3v4l.org

run code in 300+ PHP versions simultaneously
<?php A = [1, 2, 3]; 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)
5.4.340.0060.03512.01
5.4.320.0080.03912.49
5.4.310.0060.04112.49
5.4.300.0050.03912.50
5.4.290.0030.04312.49
5.4.280.0060.03512.39
5.4.270.0030.04312.39
5.4.260.0080.03812.39
5.4.250.0040.03912.39
5.4.240.0060.04112.39
5.4.230.0050.04212.38
5.4.220.0070.03412.38
5.4.210.0060.04012.38
5.4.200.0060.04112.38
5.4.190.0080.03412.38
5.4.180.0040.04412.38
5.4.170.0070.04412.38
5.4.160.0080.03712.38
5.4.150.0080.03512.38
5.4.140.0050.03912.07
5.4.130.0040.03812.05
5.4.120.0060.03512.01
5.4.110.0100.03712.01
5.4.100.0050.03612.01
5.4.90.0040.04912.01
5.4.80.0100.04212.01
5.4.70.0080.03212.01
5.4.60.0080.03312.01
5.4.50.0040.04712.01
5.4.40.0080.05011.99
5.4.30.0080.03311.99
5.4.20.0050.03411.98
5.4.10.0050.04111.99
5.4.00.0090.03811.48
5.3.290.0110.03712.80
5.3.280.0030.04012.71
5.3.270.0070.04112.72
5.3.260.0080.03912.72
5.3.250.0060.04412.72
5.3.240.0100.03812.72
5.3.230.0110.03512.71
5.3.220.0070.03612.68
5.3.210.0060.03912.68
5.3.200.0080.03512.68
5.3.190.0070.03612.68
5.3.180.0070.03512.67
5.3.170.0040.04212.67
5.3.160.0070.03512.68
5.3.150.0030.04412.68
5.3.140.0080.03612.66
5.3.130.0080.04712.66
5.3.120.0060.04312.66
5.3.110.0070.03912.66
5.3.100.0050.03712.12
5.3.90.0040.04312.08
5.3.80.0050.03712.08
5.3.70.0080.03412.07
5.3.60.0080.03412.06
5.3.50.0060.03512.00
5.3.40.0050.03612.00
5.3.30.0070.04211.95
5.3.20.0060.03911.73
5.3.10.0030.03611.70
5.3.00.0040.03711.68
5.2.170.0040.0309.18
5.2.160.0050.0289.18
5.2.150.0040.0309.18
5.2.140.0070.0279.18
5.2.130.0060.0269.14
5.2.120.0060.0269.15
5.2.110.0040.0309.15
5.2.100.0040.0419.14
5.2.90.0110.0349.14
5.2.80.0060.0289.14
5.2.70.0060.0299.14
5.2.60.0070.0289.09
5.2.50.0050.0299.06
5.2.40.0050.0279.03
5.2.30.0040.0299.01
5.2.20.0020.0309.00
5.2.10.0050.0278.92
5.2.00.0050.0288.78
5.1.60.0070.0208.07
5.1.50.0090.0238.07
5.1.40.0010.0278.04
5.1.30.0040.0258.40
5.1.20.0040.0268.42
5.1.10.0070.0238.14
5.1.00.0040.0248.14
5.0.50.0030.0206.62
5.0.40.0050.0226.48
5.0.30.0020.0316.29
5.0.20.0050.0176.27
5.0.10.0040.0206.24
5.0.00.0030.0376.23
4.4.90.0010.0164.78
4.4.80.0020.0224.76
4.4.70.0020.0154.75
4.4.60.0020.0244.75
4.4.50.0020.0154.77
4.4.40.0030.0244.71
4.4.30.0020.0204.76
4.4.20.0030.0194.85
4.4.10.0030.0214.85
4.4.00.0000.0274.76
4.3.110.0060.0194.67
4.3.100.0040.0194.66
4.3.90.0020.0184.63
4.3.80.0010.0254.59
4.3.70.0030.0134.63
4.3.60.0040.0184.63
4.3.50.0030.0144.63
4.3.40.0030.0244.54
4.3.30.0010.0213.28
4.3.20.0020.0183.26
4.3.10.0020.0173.22
4.3.00.0170.0208.67

preferences:
141.42 ms | 1394 KiB | 7 Q