3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'str1nk'; $size = strlen($str); for($i = 0; $i < $size; $i++) echo $str{$size - $i}

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)
5.4.320.0060.03712.47
5.4.310.0080.03712.47
5.4.300.0050.03812.47
5.4.290.0080.03712.46
5.4.280.0090.03212.37
5.4.270.0060.03612.36
5.4.260.0080.03512.36
5.4.250.0040.03912.37
5.4.240.0060.03612.36
5.4.230.0080.03512.36
5.4.220.0030.03812.36
5.4.210.0090.03412.36
5.4.200.0040.03912.36
5.4.190.0040.04012.36
5.4.180.0060.03812.35
5.4.170.0090.03812.36
5.4.160.0110.04512.36
5.4.150.0070.03612.35
5.4.140.0080.03712.04
5.4.130.0090.03412.03
5.4.120.0040.03811.99
5.4.110.0030.03811.98
5.4.100.0030.03911.99
5.4.90.0070.03611.98
5.4.80.0040.03811.98
5.4.70.0050.03811.98
5.4.60.0060.04011.98
5.4.50.0130.04111.98
5.4.40.0050.04711.97
5.4.30.0030.03911.96
5.4.20.0040.03711.96
5.4.10.0090.03211.96
5.4.00.0050.03711.46
5.3.290.0080.04212.80
5.3.280.0060.04112.71
5.3.270.0030.04212.72
5.3.260.0090.03612.71
5.3.250.0020.04112.72
5.3.240.0070.03712.72
5.3.230.0070.04412.70
5.3.220.0040.04712.68
5.3.210.0040.04412.68
5.3.200.0050.04012.68
5.3.190.0100.03312.68
5.3.180.0040.03812.68
5.3.170.0050.03812.67
5.3.160.0050.03712.67
5.3.150.0060.04212.67
5.3.140.0050.03712.66
5.3.130.0070.03712.66
5.3.120.0060.03912.65
5.3.110.0070.03812.66
5.3.100.0050.04212.12
5.3.90.0050.03712.08
5.3.80.0010.04112.07
5.3.70.0010.04212.08
5.3.60.0090.04012.07
5.3.50.0070.03912.00
5.3.40.0090.04612.00
5.3.30.0080.03611.95
5.3.20.0080.03411.74
5.3.10.0070.03511.70
5.3.00.0060.03611.68
5.2.170.0040.0319.18
5.2.160.0080.0259.19
5.2.150.0060.0299.18
5.2.140.0070.0299.18
5.2.130.0030.0339.14
5.2.120.0070.0309.14
5.2.110.0060.0309.15
5.2.100.0060.0299.14
5.2.90.0060.0309.14
5.2.80.0070.0469.14
5.2.70.0070.0429.13
5.2.60.0100.0379.09
5.2.50.0080.0409.06
5.2.40.0060.0389.04
5.2.30.0090.0389.01
5.2.20.0040.0329.00
5.2.10.0050.0298.92
5.2.00.0050.0298.79
5.1.60.0030.0258.07
5.1.50.0030.0278.07
5.1.40.0070.0238.05
5.1.30.0060.0248.40
5.1.20.0080.0408.41
5.1.10.0110.0308.15
5.1.00.0080.0348.15
5.0.50.0060.0196.63
5.0.40.0030.0236.48
5.0.30.0070.0286.29
5.0.20.0020.0216.26
5.0.10.0030.0226.24
5.0.00.0040.0316.23
4.4.90.0030.0174.78
4.4.80.0040.0154.76
4.4.70.0040.0144.75
4.4.60.0030.0234.75
4.4.50.0040.0224.77
4.4.40.0030.0264.71
4.4.30.0050.0134.76
4.4.20.0020.0164.84
4.4.10.0030.0154.85
4.4.00.0040.0284.76
4.3.110.0050.0134.67
4.3.100.0020.0154.67
4.3.90.0030.0144.63
4.3.80.0020.0264.59
4.3.70.0030.0144.63
4.3.60.0030.0194.63
4.3.50.0000.0184.63
4.3.40.0030.0244.54
4.3.30.0040.0143.29
4.3.20.0050.0133.27
4.3.10.0030.0153.22
4.3.00.0000.01716.72

preferences:
142.54 ms | 1398 KiB | 7 Q