060.03712.38
5.4.200.0100.03912.38
5.4.190.0040.04212.38
5.4.180.0070.03812.38
5.4.170.0060.03812.39
5.4.160.0030.03712.38
5.4.150.0080.03312.38
5.4.140.0080.03312.07
5.4.130.0130.03112.05
5.4.120.0070.03812.01
5.4.110.0040.03812.01
5.4.100.0060.03512.01
5.4.90.0060.03712.01
5.4.80.0010.04112.02
5.4.70.0050.04112.01
5.4.60.0030.03812.01
5.4.50.0080.04012.01
5.4.40.0090.03811.99
5.4.30.0140.03111.99
5.4.20.0090.03311.98
5.4.10.0030.03911.99
5.4.00.0060.03511.48
5.3.280.0040.04012.71
5.3.270.0100.03512.72
5.3.260.0050.04212.72
5.3.250.0070.03612.72
5.3.240.0070.03612.71
5.3.230.0080.03912.70
5.3.220.0040.03912.68
5.3.210.0070.04012.68
5.3.200.0090.03612.68
5.3.190.0060.04512.68
5.3.180.0060.04712.68
5.3.170.0060.03612.67
5.3.160.0080.03712.68
5.3.150.0040.04012.68
5.3.140.0050.03712.66
5.3.130.0050.03912.66
5.3.120.0040.04012.66
5.3.110.0080.03512.66
5.3.100.0070.03412.12
5.3.90.0080.03612.08
5.3.80.0060.03812.07
5.3.70.0070.03512.08
5.3.60.0060.03612.06
5.3.50.0060.03912.00
5.3.40.0040.03912.00
5.3.30.0030.04211.95
5.3.20.0100.03211.73
5.3.10.0070.03611.70
5.3.00.0080.03411.68
5.2.170.0080.0289.18
5.2.160.0040.0369.18
5.2.150.0050.0299.18
5.2.140.0040.0319.18
5.2.130.0050.0389.14
5.2.120.0050.0319.14
5.2.110.0060.0359.15
5.2.100.0070.0379.14
5.2.90.0010.0329.14
5.2.80.0030.0319.14
5.2.70.0040.0299.14
5.2.60.0080.0269.09
5.2.50.0020.0319.06
5.2.40.0030.0299.04
5.2.30.0050.0359.01
5.2.20.0040.0359.00
5.2.10.0060.0288.93
5.2.00.0050.0298.79
5.1.60.0060.0298.07
5.1.50.0050.0338.06
5.1.40.0020.0268.05
5.1.30.0040.0318.40
5.1.20.0050.0268.42
5.1.10.0040.0268.14
5.1.00.0070.0248.14
5.0.50.0060.0216.63
5.0.40.0030.0196.48
5.0.30.0050.0336.29
5.0.20.0070.0166.27
5.0.10.0050.0266.24
5.0.00.0010.0346.23
4.4.90.0030.0174.78
4.4.80.0040.0154.75
4.4.70.0070.0124.75
4.4.60.0020.0184.76
4.4.50.0060.0134.77
4.4.40.0000.0294.70
4.4.30.0030.0154.75
4.4.20.0040.0144.85
4.4.10.0030.0154.85
4.4.00.0030.0294.76
4.3.110.0050.0184.67
4.3.100.0020.0194.66
4.3.90.0010.0154.63
4.3.80.0040.0244.59
4.3.70.0030.0134.63
4.3.60.0010.0284.62
4.3.50.0020.0174.62
4.3.40.0070.0284.54
4.3.30.0020.0153.29
4.3.20.0020.0183.26
4.3.10.0040.0163.21
4.3.00.0000.0237.59

preferences:
139.59 ms | 1394 KiB | 7 Q