PHP Spintax Function

UPDATE: Please use the new improved version PHP Spintax Class HERE

Internet Marketers often use something they call Spintax. Spintax let’s you wrap text in syntax like this {option 1|option 2|option 3} and when processed, it will randomly select one of the text in between the Pipes to show a random text. This function also allows you to nest Spintax inside of other Spintax blocks.

The code is pretty straight forward so I will not go over it, if you have any questions leave a comment…

$str = 'My {spintax|spuntext} formatted string will return {option 1|option 2|option 3}';
echo SpinTax($str);


/**
 * @name SpinTax
 * @var str Text containing our {spintax|spuntext}
 * @return str Text with random spintax selections
 */
function SpinTax($s) {
    preg_match('#{(.+?)}#is',$s,$m);
    if(empty($m)) return $s;

    $t = $m[1];

    if(strpos($t,'{')!==false){
            $t = substr($t, strrpos($t,'{') + 1);
    }

    $parts = explode("|", $t);
    $s = preg_replace("+{".preg_quote($t)."}+is", $parts[array_rand($parts)], $s, 1);

    return SpinTax($s);
}