3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 'string'; //$x =. 'BLOCK'; 'BLOCK' .= $x echo $x;

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)
5.4.320.0040.04412.49
5.4.310.0030.04012.50
5.4.300.0050.03712.50
5.4.290.0040.04112.50
5.4.280.0060.05012.39
5.4.270.0060.03912.39
5.4.260.0060.03712.39
5.4.250.0070.03612.39
5.4.240.0090.03412.39
5.4.230.0080.03612.38
5.4.220.0050.03712.38
5.4.210.0040.03712.38
5.4.200.0070.03612.38
5.4.190.0040.03812.38
5.4.180.0060.03712.38
5.4.170.0040.03812.39
5.4.160.0090.03512.38
5.4.150.0100.04112.38
5.4.140.0060.05312.07
5.4.130.0090.04712.05
5.4.120.0080.05012.02
5.4.110.0130.04412.01
5.4.100.0070.04012.01
5.4.90.0080.03912.01
5.4.80.0050.03812.01
5.4.70.0050.03512.00
5.4.60.0020.03812.01
5.4.50.0080.03312.00
5.4.40.0130.03112.00
5.4.30.0060.03712.00
5.4.20.0090.03711.98
5.4.10.0080.03411.99
5.4.00.0070.04311.48
5.3.290.0040.04512.80
5.3.280.0110.03312.70
5.3.270.0060.03912.72
5.3.260.0040.04112.72
5.3.250.0040.03912.72
5.3.240.0040.04012.72
5.3.230.0050.03812.71
5.3.220.0070.04312.68
5.3.210.0060.03812.68
5.3.200.0070.03512.68
5.3.190.0090.04112.68
5.3.180.0080.03712.68
5.3.170.0100.03212.67
5.3.160.0050.03712.68
5.3.150.0070.03512.68
5.3.140.0050.03712.66
5.3.130.0090.04212.66
5.3.120.0080.04612.66
5.3.110.0030.04912.66
5.3.100.0070.04112.12
5.3.90.0080.04812.08
5.3.80.0090.04512.08
5.3.70.0110.04612.07
5.3.60.0090.04012.06
5.3.50.0120.04312.00
5.3.40.0060.04812.00
5.3.30.0100.03411.95
5.3.20.0070.04811.73
5.3.10.0060.04311.70
5.3.00.0090.04811.68
5.2.170.0050.0429.18
5.2.160.0070.0409.18
5.2.150.0080.0299.18
5.2.140.0020.0399.18
5.2.130.0090.0279.14
5.2.120.0060.0289.14
5.2.110.0060.0299.14
5.2.100.0060.0289.14
5.2.90.0040.0309.14
5.2.80.0060.0299.14
5.2.70.0020.0339.14
5.2.60.0100.0379.09
5.2.50.0070.0409.06
5.2.40.0030.0329.03
5.2.30.0050.0289.01
5.2.20.0070.0339.00
5.2.10.0050.0288.92
5.2.00.0100.0348.78
5.1.60.0080.0208.06
5.1.50.0060.0248.06
5.1.40.0090.0208.04
5.1.30.0060.0238.40
5.1.20.0050.0258.41
5.1.10.0050.0258.14
5.1.00.0060.0258.14
5.0.50.0030.0206.62
5.0.40.0020.0206.48
5.0.30.0030.0316.29
5.0.20.0040.0266.27
5.0.10.0030.0206.24
5.0.00.0040.0296.23
4.4.90.0020.0164.78
4.4.80.0010.0164.76
4.4.70.0020.0164.75
4.4.60.0030.0154.75
4.4.50.0030.0174.77
4.4.40.0050.0244.71
4.4.30.0030.0154.76
4.4.20.0020.0164.84
4.4.10.0040.0144.85
4.4.00.0040.0244.76
4.3.110.0040.0174.67
4.3.100.0020.0164.67
4.3.90.0040.0134.63
4.3.80.0030.0244.58
4.3.70.0000.0174.63
4.3.60.0040.0134.63
4.3.50.0020.0164.62
4.3.40.0020.0254.54
4.3.30.0010.0173.28
4.3.20.0020.0163.26
4.3.10.0030.0143.21
4.3.00.0100.0206.89

preferences:
139.46 ms | 1394 KiB | 7 Q