3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('ss'=>'tt', 'www'=>'qqqq'); echo implode(', '$a);

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)
5.4.320.0100.03412.49
5.4.310.0080.04212.50
5.4.300.0080.04012.50
5.4.290.0070.03812.50
5.4.280.0080.03312.39
5.4.270.0080.03512.39
5.4.260.0070.03912.39
5.4.250.0050.04812.39
5.4.240.0030.03912.39
5.4.230.0070.04412.38
5.4.220.0080.04812.38
5.4.210.0060.05012.38
5.4.200.0080.03612.38
5.4.190.0090.04512.38
5.4.180.0060.05412.38
5.4.170.0070.04112.39
5.4.160.0080.03412.38
5.4.150.0070.03512.38
5.4.140.0070.03812.07
5.4.130.0040.04612.05
5.4.120.0040.04412.01
5.4.110.0080.03712.01
5.4.100.0060.03712.02
5.4.90.0070.03612.01
5.4.80.0050.03712.01
5.4.70.0030.03712.01
5.4.60.0030.04312.01
5.4.50.0070.03312.00
5.4.40.0090.03111.99
5.4.30.0080.03211.99
5.4.20.0040.03611.98
5.4.10.0050.03511.99
5.4.00.0090.03311.49
5.3.290.0060.03912.80
5.3.280.0040.03912.70
5.3.270.0030.04212.72
5.3.260.0070.03812.72
5.3.250.0070.03712.72
5.3.240.0070.03712.72
5.3.230.0080.03812.71
5.3.220.0070.03612.68
5.3.210.0060.03812.68
5.3.200.0060.03612.68
5.3.190.0120.04112.68
5.3.180.0100.03112.68
5.3.170.0070.04112.67
5.3.160.0080.03412.68
5.3.150.0050.04712.67
5.3.140.0060.03612.66
5.3.130.0070.03912.66
5.3.120.0090.04412.66
5.3.110.0080.03512.66
5.3.100.0070.04112.12
5.3.90.0070.04612.09
5.3.80.0090.04612.08
5.3.70.0100.03812.08
5.3.60.0100.03912.07
5.3.50.0070.03412.00
5.3.40.0080.03412.00
5.3.30.0040.04311.95
5.3.20.0040.04111.73
5.3.10.0060.03411.70
5.3.00.0060.03511.68
5.2.170.0090.0279.18
5.2.160.0050.0289.18
5.2.150.0060.0389.18
5.2.140.0070.0289.18
5.2.130.0040.0389.14
5.2.120.0110.0279.14
5.2.110.0050.0319.14
5.2.100.0090.0249.14
5.2.90.0050.0299.14
5.2.80.0050.0309.14
5.2.70.0060.0299.14
5.2.60.0040.0309.09
5.2.50.0030.0379.06
5.2.40.0050.0399.04
5.2.30.0070.0279.02
5.2.20.0040.0299.00
5.2.10.0070.0258.93
5.2.00.0050.0298.78
5.1.60.0040.0248.07
5.1.50.0030.0258.06
5.1.40.0090.0198.05
5.1.30.0080.0228.40
5.1.20.0030.0278.42
5.1.10.0070.0238.14
5.1.00.0070.0238.14
5.0.50.0050.0276.62
5.0.40.0020.0206.48
5.0.30.0060.0296.29
5.0.20.0050.0176.27
5.0.10.0040.0196.24
5.0.00.0050.0296.23
4.4.90.0040.0194.78
4.4.80.0040.0164.75
4.4.70.0010.0214.75
4.4.60.0050.0164.75
4.4.50.0030.0154.77
4.4.40.0030.0254.71
4.4.30.0030.0154.76
4.4.20.0030.0154.85
4.4.10.0030.0154.85
4.4.00.0030.0244.76
4.3.110.0010.0164.67
4.3.100.0020.0154.67
4.3.90.0000.0224.64
4.3.80.0040.0324.59
4.3.70.0010.0164.63
4.3.60.0020.0154.63
4.3.50.0030.0154.63
4.3.40.0050.0214.54
4.3.30.0010.0173.29
4.3.20.0030.0143.26
4.3.10.0050.0123.21
4.3.00.0100.01715.62

preferences:
133.3 ms | 1398 KiB | 7 Q