3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1, 2]; list($a, $b) = $a;   // OLD: $a = 1, $b = 2 // NEW: $a = 1, $b = null + "Undefined index 1"   $b = [1, 2]; list($a, $b) = $b; // OLD: $a = null + "Undefined index 0", $b = 2 // NEW: $a = 1, $b = 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)
5.4.320.0040.03812.50
5.4.310.0040.03912.49
5.4.300.0050.03712.50
5.4.290.0060.03712.50
5.4.280.0070.03312.39
5.4.270.0060.03812.39
5.4.260.0080.03512.39
5.4.250.0050.03712.39
5.4.240.0090.03612.39
5.4.230.0040.03812.38
5.4.220.0020.04512.38
5.4.210.0080.03612.38
5.4.200.0120.04112.38
5.4.190.0080.04012.38
5.4.180.0090.03812.38
5.4.170.0070.03412.39
5.4.160.0040.03712.39
5.4.150.0070.03412.38
5.4.140.0060.03612.07
5.4.130.0060.03512.05
5.4.120.0030.03812.02
5.4.110.0050.03612.01
5.4.100.0050.03512.01
5.4.90.0070.03512.01
5.4.80.0060.03712.01
5.4.70.0020.03812.01
5.4.60.0080.03312.00
5.4.50.0070.04012.01
5.4.40.0040.03612.00
5.4.30.0070.03411.99
5.4.20.0060.03511.99
5.4.10.0070.03411.99
5.4.00.0060.03511.48
5.3.290.0060.03912.80
5.3.280.0050.04512.71
5.3.270.0110.03412.72
5.3.260.0050.03912.72
5.3.250.0040.03712.72
5.3.240.0070.03512.72
5.3.230.0060.03712.71
5.3.220.0040.03912.68
5.3.210.0070.03712.68
5.3.200.0040.03812.68
5.3.190.0050.03812.67
5.3.180.0060.03612.67
5.3.170.0080.03412.67
5.3.160.0060.03512.68
5.3.150.0080.03412.68
5.3.140.0090.03312.66
5.3.130.0040.04112.66
5.3.120.0060.03812.66
5.3.110.0070.03812.66
5.3.100.0050.03812.11
5.3.90.0050.03712.08
5.3.80.0110.03112.08
5.3.70.0050.03612.08
5.3.60.0100.03112.06
5.3.50.0070.03812.00
5.3.40.0060.03512.00
5.3.30.0050.03511.95
5.3.20.0040.03611.73
5.3.10.0040.03611.70
5.3.00.0040.03811.68
5.2.170.0050.0309.18
5.2.160.0070.0299.18
5.2.150.0040.0329.18
5.2.140.0030.0329.18
5.2.130.0080.0269.14
5.2.120.0050.0289.14
5.2.110.0050.0349.14
5.2.100.0070.0259.14
5.2.90.0090.0249.14
5.2.80.0000.0349.14
5.2.70.0070.0279.14
5.2.60.0040.0309.09
5.2.50.0030.0319.05
5.2.40.0050.0289.04
5.2.30.0040.0309.01
5.2.20.0050.0289.00
5.2.10.0050.0278.92
5.2.00.0030.0298.78
5.1.60.0070.0218.07
5.1.50.0050.0238.06
5.1.40.0040.0248.05
5.1.30.0040.0278.39
5.1.20.0030.0328.41
5.1.10.0050.0258.14
5.1.00.0040.0268.14
5.0.50.0030.0216.63
5.0.40.0060.0166.48
5.0.30.0050.0316.29
5.0.20.0020.0206.26
5.0.10.0030.0196.23
5.0.00.0040.0296.23
4.4.90.0050.0134.78
4.4.80.0060.0134.75
4.4.70.0030.0164.75
4.4.60.0030.0154.76
4.4.50.0020.0164.77
4.4.40.0020.0274.71
4.4.30.0050.0134.76
4.4.20.0040.0144.84
4.4.10.0020.0174.85
4.4.00.0010.0274.76
4.3.110.0040.0144.67
4.3.100.0050.0184.67
4.3.90.0020.0204.63
4.3.80.0030.0244.58
4.3.70.0040.0164.63
4.3.60.0020.0174.63
4.3.50.0020.0164.62
4.3.40.0020.0264.54
4.3.30.0020.0173.29
4.3.20.0030.0143.26
4.3.10.0020.0163.22
4.3.00.0030.0207.09

preferences:
143.28 ms | 1394 KiB | 7 Q