3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test() { $1 = 2; return null; } var_dump(empty(test()));

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)
5.4.310.0090.04012.51
5.4.300.0060.03912.52
5.4.290.0080.04012.51
5.4.280.0050.04212.40
5.4.270.0040.04212.40
5.4.260.0060.04212.41
5.4.250.0100.03912.41
5.4.240.0130.03512.40
5.4.230.0060.04012.40
5.4.220.0040.04212.39
5.4.210.0050.04312.39
5.4.200.0080.04612.39
5.4.190.0090.04612.39
5.4.180.0080.05312.39
5.4.170.0100.04812.40
5.4.160.0070.03512.40
5.4.150.0080.03912.39
5.4.140.0080.03912.08
5.4.130.0070.03612.06
5.4.120.0060.03412.04
5.4.110.0070.03412.03
5.4.100.0100.03712.03
5.4.90.0050.03812.02
5.4.80.0090.03412.03
5.4.70.0060.03512.02
5.4.60.0070.03912.02
5.4.50.0060.04712.03
5.4.40.0080.03612.01
5.4.30.0050.04012.01
5.4.20.0100.03512.00
5.4.10.0080.03312.01
5.4.00.0070.03411.50
5.3.280.0090.03512.71
5.3.270.0060.04612.73
5.3.260.0070.03812.71
5.3.250.0060.03812.72
5.3.240.0050.03812.72
5.3.230.0060.04212.71
5.3.220.0080.03812.68
5.3.210.0030.04212.68
5.3.200.0060.04612.68
5.3.190.0040.03912.68
5.3.180.0060.04112.68
5.3.170.0110.04212.66
5.3.160.0080.04912.67
5.3.150.0050.04012.68
5.3.140.0050.03612.66
5.3.130.0030.04112.66
5.3.120.0070.03812.66
5.3.110.0030.04212.66
5.3.100.0050.03812.13
5.3.90.0050.03712.11
5.3.80.0070.03612.09
5.3.70.0020.04012.09
5.3.60.0030.04512.08
5.3.50.0090.03212.02
5.3.40.0060.03712.02
5.3.30.0030.04111.98
5.3.20.0040.04011.76
5.3.10.0060.04311.73
5.3.00.0080.03411.71
5.2.170.0080.0369.21
5.2.160.0050.0319.21
5.2.150.0040.0329.22
5.2.140.0030.0329.21
5.2.130.0050.0339.18
5.2.120.0040.0289.17
5.2.110.0010.0329.18
5.2.100.0040.0319.18
5.2.90.0080.0299.18
5.2.80.0080.0339.17
5.2.70.0040.0329.17
5.2.60.0040.0359.13
5.2.50.0040.0319.09
5.2.40.0050.0289.07
5.2.30.0040.0309.05
5.2.20.0040.0289.04
5.2.10.0040.0328.95
5.2.00.0050.0298.80
5.1.60.0040.0288.09
5.1.50.0050.0248.08
5.1.40.0050.0268.07
5.1.30.0040.0308.42
5.1.20.0080.0268.44
5.1.10.0050.0358.16
5.1.00.0040.0258.16
5.0.50.0040.0216.64
5.0.40.0070.0156.50
5.0.30.0050.0336.31
5.0.20.0050.0276.29
5.0.10.0040.0196.25
5.0.00.0070.0386.25
4.4.90.0030.0254.78
4.4.80.0020.0154.75
4.4.70.0030.0154.76
4.4.60.0050.0154.75
4.4.50.0040.0174.77
4.4.40.0040.0274.71
4.4.30.0030.0204.76
4.4.20.0030.0204.84
4.4.10.0030.0204.85
4.4.00.0050.0274.76
4.3.110.0050.0134.67
4.3.100.0040.0134.66
4.3.90.0020.0174.63
4.3.80.0020.0324.58
4.3.70.0010.0164.63
4.3.60.0030.0144.63
4.3.50.0010.0194.63
4.3.40.0030.0264.54
4.3.30.0040.0173.30
4.3.20.0010.0183.28
4.3.10.0040.0143.23
4.3.00.0170.0177.06

preferences:
138.7 ms | 1394 KiB | 7 Q