3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1]; $foo = isset($a[1]) ? $a[1] :; var_dump($foo);

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)
5.4.340.0100.06112.01
5.4.320.0130.06612.49
5.4.310.0250.08212.49
5.4.300.0120.07312.50
5.4.290.0090.05912.50
5.4.280.0210.09912.39
5.4.270.0160.11512.39
5.4.260.0140.10212.39
5.4.250.0150.06112.39
5.4.240.0080.05112.39
5.4.230.0100.06712.38
5.4.220.0080.04612.38
5.4.210.0090.04112.38
5.4.200.0130.04112.38
5.4.190.0110.05612.38
5.4.180.0080.04212.38
5.4.170.0070.04812.39
5.4.160.0080.05512.38
5.4.150.0110.03412.38
5.4.140.0070.05212.07
5.4.130.0070.04812.05
5.4.120.0110.04812.02
5.4.110.0180.11512.02
5.4.100.0160.08912.01
5.4.90.0090.04912.01
5.4.80.0090.04612.01
5.4.70.0090.04012.00
5.4.60.0050.04012.01
5.4.50.0140.06112.01
5.4.40.0040.03911.99
5.4.30.0110.04111.99
5.4.20.0070.03711.99
5.4.10.0070.04511.99
5.4.00.0040.04311.49
5.3.290.0030.04412.80
5.3.280.0110.04412.71
5.3.270.0060.04912.72
5.3.260.0060.04112.72
5.3.250.0070.03912.72
5.3.240.0080.03812.72
5.3.230.0070.04412.70
5.3.220.0090.08112.68
5.3.210.0070.04112.68
5.3.200.0060.03912.68
5.3.190.0110.05612.68
5.3.180.0110.05012.67
5.3.170.0190.04612.67
5.3.160.0100.05312.68
5.3.150.0090.03912.67
5.3.140.0080.04312.66
5.3.130.0050.04912.65
5.3.120.0100.04012.66
5.3.110.0070.04812.66
5.3.100.0080.04112.12
5.3.90.0080.03912.08
5.3.80.0100.03812.08
5.3.70.0080.04312.07
5.3.60.0090.04412.06
5.3.50.0060.05012.00
5.3.40.0090.04712.00
5.3.30.0070.04911.95
5.3.20.0080.03711.73
5.3.10.0110.03511.70
5.3.00.0090.04911.68
5.2.170.0110.0429.18
5.2.160.0070.0469.18
5.2.150.0070.0339.18
5.2.140.0080.0369.18
5.2.130.0080.0319.14
5.2.120.0160.0489.14
5.2.110.0080.0309.15
5.2.100.0090.0279.14
5.2.90.0080.0329.14
5.2.80.0040.0359.14
5.2.70.0050.0329.14
5.2.60.0090.0289.09
5.2.50.0050.0329.06
5.2.40.0040.0349.03
5.2.30.0070.0389.02
5.2.20.0070.0299.00
5.2.10.0060.0318.92
5.2.00.0030.0318.79
5.1.60.0040.0258.07
5.1.50.0050.0258.06
5.1.40.0060.0258.05
5.1.30.0060.0278.40
5.1.20.0050.0288.42
5.1.10.0040.0298.14
5.1.00.0060.0278.14
5.0.50.0060.0206.62
5.0.40.0030.0226.47
5.0.30.0060.0306.29
5.0.20.0040.0226.26
5.0.10.0020.0236.24
5.0.00.0040.0326.23
4.4.90.0030.0174.78
4.4.80.0050.0144.76
4.4.70.0020.0174.75
4.4.60.0010.0184.75
4.4.50.0050.0154.77
4.4.40.0020.0294.71
4.4.30.0030.0164.76
4.4.20.0030.0194.84
4.4.10.0020.0314.85
4.4.00.0040.0484.76
4.3.110.0070.0374.67
4.3.100.0020.0204.67
4.3.90.0040.0194.63
4.3.80.0050.0244.59
4.3.70.0040.0164.63
4.3.60.0020.0154.63
4.3.50.0000.0204.63
4.3.40.0020.0254.54
4.3.30.0030.0163.28
4.3.20.0010.0173.26
4.3.10.0030.0153.21
4.3.00.0200.0237.00

preferences:
140.59 ms | 1394 KiB | 7 Q