3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** * Sum byte values from $start of $str **/ function sum($str, $start) { $sum = 0; $i = $start; for ( ,$max = strlen($str); $i < $max; ++$i) { $sum += ord($str[$i]); } return $sum; } $str = 'hello world'; echo sum($str, strpos($str, ' '));

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)
5.4.300.0030.03912.52
5.4.290.0070.03912.51
5.4.280.0090.03412.41
5.4.270.0060.03912.41
5.4.260.0050.03912.41
5.4.250.0050.03812.41
5.4.240.0070.03412.41
5.4.230.0060.03712.40
5.4.220.0060.03612.40
5.4.210.0030.03812.40
5.4.200.0050.03812.40
5.4.190.0080.03212.40
5.4.180.0060.03612.40
5.4.170.0050.03612.40
5.4.160.0050.04012.40
5.4.150.0070.03812.40
5.4.140.0050.03812.09
5.4.130.0070.03912.07
5.4.120.0060.03512.04
5.4.110.0040.03712.03
5.4.100.0060.03412.03
5.4.90.0070.04012.03
5.4.80.0070.04112.03
5.4.70.0070.03512.02
5.4.60.0090.03212.03
5.4.50.0040.03812.02
5.4.40.0050.03612.01
5.4.30.0070.03512.01
5.4.20.0040.03612.01
5.4.10.0060.03512.02
5.4.00.0060.03711.50
5.3.280.0080.03912.71
5.3.270.0060.04112.73
5.3.260.0050.04512.72
5.3.250.0050.03912.72
5.3.240.0080.03512.72
5.3.230.0030.04112.71
5.3.220.0030.04412.68
5.3.210.0050.04012.68
5.3.200.0100.03712.68
5.3.190.0030.0216.45
5.3.180.0070.03612.68
5.3.170.0090.03712.66
5.3.160.0050.03812.68
5.3.150.0050.03812.67
5.3.140.0070.04412.66
5.3.130.0080.03712.66
5.3.120.0040.04112.66
5.3.110.0080.04212.66
5.3.100.0070.03512.13
5.3.90.0050.03812.11
5.3.80.0070.03512.09
5.3.70.0040.03712.09
5.3.60.0050.04112.08
5.3.50.0060.04012.03
5.3.40.0050.03712.02
5.3.30.0070.03511.98
5.3.20.0070.04211.77
5.3.10.0060.03611.73
5.3.00.0060.03711.71

preferences:
136.35 ms | 1394 KiB | 7 Q