3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r(var_dump(isset(false), true));

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)
5.4.320.0040.03712.50
5.4.310.0030.04112.49
5.4.300.0070.04512.49
5.4.290.0050.04412.50
5.4.280.0090.03112.39
5.4.270.0060.04112.39
5.4.260.0090.03812.39
5.4.250.0060.04512.39
5.4.240.0070.03412.39
5.4.230.0080.04012.38
5.4.220.0050.04012.38
5.4.210.0080.03312.38
5.4.200.0030.04012.38
5.4.190.0070.03412.38
5.4.180.0050.03612.38
5.4.170.0050.04112.39
5.4.160.0040.03712.38
5.4.150.0070.03812.38
5.4.140.0070.04712.07
5.4.130.0050.03512.05
5.4.120.0070.03312.01
5.4.110.0090.03112.01
5.4.100.0050.03512.01
5.4.90.0070.03512.01
5.4.80.0040.04212.01
5.4.70.0080.03712.01
5.4.60.0080.03712.01
5.4.50.0090.03712.00
5.4.40.0030.04012.00
5.4.30.0070.03611.99
5.4.20.0060.04211.98
5.4.10.0050.03411.99
5.4.00.0020.03811.48
5.3.290.0050.04312.80
5.3.280.0070.03712.71
5.3.270.0050.04712.72
5.3.260.0050.04012.72
5.3.250.0070.03512.72
5.3.240.0080.03412.71
5.3.230.0070.03512.71
5.3.220.0060.04012.68
5.3.210.0050.03812.68
5.3.200.0120.04112.68
5.3.190.0060.03712.68
5.3.180.0070.03412.68
5.3.170.0040.03712.67
5.3.160.0080.03912.68
5.3.150.0060.03612.67
5.3.140.0110.04412.66
5.3.130.0090.03612.66
5.3.120.0070.03812.66
5.3.110.0050.04412.66
5.3.100.0050.04812.12
5.3.90.0080.04012.08
5.3.80.0050.03712.07
5.3.70.0080.03512.07
5.3.60.0040.03712.07
5.3.50.0050.03612.00
5.3.40.0050.03612.00
5.3.30.0040.03611.95
5.3.20.0060.04111.73
5.3.10.0090.03011.70
5.3.00.0060.03811.68
5.2.170.0060.0309.18
5.2.160.0050.0279.18
5.2.150.0060.0289.18
5.2.140.0070.0269.18
5.2.130.0040.0289.14
5.2.120.0040.0279.14
5.2.110.0060.0269.15
5.2.100.0080.0239.14
5.2.90.0050.0279.14
5.2.80.0030.0309.14
5.2.70.0020.0319.14
5.2.60.0080.0319.09
5.2.50.0060.0289.06
5.2.40.0060.0289.03
5.2.30.0070.0339.02
5.2.20.0050.0279.01
5.2.10.0030.0328.92
5.2.00.0040.0308.78
5.1.60.0050.0308.07
5.1.50.0050.0308.06
5.1.40.0050.0228.05
5.1.30.0080.0308.39
5.1.20.0040.0278.41
5.1.10.0040.0258.14
5.1.00.0050.0248.14
5.0.50.0020.0216.63
5.0.40.0030.0196.48
5.0.30.0020.0356.29
5.0.20.0030.0216.27
5.0.10.0060.0176.24
5.0.00.0030.0306.23
4.4.90.0050.0194.78
4.4.80.0000.0174.75
4.4.70.0020.0154.76
4.4.60.0060.0154.76
4.4.50.0040.0174.77
4.4.40.0040.0264.71
4.4.30.0020.0164.76
4.4.20.0060.0164.84
4.4.10.0020.0174.85
4.4.00.0010.0314.76
4.3.110.0050.0154.67
4.3.100.0020.0154.67
4.3.90.0000.0194.64
4.3.80.0040.0294.59
4.3.70.0010.0164.63
4.3.60.0040.0134.63
4.3.50.0020.0174.63
4.3.40.0020.0244.54
4.3.30.0040.0133.29
4.3.20.0010.0173.26
4.3.10.0010.0173.22
4.3.00.0000.02015.97

preferences:
144.09 ms | 1394 KiB | 7 Q