3v4l.org

run code in 300+ PHP versions simultaneously
<?php const A = [1, 2, 3]; const B = A; var_dump(B); unset A; const 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)
5.4.340.0040.03811.98
5.4.320.0090.03612.46
5.4.310.0120.04512.46
5.4.300.0080.05012.46
5.4.290.0090.04612.46
5.4.280.0100.03112.36
5.4.270.0120.03912.36
5.4.260.0070.03812.36
5.4.250.0030.04112.36
5.4.240.0080.03412.36
5.4.230.0060.03912.35
5.4.220.0030.04112.35
5.4.210.0080.03912.35
5.4.200.0020.04912.36
5.4.190.0060.03712.34
5.4.180.0100.03612.35
5.4.170.0070.03612.36
5.4.160.0070.04212.35
5.4.150.0080.04112.35
5.4.140.0100.04312.04
5.4.130.0080.03712.02
5.4.120.0080.04211.98
5.4.110.0080.04211.97
5.4.100.0070.04011.97
5.4.90.0100.05111.97
5.4.80.0080.05211.98
5.4.70.0100.06111.97
5.4.60.0080.05911.97
5.4.50.0130.05911.97
5.4.40.0080.05011.96
5.4.30.0110.04011.96
5.4.20.0100.04211.95
5.4.10.0070.03411.96
5.4.00.0070.03511.45
5.3.290.0040.04112.80
5.3.280.0140.04412.71
5.3.270.0050.04012.73
5.3.260.0100.04212.72
5.3.250.0070.04512.71
5.3.240.0050.03712.72
5.3.230.0090.03312.71
5.3.220.0100.04212.68
5.3.210.0070.03812.68
5.3.200.0070.03612.68
5.3.190.0070.03712.68
5.3.180.0080.03412.68
5.3.170.0050.03612.67
5.3.160.0100.03612.68
5.3.150.0030.04012.67
5.3.140.0040.03912.66
5.3.130.0070.03612.66
5.3.120.0030.04112.66
5.3.110.0080.03712.65
5.3.100.0040.03812.12
5.3.90.0100.04512.08
5.3.80.0050.03712.07
5.3.70.0060.03812.07
5.3.60.0050.03612.07
5.3.50.0080.03312.00
5.3.40.0050.04112.00
5.3.30.0050.03511.95
5.3.20.0120.04511.72
5.3.10.0050.03511.70
5.3.00.0080.03511.68
5.2.170.0040.0319.18
5.2.160.0020.0329.18
5.2.150.0040.0349.18
5.2.140.0070.0299.18
5.2.130.0040.0309.14
5.2.120.0030.0359.14
5.2.110.0070.0299.14
5.2.100.0080.0399.14
5.2.90.0060.0419.14
5.2.80.0120.0379.14
5.2.70.0080.0409.14
5.2.60.0090.0289.09
5.2.50.0040.0299.05
5.2.40.0050.0299.03
5.2.30.0040.0309.02
5.2.20.0040.0299.00
5.2.10.0060.0268.92
5.2.00.0050.0288.78
5.1.60.0050.0238.06
5.1.50.0030.0268.06
5.1.40.0040.0248.05
5.1.30.0050.0248.40
5.1.20.0060.0248.42
5.1.10.0060.0268.14
5.1.00.0040.0258.14
5.0.50.0020.0226.63
5.0.40.0020.0216.47
5.0.30.0040.0316.29
5.0.20.0030.0196.27
5.0.10.0050.0186.23
5.0.00.0020.0316.23
4.4.90.0030.0154.78
4.4.80.0050.0124.76
4.4.70.0060.0124.76
4.4.60.0020.0164.75
4.4.50.0030.0164.77
4.4.40.0010.0274.71
4.4.30.0040.0154.76
4.4.20.0020.0174.84
4.4.10.0030.0164.85
4.4.00.0030.0274.76
4.3.110.0030.0154.67
4.3.100.0030.0154.66
4.3.90.0030.0144.63
4.3.80.0020.0244.59
4.3.70.0040.0134.63
4.3.60.0050.0174.63
4.3.50.0020.0174.63
4.3.40.0040.0254.54
4.3.30.0030.0203.28
4.3.20.0040.0313.26
4.3.10.0030.0253.22
4.3.00.0130.0208.67

preferences:
140.91 ms | 1394 KiB | 7 Q