protected function getStringsFrequency()
	{
		$regexp = '(' . implode('|', $this->deduplicateTargets) . ')S';
		preg_match_all($regexp, $this->xsl, $matches);

		return array_count_values($matches[0]);
	}
protected function getStringsFrequency()
	{
		$regexp = '(' . implode('|', $this->deduplicateTargets) . ')S';
		preg_match_all($regexp, $this->xsl, $matches);

		return array_count_values($matches[0]);
	}
protected function getStringsFrequency ( ) { $ regexp = '(' . implode ( '|' , $ this -> deduplicateTargets ) . ')S' ; preg_match_all ( $ regexp , $ this -> xsl , $ matches ) ; return array_count_values ( $ matches [ 0 ] ) ; }
Return the frequency of all deduplicatable strings

@return array Array of [string => frequency]
Return the frequency of all deduplicatable strings