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run code in 300+ PHP versions simultaneously

@ 2013-09-12T17:10:11Z

<?php

$chanstring =  "\x01-07 / %x08-09 / %x0B-0C / %x0E-1F / %x21-2B / %x2D-39 / %x3B-FF";


function arrFromString($string) {
    $explosion = explode('-',$string);
    $lower = str_split($explosion[0]);
    $upper = str_split($explosion[1]);

    $arr = array();
	$curr = $lower;
    while (implode('',$curr) != implode('',$upper)) {
        $arr[] = chr(hexdec(implode('',$curr)));
        if (is_numeric($curr[1])) {
            $curr[1]++;
            if ($curr[1] > 9) {
                $curr[1] = 'A';
            }
        } else {
            $curr[1] = chr(ord($curr[1]) + 1);
            if ($curr[1] === 'G') {
                $curr[1] = 0;

                if (is_numeric($curr[0])) {
                    $curr[0]++;
                    if ($curr[0] > 9) {
                        $curr[0] = 'A';
                    }
                } else {
            		$curr[1] = chr(ord($curr[1]) + 1);
                }
            }
        }
    }
    $arr[] = chr(hexdec(implode('',$curr)));
    return $arr;
}

print_r(arrFromString('21-2B'));

Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7: Array ( [0] => ! [1] => " [2] => # [3] => $ [4] => % [5] => & [6] => ' [7] => ( [8] => ) [9] => * [10] => + )
Output for 4.4.5 - 4.4.9: Fatal error: Call to undefined function: str_split() in /in/DDtDd on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4: Fatal error: Call to undefined function: str_split() in /in/DDtDd on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: str_split() in /in/DDtDd on line 8

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