I will once I see google stop lying to me.
Basically pr0phet hit the nail on the head.
Two days earlier I did that search and went hmm.
The cause of the disparity is duplicated content.
So while I can't share the seo tip just yet I'll share this instead.
Code:
function spin($s){
preg_match('#\{(.+?)\}#is',$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)], $s, 1);
return spin($s);
}
//Example:
echo spin('{This|Here} is {some|a {little|wee} bit of} {example|sample} text.');