3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array("0"=>array("xsd"=>"wer"),"1"=>array("123"=>"456")); echo json_encode($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)
5.4.310.0060.04012.50
5.4.300.0090.04012.50
5.4.290.0100.04312.49
5.4.280.0040.03912.39
5.4.270.0030.04912.39
5.4.260.0110.04912.39
5.4.250.0130.04612.39
5.4.240.0100.04912.39
5.4.230.0080.03912.38
5.4.220.0100.03412.38
5.4.210.0050.05412.38
5.4.200.0070.04312.38
5.4.190.0090.03412.38
5.4.180.0090.04512.38
5.4.170.0050.04512.39
5.4.160.0010.04912.38
5.4.150.0110.04812.38
5.4.140.0110.06612.07
5.4.130.0070.04912.05
5.4.120.0090.05012.02
5.4.110.0050.04512.01
5.4.100.0070.04412.01
5.4.90.0050.03712.01
5.4.80.0100.04412.01
5.4.70.0050.05212.01
5.4.60.0040.04012.01
5.4.50.0080.03512.01
5.4.40.0020.04311.99
5.4.30.0060.04111.99
5.4.20.0080.03711.98
5.4.10.0070.03911.99
5.4.00.0030.03811.48
5.3.290.0040.04212.80
5.3.280.0060.03912.71
5.3.270.0060.04112.72
5.3.260.0110.04512.72
5.3.250.0080.05512.72
5.3.240.0080.03712.72
5.3.230.0060.04312.71
5.3.220.0090.04012.68
5.3.210.0090.04212.68
5.3.200.0040.04312.68
5.3.190.0090.04012.68
5.3.180.0110.03412.67
5.3.170.0090.03412.67
5.3.160.0050.03812.67
5.3.150.0080.04012.67
5.3.140.0100.05012.66
5.3.130.0090.04512.66
5.3.120.0120.03812.66
5.3.110.0050.04312.66
5.3.100.0080.05012.12
5.3.90.0070.04512.08
5.3.80.0060.05012.08
5.3.70.0080.04912.08
5.3.60.0110.04412.07
5.3.50.0060.04212.00
5.3.40.0060.03712.00
5.3.30.0130.03611.95
5.3.20.0060.03811.73
5.3.10.0070.04011.70
5.3.00.0070.04011.68
5.2.170.0070.0409.18
5.2.160.0060.0339.18
5.2.150.0050.0349.18
5.2.140.0100.0289.18
5.2.130.0120.0259.14
5.2.120.0050.0299.14
5.2.110.0050.0309.15
5.2.100.0040.0319.14
5.2.90.0060.0349.14
5.2.80.0070.0439.14
5.2.70.0050.0469.14
5.2.60.0080.0549.09
5.2.50.0060.0379.06
5.2.40.0070.0279.03
5.2.30.0060.0379.01
5.2.20.0050.0299.01
5.2.10.0060.0388.92
5.2.00.0050.0338.78
5.1.60.0080.0278.07
5.1.50.0050.0388.06
5.1.40.0070.0258.05
5.1.30.0050.0278.40
5.1.20.0050.0318.41
5.1.10.0090.0368.14
5.1.00.0120.0328.14
5.0.50.0060.0276.62
5.0.40.0050.0286.47
5.0.30.0080.0526.29
5.0.20.0070.0326.27
5.0.10.0060.0296.24
5.0.00.0050.0446.23
4.4.90.0060.0204.78
4.4.80.0030.0244.76
4.4.70.0070.0234.76
4.4.60.0050.0214.75
4.4.50.0000.0204.77
4.4.40.0050.0294.71
4.4.30.0040.0224.76
4.4.20.0050.0184.84
4.4.10.0040.0234.85
4.4.00.0030.0484.76
4.3.110.0120.0334.67
4.3.100.0090.0334.66
4.3.90.0020.0254.63
4.3.80.0020.0344.59
4.3.70.0030.0224.63
4.3.60.0060.0194.63
4.3.50.0040.0214.63
4.3.40.0050.0334.54
4.3.30.0040.0203.28
4.3.20.0030.0163.25
4.3.10.0060.0193.22
4.3.00.0030.02015.91

preferences:
144.1 ms | 1394 KiB | 7 Q