3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = '<h1>hello</h1>' echo serialize($a);

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)
5.4.320.0060.03612.50
5.4.310.0070.04512.49
5.4.300.0080.03412.50
5.4.290.0070.03712.49
5.4.280.0060.03612.39
5.4.270.0070.03512.39
5.4.260.0050.04112.39
5.4.250.0100.03612.39
5.4.240.0070.05012.39
5.4.230.0040.04012.38
5.4.220.0040.03812.38
5.4.210.0060.03512.38
5.4.200.0080.03512.38
5.4.190.0110.04012.38
5.4.180.0070.04212.38
5.4.170.0090.03412.39
5.4.160.0060.03712.38
5.4.150.0090.03412.38
5.4.140.0100.03312.07
5.4.130.0050.03612.05
5.4.120.0060.03612.02
5.4.110.0060.03712.02
5.4.100.0060.03512.02
5.4.90.0060.03612.01
5.4.80.0060.03712.01
5.4.70.0060.03412.01
5.4.60.0050.03512.01
5.4.50.0050.03612.01
5.4.40.0070.03312.00
5.4.30.0060.03711.99
5.4.20.0060.03511.99
5.4.10.0090.03111.99
5.4.00.0020.03811.48
5.3.290.0060.04412.80
5.3.280.0080.03512.71
5.3.270.0120.03312.73
5.3.260.0080.03712.72
5.3.250.0110.03112.72
5.3.240.0050.03712.72
5.3.230.0040.04012.71
5.3.220.0100.03912.68
5.3.210.0090.03812.68
5.3.200.0090.03312.68
5.3.190.0100.04912.67
5.3.180.0030.04012.68
5.3.170.0060.03612.67
5.3.160.0060.03612.68
5.3.150.0100.03512.68
5.3.140.0100.04512.66
5.3.130.0070.03712.65
5.3.120.0070.03812.66
5.3.110.0070.05312.66
5.3.100.0100.03912.12
5.3.90.0080.03612.08
5.3.80.0080.03412.07
5.3.70.0080.03412.07
5.3.60.0040.03712.06
5.3.50.0060.03512.00
5.3.40.0030.03912.00
5.3.30.0060.03411.95
5.3.20.0080.03311.73
5.3.10.0060.03711.70
5.3.00.0110.03511.68
5.2.170.0040.0369.18
5.2.160.0070.0359.18
5.2.150.0040.0409.18
5.2.140.0090.0309.18
5.2.130.0090.0329.14
5.2.120.0060.0309.13
5.2.110.0080.0329.15
5.2.100.0060.0369.14
5.2.90.0070.0269.14
5.2.80.0020.0329.14
5.2.70.0030.0369.14
5.2.60.0040.0309.09
5.2.50.0040.0329.06
5.2.40.0050.0309.04
5.2.30.0050.0399.01
5.2.20.0080.0329.01
5.2.10.0050.0288.92
5.2.00.0050.0298.78
5.1.60.0030.0308.07
5.1.50.0040.0248.06
5.1.40.0030.0258.05
5.1.30.0040.0268.40
5.1.20.0060.0258.42
5.1.10.0060.0238.14
5.1.00.0040.0258.14
5.0.50.0040.0206.62
5.0.40.0020.0216.48
5.0.30.0020.0316.29
5.0.20.0020.0206.27
5.0.10.0010.0226.24
5.0.00.0030.0306.23
4.4.90.0030.0144.78
4.4.80.0020.0164.76
4.4.70.0020.0164.75
4.4.60.0020.0184.76
4.4.50.0020.0164.77
4.4.40.0010.0294.71
4.4.30.0040.0144.76
4.4.20.0030.0164.85
4.4.10.0030.0224.85
4.4.00.0020.0264.76
4.3.110.0030.0164.67
4.3.100.0020.0174.67
4.3.90.0020.0174.63
4.3.80.0040.0244.58
4.3.70.0030.0154.63
4.3.60.0040.0214.63
4.3.50.0040.0174.63
4.3.40.0050.0264.54
4.3.30.0020.0153.28
4.3.20.0020.0223.26
4.3.10.0020.0203.21
4.3.00.0000.01314.87

preferences:
139.44 ms | 1394 KiB | 7 Q