3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "is_null ( ", var_export("", true), " ) = ", var_export(is_null(null), true), " \n";}

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
5.4.300.0030.03912.50
5.4.290.0060.03912.50
5.4.280.0040.04012.39
5.4.270.0070.04612.39
5.4.260.0090.04012.39
5.4.250.0080.03612.39
5.4.240.0060.03612.39
5.4.230.0060.03912.38
5.4.220.0040.03712.38
5.4.210.0030.03912.38
5.4.200.0080.03612.38
5.4.190.0030.03812.38
5.4.180.0070.03412.38
5.4.170.0070.03612.39
5.4.160.0070.03512.38
5.4.150.0060.04212.38
5.4.140.0040.03812.07
5.4.130.0080.03912.05
5.4.120.0070.04112.02
5.4.110.0050.03512.01
5.4.100.0050.03512.01
5.4.90.0040.03912.02
5.4.80.0040.03812.02
5.4.70.0060.03512.01
5.4.60.0060.03512.01
5.4.50.0070.03512.00
5.4.40.0070.03211.99
5.4.30.0030.03912.00
5.4.20.0050.03611.98
5.4.10.0040.03511.99
5.4.00.0010.03911.48
5.3.280.0060.03712.71
5.3.270.0060.04012.72
5.3.260.0070.03712.72
5.3.250.0040.03912.72
5.3.240.0090.03412.72
5.3.230.0060.04212.71
5.3.220.0020.04612.68
5.3.210.0050.04512.68
5.3.200.0080.04312.68
5.3.190.0090.03512.68
5.3.180.0030.04212.67
5.3.170.0050.03612.67
5.3.160.0040.04312.67
5.3.150.0080.03912.67
5.3.140.0060.03612.66
5.3.130.0090.03512.66
5.3.120.0040.04112.66
5.3.110.0060.03912.66
5.3.100.0050.03812.12
5.3.90.0040.03812.09
5.3.80.0060.03612.07
5.3.70.0040.04512.07
5.3.60.0080.03412.07
5.3.50.0050.04512.00
5.3.40.0050.03912.00
5.3.30.0050.03611.95
5.3.20.0060.03511.73
5.3.10.0010.04011.70
5.3.00.0030.03811.70
5.2.170.0040.0319.18
5.2.160.0070.0409.19
5.2.150.0050.0309.19
5.2.140.0030.0389.18
5.2.130.0060.0309.14
5.2.120.0050.0339.14
5.2.110.0040.0329.15
5.2.100.0090.0269.14
5.2.90.0060.0289.14
5.2.80.0080.0339.14
5.2.70.0040.0329.14
5.2.60.0070.0339.09
5.2.50.0040.0319.06
5.2.40.0020.0349.04
5.2.30.0080.0289.01
5.2.20.0030.0309.00
5.2.10.0050.0288.92
5.2.00.0050.0288.78
5.1.60.0060.0328.07
5.1.50.0050.0238.07
5.1.40.0060.0258.04
5.1.30.0030.0288.40
5.1.20.0070.0318.42
5.1.10.0060.0288.14
5.1.00.0080.0218.14
5.0.50.0070.0176.62
5.0.40.0040.0226.48
5.0.30.0060.0296.29
5.0.20.0050.0186.27
5.0.10.0050.0206.24
5.0.00.0040.0316.23
4.4.90.0020.0204.78
4.4.80.0050.0174.75
4.4.70.0040.0144.75
4.4.60.0020.0164.76
4.4.50.0020.0164.77
4.4.40.0020.0264.70
4.4.30.0070.0184.76
4.4.20.0040.0184.85
4.4.10.0040.0134.85
4.4.00.0050.0294.76
4.3.110.0010.0234.67
4.3.100.0010.0164.66
4.3.90.0020.0164.63
4.3.80.0030.0244.58
4.3.70.0030.0184.63
4.3.60.0040.0184.63
4.3.50.0050.0134.63
4.3.40.0030.0264.53
4.3.30.0030.0153.28
4.3.20.0040.0143.26
4.3.10.0020.0153.22
4.3.00.0100.01315.29

preferences:
141.36 ms | 1394 KiB | 7 Q