3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 'string'; $x =. 'BLOCK'; 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)
5.4.320.0070.05312.50
5.4.310.0060.05512.49
5.4.300.0080.03612.50
5.4.290.0080.03812.49
5.4.280.0050.03912.39
5.4.270.0050.03812.39
5.4.260.0050.03912.39
5.4.250.0070.03512.39
5.4.240.0060.03512.39
5.4.230.0050.03912.38
5.4.220.0070.03512.38
5.4.210.0060.03512.38
5.4.200.0060.04012.38
5.4.190.0090.03212.38
5.4.180.0030.04012.38
5.4.170.0080.04412.38
5.4.160.0080.04212.38
5.4.150.0050.03912.38
5.4.140.0050.04112.07
5.4.130.0060.03612.05
5.4.120.0070.03812.02
5.4.110.0040.03712.01
5.4.100.0080.03212.01
5.4.90.0090.03412.01
5.4.80.0080.03412.01
5.4.70.0100.03812.00
5.4.60.0070.03612.00
5.4.50.0090.03812.00
5.4.40.0080.04712.00
5.4.30.0070.03611.99
5.4.20.0080.05011.99
5.4.10.0090.03211.99
5.4.00.0030.03711.49
5.3.290.0040.04012.80
5.3.280.0060.03912.71
5.3.270.0060.03912.72
5.3.260.0040.04012.72
5.3.250.0140.03912.72
5.3.240.0090.03612.72
5.3.230.0070.03612.71
5.3.220.0040.04512.68
5.3.210.0070.04112.68
5.3.200.0100.04112.68
5.3.190.0090.04112.68
5.3.180.0080.04312.67
5.3.170.0120.03512.67
5.3.160.0060.04212.67
5.3.150.0070.04012.67
5.3.140.0050.03712.66
5.3.130.0070.05412.66
5.3.120.0070.03812.66
5.3.110.0050.03912.66
5.3.100.0060.03612.11
5.3.90.0070.03712.09
5.3.80.0060.03712.07
5.3.70.0040.03812.07
5.3.60.0060.03612.07
5.3.50.0090.03312.00
5.3.40.0040.03912.00
5.3.30.0100.03411.95
5.3.20.0080.04111.73
5.3.10.0080.04511.70
5.3.00.0090.04811.68
5.2.170.0050.0339.18
5.2.160.0060.0289.18
5.2.150.0040.0329.19
5.2.140.0040.0319.18
5.2.130.0080.0289.14
5.2.120.0060.0279.14
5.2.110.0100.0289.15
5.2.100.0080.0359.14
5.2.90.0080.0259.14
5.2.80.0050.0349.14
5.2.70.0100.0279.14
5.2.60.0040.0329.09
5.2.50.0080.0409.06
5.2.40.0070.0379.04
5.2.30.0070.0419.02
5.2.20.0060.0379.00
5.2.10.0040.0298.92
5.2.00.0070.0268.78
5.1.60.0040.0238.07
5.1.50.0050.0248.06
5.1.40.0040.0248.05
5.1.30.0050.0258.40
5.1.20.0050.0258.42
5.1.10.0090.0318.14
5.1.00.0060.0308.14
5.0.50.0040.0196.62
5.0.40.0060.0166.48
5.0.30.0060.0366.29
5.0.20.0060.0176.26
5.0.10.0040.0206.24
5.0.00.0060.0296.23
4.4.90.0020.0174.78
4.4.80.0020.0184.75
4.4.70.0030.0154.75
4.4.60.0040.0144.76
4.4.50.0030.0154.77
4.4.40.0030.0254.71
4.4.30.0050.0134.76
4.4.20.0030.0154.85
4.4.10.0040.0184.85
4.4.00.0040.0314.75
4.3.110.0040.0164.67
4.3.100.0000.0174.67
4.3.90.0040.0124.64
4.3.80.0030.0254.58
4.3.70.0010.0164.63
4.3.60.0050.0134.63
4.3.50.0020.0164.63
4.3.40.0020.0244.53
4.3.30.0020.0163.28
4.3.20.0020.0153.26
4.3.10.0010.0163.21
4.3.00.0000.0237.15

preferences:
144.39 ms | 1394 KiB | 7 Q