protected function isMathML( $html ) {

		foreach ( $this->MathMLTags as $tag ) {
			if ( false !== stripos( $html, "<$tag>" ) ) {
				return true;
			}
		}

		return false;
	}
protected function isMathML( $html ) {

		foreach ( $this->MathMLTags as $tag ) {
			if ( false !== stripos( $html, "<$tag>" ) ) {
				return true;
			}
		}

		return false;
	}
protected function isMathML ( $ html ) { foreach ( $ this -> MathMLTags as $ tag ) { if ( false !== stripos ( $ html , "<$tag>" ) ) { return true ; } } return false ; }
Check for existence of scripting MathML elements

@param string $html

@return bool
Check for existence of scripting MathML elements