WordPress/Sniffs/PHP/PregQuoteDelimiterSniff.php
public function process_parameters( $stackPtr, $group_name, $matched_content, $parameters ) {
		if ( \count( $parameters ) > 1 ) {
			return;
		}

		$this->phpcsFile->addWarning(
			'Passing the $delimiter as the second parameter to preg_quote() is strongly recommended.',
			$stackPtr,
			'Missing'
		);
	}
public function process_parameters( $stackPtr, $group_name, $matched_content, $parameters ) {
		if ( \count( $parameters ) > 1 ) {
			return;
		}

		$this->phpcsFile->addWarning(
			'Passing the $delimiter as the second parameter to preg_quote() is strongly recommended.',
			$stackPtr,
			'Missing'
		);
	}
Process the parameters of a matched function.

@since 1.0.0

@param int    $stackPtr        The position of the current token in the stack.
@param array  $group_name      The name of the group which was matched.
@param string $matched_content The token content (function name) which was matched.
@param array  $parameters      Array with information about the parameters.

@return void