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)
5.4.340.0080.03611.98
5.4.320.0090.03412.46
5.4.310.0080.04212.46
5.4.300.0070.03412.47
5.4.290.0060.03712.46
5.4.280.0100.03312.36
5.4.270.0040.03712.36
5.4.260.0060.03712.36
5.4.250.0050.03812.36
5.4.240.0060.03612.36
5.4.230.0050.03912.35
5.4.220.0060.03412.35
5.4.210.0080.03312.35
5.4.200.0070.03612.35
5.4.190.0120.02912.34
5.4.180.0080.03412.34
5.4.170.0090.03712.36
5.4.160.0040.03612.36
5.4.150.0100.03012.35
5.4.140.0070.04712.03
5.4.130.0040.03612.02
5.4.120.0090.03711.98
5.4.110.0070.03611.97
5.4.100.0060.03511.97
5.4.90.0020.04111.98
5.4.80.0050.03711.97
5.4.70.0040.03611.97
5.4.60.0050.04011.97
5.4.50.0070.03311.97
5.4.40.0040.03611.96
5.4.30.0050.03611.96
5.4.20.0050.04011.96
5.4.10.0060.03411.96
5.4.00.0120.03311.45
5.3.290.0130.04612.80
5.3.280.0060.04312.71
5.3.270.0040.04812.73
5.3.260.0060.03912.72
5.3.250.0070.03812.72
5.3.240.0060.03512.72
5.3.230.0070.04012.71
5.3.220.0050.04012.68
5.3.210.0070.03712.68
5.3.200.0060.03912.68
5.3.190.0060.03912.68
5.3.180.0080.03912.67
5.3.170.0050.03912.67
5.3.160.0060.04012.68
5.3.150.0070.03512.67
5.3.140.0080.04112.66
5.3.130.0060.03812.66
5.3.120.0040.04112.66
5.3.110.0060.03812.66
5.3.100.0040.03812.12
5.3.90.0020.03912.09
5.3.80.0080.03412.08
5.3.70.0070.03512.08
5.3.60.0100.03312.06
5.3.50.0060.03612.00
5.3.40.0060.03712.00
5.3.30.0070.03411.95
5.3.20.0050.03511.72
5.3.10.0070.03511.70
5.3.00.0110.03611.68
5.2.170.0050.0299.18
5.2.160.0050.0289.18
5.2.150.0060.0339.18
5.2.140.0060.0379.18
5.2.130.0030.0319.14
5.2.120.0070.0309.14
5.2.110.0060.0459.14
5.2.100.0090.0259.14
5.2.90.0030.0309.14
5.2.80.0040.0329.14
5.2.70.0050.0359.14
5.2.60.0040.0339.09
5.2.50.0040.0309.05
5.2.40.0040.0369.04
5.2.30.0040.0319.01
5.2.20.0050.0279.00
5.2.10.0090.0338.93
5.2.00.0060.0278.78
5.1.60.0030.0268.07
5.1.50.0040.0258.06
5.1.40.0070.0248.04
5.1.30.0090.0238.40
5.1.20.0050.0258.42
5.1.10.0030.0268.14
5.1.00.0090.0238.14
5.0.50.0080.0166.63
5.0.40.0050.0276.48
5.0.30.0030.0316.29
5.0.20.0030.0206.27
5.0.10.0030.0216.24
5.0.00.0030.0316.23
4.4.90.0020.0164.78
4.4.80.0040.0194.76
4.4.70.0010.0174.75
4.4.60.0040.0144.75
4.4.50.0020.0164.77
4.4.40.0030.0244.71
4.4.30.0040.0154.76
4.4.20.0050.0174.85
4.4.10.0050.0144.85
4.4.00.0040.0284.75
4.3.110.0050.0134.67
4.3.100.0010.0164.66
4.3.90.0030.0144.63
4.3.80.0020.0264.59
4.3.70.0030.0144.63
4.3.60.0020.0164.63
4.3.50.0030.0154.63
4.3.40.0020.0244.54
4.3.30.0050.0183.28
4.3.20.0040.0183.26
4.3.10.0040.0133.22
4.3.00.0070.0208.67

preferences:
216.84 ms | 1394 KiB | 7 Q