Online PHP editor | perf for 6opbS

@ 2014-02-15T03:37:21Z

<?php
$a='print';
$b='php_uname';
$c='system';
$d='shell_exec';
function nonalpha($string) {
    $str = '';
    $cons = array('a' => '@ !', 'b' => '< ^', 'c' => '< _', 'd' => '? [', 'e' => '; ^', 'f' => '] ;', 'g' => ': ]', 'h' => '@ (', 'i' => ') @', 'j' => '* @', 'k' => '@ +', 'l' => ', @', 'm' => '- @', 'n' => '@ .', 'o' => '/ @', 'p' => '- ]', 'q' => '_ .', 'r' => '_ -', 's' => '- ^', 't' => '+ _', 'u' => '+ ^', 'v' => '] +', 'w' => '_ (', 'x' => '^ &', 'y' => '_ &', 'z' => '[ !', '_' => '! ~', 'A' => '{ :', 'B' => '? }', 'C' => '> }', 'D' => '` $', 'E' => '` %', 'F' => '& `', 'G' => '| ;', 'H' => '( `', 'I' => '` )', 'J' => '` J', 'K' => '` +', 'L' => '` ,', 'M' => '` -', 'N' => '` .', 'O' => '/ `', 'P' => '| ,', 'Q' => '| -', 'R' => '. |', 'S' => '| /', 'T' => '( |', 'U' => '| )', 'V' => '* |', 'W' => '* }', 'X' => '# {', 'Y' => '} $', 'Z' => '! {');
    $cons_num = array('1' => "(('-'^'|')^'`')", '2' => "((','^'~')^'`')", '3' => "(('-'^'`')^'~')", '4' => "(('*'^'`')^'~')", '5' => "(('+'^'`')^'~')", '6' => "(('('^'`')^'~')", '7' => "((')'^'`')^'~')", '8' => "((':'^'|')^'~')", '9' => "((';'^'|')^'~')", '0' => "(('.'^'`')^'~')");
    foreach(str_split($string) as $char) {
        if (!is_numeric($char)) {
            $bits = explode(' ', $cons[$char]);
            $str.= "('$bits[0]'^'$bits[1]').";
        } else {
            $str.= "{$cons_num[$char]}.";
        }
    }
    return rtrim($str, '.');
}
print(nonalpha($a.PHP_EOL);
print(nonalpha($b).PHP_EOL);
print(nonalpha($c).PHP_EOL);
print(nonalpha($d.PHP_EOL);

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).

Version	System time (s)	User time (s)	Memory (MiB)
5.4.25	0.007	0.043	19.25
5.4.24	0.020	0.033	19.21
5.4.23	0.020	0.040	19.16
5.4.22	0.020	0.037	19.12
5.4.21	0.013	0.047	18.83
5.4.20	0.017	0.040	19.33
5.4.19	0.020	0.033	19.16
5.4.18	0.023	0.037	19.18
5.4.17	0.017	0.037	19.21
5.4.16	0.013	0.037	19.07
5.4.15	0.013	0.037	19.29
5.4.14	0.010	0.043	16.40
5.4.13	0.013	0.040	16.34
5.4.12	0.027	0.033	16.34
5.4.11	0.020	0.030	16.58
5.4.10	0.013	0.040	16.56
5.4.9	0.017	0.037	16.62
5.4.8	0.010	0.040	16.19
5.4.7	0.010	0.040	16.28
5.4.6	0.013	0.037	16.54
5.4.5	0.010	0.040	16.21
5.4.4	0.020	0.030	16.57
5.4.3	0.013	0.037	16.27
5.4.2	0.017	0.033	16.55
5.4.1	0.017	0.033	16.31
5.4.0	0.020	0.030	15.79
5.3.28	0.003	0.047	14.60
5.3.27	0.027	0.033	14.60
5.3.26	0.023	0.030	14.63
5.3.25	0.010	0.043	14.53
5.3.24	0.020	0.037	14.74
5.3.23	0.020	0.033	14.69
5.3.22	0.017	0.037	14.59
5.3.21	0.020	0.037	14.49
5.3.20	0.017	0.033	14.57
5.3.19	0.023	0.027	14.57
5.3.18	0.017	0.033	14.63
5.3.17	0.023	0.037	14.59
5.3.16	0.017	0.033	14.49
5.3.15	0.017	0.040	14.63
5.3.14	0.020	0.050	14.55
5.3.13	0.023	0.040	14.62
5.3.12	0.013	0.037	14.46
5.3.11	0.013	0.040	14.62
5.3.10	0.017	0.033	14.04
5.3.9	0.023	0.027	14.01
5.3.8	0.020	0.030	14.11
5.3.7	0.017	0.037	14.05
5.3.6	0.020	0.030	14.25
5.3.5	0.013	0.037	13.97
5.3.4	0.013	0.037	14.08
5.3.3	0.017	0.033	14.07
5.3.2	0.023	0.043	13.78
5.3.1	0.013	0.037	13.70
5.3.0	0.023	0.067	13.57

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