3v4l.org

run code in 300+ PHP versions simultaneously
<?php array A = [1, 2, 3]; array B = A; var_dump(B); A = 1; var_dump(B);

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)
5.4.340.0020.03712.01
5.4.320.0050.04212.50
5.4.310.0080.04712.49
5.4.300.0070.03512.50
5.4.290.0070.04312.49
5.4.280.0110.04012.39
5.4.270.0050.03612.39
5.4.260.0080.05012.39
5.4.250.0050.03912.39
5.4.240.0060.04312.39
5.4.230.0070.03712.38
5.4.220.0080.03912.38
5.4.210.0040.03612.38
5.4.200.0030.03912.38
5.4.190.0090.04112.38
5.4.180.0040.04312.38
5.4.170.0060.03612.39
5.4.160.0050.03612.38
5.4.150.0080.03312.38
5.4.140.0040.03812.07
5.4.130.0100.03112.05
5.4.120.0060.03412.02
5.4.110.0040.03612.01
5.4.100.0030.03712.01
5.4.90.0060.03612.01
5.4.80.0050.03712.01
5.4.70.0030.03712.01
5.4.60.0030.03712.01
5.4.50.0060.03412.01
5.4.40.0030.03711.99
5.4.30.0060.03511.99
5.4.20.0050.03811.99
5.4.10.0060.03711.99
5.4.00.0040.03711.48
5.3.290.0070.03712.80
5.3.280.0100.04112.70
5.3.270.0050.04412.72
5.3.260.0060.03912.72
5.3.250.0060.03612.71
5.3.240.0030.03912.72
5.3.230.0080.03412.70
5.3.220.0050.03712.68
5.3.210.0080.03712.68
5.3.200.0090.04212.68
5.3.190.0050.03712.68
5.3.180.0100.03212.68
5.3.170.0030.03912.67
5.3.160.0080.03512.67
5.3.150.0040.03912.67
5.3.140.0090.03912.66
5.3.130.0030.04112.66
5.3.120.0060.04312.66
5.3.110.0040.05312.66
5.3.100.0060.05412.12
5.3.90.0060.03712.09
5.3.80.0080.03312.07
5.3.70.0050.03712.07
5.3.60.0030.03912.07
5.3.50.0050.04112.00
5.3.40.0050.03712.00
5.3.30.0030.03711.95
5.3.20.0070.03211.72
5.3.10.0050.03411.70
5.3.00.0070.03411.68
5.2.170.0050.0299.18
5.2.160.0070.0269.18
5.2.150.0030.0319.18
5.2.140.0040.0309.18
5.2.130.0060.0289.13
5.2.120.0040.0299.14
5.2.110.0020.0329.15
5.2.100.0050.0289.14
5.2.90.0050.0299.14
5.2.80.0040.0319.14
5.2.70.0060.0309.14
5.2.60.0040.0309.09
5.2.50.0060.0299.06
5.2.40.0040.0399.03
5.2.30.0040.0299.01
5.2.20.0070.0319.00
5.2.10.0060.0298.93
5.2.00.0030.0318.78
5.1.60.0070.0328.07
5.1.50.0070.0328.06
5.1.40.0020.0328.05
5.1.30.0070.0328.40
5.1.20.0050.0298.42
5.1.10.0060.0318.14
5.1.00.0050.0398.14
5.0.50.0080.0296.62
5.0.40.0050.0276.47
5.0.30.0060.0396.29
5.0.20.0090.0226.26
5.0.10.0070.0226.23
5.0.00.0030.0346.23
4.4.90.0040.0144.78
4.4.80.0080.0284.76
4.4.70.0030.0154.75
4.4.60.0040.0144.75
4.4.50.0040.0194.77
4.4.40.0000.0284.71
4.4.30.0020.0164.76
4.4.20.0040.0144.84
4.4.10.0040.0144.85
4.4.00.0020.0264.76
4.3.110.0030.0164.66
4.3.100.0030.0184.67
4.3.90.0040.0204.64
4.3.80.0030.0244.58
4.3.70.0040.0134.63
4.3.60.0060.0174.63
4.3.50.0020.0194.63
4.3.40.0020.0274.54
4.3.30.0010.0173.29
4.3.20.0030.0153.27
4.3.10.0000.0193.21
4.3.00.0170.0308.68

preferences:
148.65 ms | 1394 KiB | 7 Q