3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(isset(null));

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)
5.4.310.0070.03712.49
5.4.300.0100.03212.50
5.4.290.0080.03712.49
5.4.280.0060.03612.39
5.4.270.0030.03812.39
5.4.260.0070.04312.39
5.4.250.0100.03712.39
5.4.240.0070.04412.39
5.4.230.0060.03712.38
5.4.220.0080.03812.38
5.4.210.0050.04512.38
5.4.200.0070.03512.38
5.4.190.0040.03712.38
5.4.180.0040.03712.38
5.4.170.0070.04412.39
5.4.160.0030.03712.38
5.4.150.0060.03912.38
5.4.140.0060.03812.07
5.4.130.0100.03312.05
5.4.120.0060.03512.02
5.4.110.0060.03412.01
5.4.100.0080.03312.01
5.4.90.0060.04312.01
5.4.80.0080.04012.01
5.4.70.0090.04012.00
5.4.60.0040.03612.01
5.4.50.0070.04312.00
5.4.40.0060.03411.99
5.4.30.0040.03711.99
5.4.20.0050.03611.99
5.4.10.0060.03511.99
5.4.00.0090.03111.48
5.3.290.0050.04212.80
5.3.280.0060.03712.71
5.3.270.0040.04112.73
5.3.260.0060.04312.72
5.3.250.0070.05212.72
5.3.240.0050.04312.72
5.3.230.0060.03612.71
5.3.220.0100.03512.68
5.3.210.0060.03812.68
5.3.200.0060.04112.68
5.3.190.0060.03612.68
5.3.180.0080.03312.68
5.3.170.0060.03712.67
5.3.160.0080.03712.67
5.3.150.0090.03512.68
5.3.140.0070.04412.66
5.3.130.0080.04212.66
5.3.120.0090.03612.66
5.3.110.0050.03912.66
5.3.100.0060.03712.12
5.3.90.0090.04612.09
5.3.80.0070.05012.07
5.3.70.0090.03912.08
5.3.60.0060.04212.06
5.3.50.0100.04212.00
5.3.40.0070.04312.00
5.3.30.0060.03411.95
5.3.20.0070.03811.73
5.3.10.0090.03811.70
5.3.00.0060.03511.68
5.2.170.0040.0349.18
5.2.160.0050.0299.18
5.2.150.0040.0319.18
5.2.140.0050.0329.18
5.2.130.0030.0319.14
5.2.120.0030.0309.14
5.2.110.0070.0269.15
5.2.100.0060.0269.14
5.2.90.0080.0319.14
5.2.80.0070.0359.14
5.2.70.0070.0389.14
5.2.60.0070.0379.09
5.2.50.0070.0389.06
5.2.40.0040.0319.04
5.2.30.0030.0319.01
5.2.20.0050.0289.01
5.2.10.0030.0318.92
5.2.00.0020.0338.78
5.1.60.0020.0258.06
5.1.50.0020.0268.06
5.1.40.0030.0258.05
5.1.30.0060.0248.40
5.1.20.0030.0288.42
5.1.10.0080.0228.14
5.1.00.0020.0278.14
5.0.50.0040.0206.62
5.0.40.0020.0206.48
5.0.30.0060.0286.29
5.0.20.0030.0216.26
5.0.10.0040.0206.24
5.0.00.0050.0296.23
4.4.90.0050.0134.78
4.4.80.0030.0154.76
4.4.70.0030.0144.75
4.4.60.0020.0164.75
4.4.50.0010.0174.77
4.4.40.0030.0244.71
4.4.30.0050.0134.76
4.4.20.0020.0154.85
4.4.10.0020.0154.85
4.4.00.0040.0234.76
4.3.110.0030.0154.67
4.3.100.0030.0144.66
4.3.90.0030.0144.64
4.3.80.0050.0224.59
4.3.70.0030.0144.63
4.3.60.0010.0164.63
4.3.50.0040.0144.62
4.3.40.0020.0244.54
4.3.30.0010.0173.29
4.3.20.0020.0153.27
4.3.10.0020.0153.22
4.3.00.0070.01315.91

preferences:
143.97 ms | 1394 KiB | 7 Q