PHP, print_r() helper function. Prints arrays out in a nice, formatted, human readable way.

printr_func.php

/**
 * Prints out array in human readable form, just a helper function
 * @param  array  $arr The wanted array to be printed
 * @return array       The array in human readable form
 */
function printr_func($arr)
{
    echo "<pre class='printr'><code>";
        print_r($arr);
    echo "</code></pre>";
}