3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(isset(0)); var_dump(empty(0)); var_dump(is_null(0));

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)
5.4.320.0050.03912.50
5.4.310.0090.04212.49
5.4.300.0090.04012.49
5.4.290.0120.04712.49
5.4.280.0130.04612.39
5.4.270.0070.04112.39
5.4.260.0090.04912.39
5.4.250.0080.04112.39
5.4.240.0070.04212.39
5.4.230.0020.04512.38
5.4.220.0050.03612.38
5.4.210.0040.03912.38
5.4.200.0020.04312.38
5.4.190.0070.03512.38
5.4.180.0120.04112.38
5.4.170.0100.04712.38
5.4.160.0080.03912.38
5.4.150.0100.04112.38
5.4.140.0100.04812.07
5.4.130.0060.04112.05
5.4.120.0070.04012.01
5.4.110.0080.03612.01
5.4.100.0090.04112.01
5.4.90.0090.04212.01
5.4.80.0050.04112.01
5.4.70.0090.03912.01
5.4.60.0080.03812.00
5.4.50.0070.03612.01
5.4.40.0080.03511.99
5.4.30.0050.03911.99
5.4.20.0120.03811.98
5.4.10.0110.03211.99
5.4.00.0070.04211.48
5.3.290.0060.04112.80
5.3.280.0070.04512.71
5.3.270.0060.05012.72
5.3.260.0070.04712.72
5.3.250.0100.03812.71
5.3.240.0090.04112.72
5.3.230.0090.03812.71
5.3.220.0050.04912.68
5.3.210.0130.04312.68
5.3.200.0080.04312.68
5.3.190.0100.04812.68
5.3.180.0100.03812.67
5.3.170.0090.04512.67
5.3.160.0080.04112.67
5.3.150.0060.05112.67
5.3.140.0050.04112.66
5.3.130.0070.04712.66
5.3.120.0110.04012.66
5.3.110.0110.04512.66
5.3.100.0060.03912.12
5.3.90.0050.03912.08
5.3.80.0090.03812.08
5.3.70.0070.03812.08
5.3.60.0080.04112.06
5.3.50.0100.03412.00
5.3.40.0100.03512.00
5.3.30.0060.03611.95
5.3.20.0080.03711.73
5.3.10.0080.03511.70
5.3.00.0070.03611.68
5.2.170.0080.0289.18
5.2.160.0040.0309.18
5.2.150.0050.0329.18
5.2.140.0060.0349.18
5.2.130.0050.0319.14
5.2.120.0070.0289.14
5.2.110.0040.0309.14
5.2.100.0060.0289.14
5.2.90.0040.0319.14
5.2.80.0050.0329.13
5.2.70.0110.0369.13
5.2.60.0040.0369.09
5.2.50.0060.0319.06
5.2.40.0030.0309.03
5.2.30.0040.0319.02
5.2.20.0100.0309.01
5.2.10.0040.0308.93
5.2.00.0060.0298.78
5.1.60.0080.0238.07
5.1.50.0060.0258.06
5.1.40.0060.0238.05
5.1.30.0060.0268.40
5.1.20.0060.0298.42
5.1.10.0090.0248.14
5.1.00.0100.0278.14
5.0.50.0070.0216.62
5.0.40.0050.0256.48
5.0.30.0070.0356.29
5.0.20.0030.0296.27
5.0.10.0020.0236.23
5.0.00.0040.0376.23
4.4.90.0070.0144.78
4.4.80.0040.0154.75
4.4.70.0040.0184.75
4.4.60.0040.0164.75
4.4.50.0030.0154.77
4.4.40.0030.0294.71
4.4.30.0030.0174.76
4.4.20.0030.0154.84
4.4.10.0010.0174.84
4.4.00.0040.0244.76
4.3.110.0020.0164.67
4.3.100.0040.0174.66
4.3.90.0040.0144.63
4.3.80.0030.0254.58
4.3.70.0030.0154.63
4.3.60.0010.0164.63
4.3.50.0050.0144.63
4.3.40.0000.0284.54
4.3.30.0030.0163.29
4.3.20.0020.0173.27
4.3.10.0030.0153.22
4.3.00.0000.0237.13

preferences:
141.48 ms | 1394 KiB | 7 Q