crazy errors on all pages of site

some of them say that it’s line 199

Check this if it would be of any help https://www.ads-software.com/support/topic/warning-preg_match-functionpreg-match-errors?replies=15

preg_match() is a core function of php.

When it throws compilation errors, it basically means that the first parameter that is passed to the function is written incorrectly.

preg_match(“FIRST PARAMETER”,”SECOND PARAMETER”);

Can you open the file in a text editor like Textwrangler or UltraEdit32 and look at the code and fix?

https://php.net/manual/en/function.preg-match.php

I can’t work out what to edit.

Here’s what the file is:

<?php
/**
 * WordPress environment setup class.
 *
 * @package WordPress
 * @since 2.0.0
 */
class WP {
	/**
	 * Public query variables.
	 *
	 * Long list of public query variables.
	 *
	 * @since 2.0.0
	 * @access public
	 * @var array
	 */
	var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'taxonomy', 'term', 'cpage', 'post_type');

	/**
	 * Private query variables.
	 *
	 * Long list of private query variables.
	 *
	 * @since 2.0.0
	 * @var array
	 */
	var $private_query_vars = array('offset', 'posts_per_page', 'posts_per_archive_page', 'showposts', 'nopaging', 'post_type', 'post_status', 'category__in', 'category__not_in', 'category__and', 'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'tag_id', 'post_mime_type', 'perm', 'comments_per_page', 'post__in', 'post__not_in');

	/**
	 * Extra query variables set by the user.
	 *
	 * @since 2.1.0
	 * @var array
	 */
	var $extra_query_vars = array();

	/**
	 * Query variables for setting up the WordPress Query Loop.
	 *
	 * @since 2.0.0
	 * @var array
	 */
	var $query_vars;

	/**
	 * String parsed to set the query variables.
	 *
	 * @since 2.0.0
	 * @var string
	 */
	var $query_string;

	/**
	 * Permalink or requested URI.
	 *
	 * @since 2.0.0
	 * @var string
	 */
	var $request;

	/**
	 * Rewrite rule the request matched.
	 *
	 * @since 2.0.0
	 * @var string
	 */
	var $matched_rule;

	/**
	 * Rewrite query the request matched.
	 *
	 * @since 2.0.0
	 * @var string
	 */
	var $matched_query;

	/**
	 * Whether already did the permalink.
	 *
	 * @since 2.0.0
	 * @var bool
	 */
	var $did_permalink = false;

	/**
	 * Add name to list of public query variables.
	 *
	 * @since 2.1.0
	 *
	 * @param string $qv Query variable name.
	 */
	function add_query_var($qv) {
		if ( !in_array($qv, $this->public_query_vars) )
			$this->public_query_vars[] = $qv;
	}

	/**
	 * Set the value of a query variable.
	 *
	 * @since 2.3.0
	 *
	 * @param string $key Query variable name.
	 * @param mixed $value Query variable value.
	 */
	function set_query_var($key, $value) {
		$this->query_vars[$key] = $value;
	}

	/**
	 * Parse request to find correct WordPress query.
	 *
	 * Sets up the query variables based on the request. There are also many
	 * filters and actions that can be used to further manipulate the result.
	 *
	 * @since 2.0.0
	 *
	 * @param array|string $extra_query_vars Set the extra query variables.
	 */
	function parse_request($extra_query_vars = '') {
		global $wp_rewrite;

		$this->query_vars = array();
		$post_type_query_vars = array();

		if ( is_array($extra_query_vars) )
			$this->extra_query_vars = & $extra_query_vars;
		else if (! empty($extra_query_vars))
			parse_str($extra_query_vars, $this->extra_query_vars);

		// Process PATH_INFO, REQUEST_URI, and 404 for permalinks.

		// Fetch the rewrite rules.
		$rewrite = $wp_rewrite->wp_rewrite_rules();

		if ( ! empty($rewrite) ) {
			// If we match a rewrite rule, this will be cleared.
			$error = '404';
			$this->did_permalink = true;

			if ( isset($_SERVER['PATH_INFO']) )
				$pathinfo = $_SERVER['PATH_INFO'];
			else
				$pathinfo = '';
			$pathinfo_array = explode('?', $pathinfo);
			$pathinfo = str_replace("%", "%25", $pathinfo_array[0]);
			$req_uri = $_SERVER['REQUEST_URI'];
			$req_uri_array = explode('?', $req_uri);
			$req_uri = $req_uri_array[0];
			$self = $_SERVER['PHP_SELF'];
			$home_path = parse_url(home_url());
			if ( isset($home_path['path']) )
				$home_path = $home_path['path'];
			else
				$home_path = '';
			$home_path = trim($home_path, '/');

			// Trim path info from the end and the leading home path from the
			// front.  For path info requests, this leaves us with the requesting
			// filename, if any.  For 404 requests, this leaves us with the
			// requested permalink.
			$req_uri = str_replace($pathinfo, '', $req_uri);
			$req_uri = trim($req_uri, '/');
			$req_uri = preg_replace("|^$home_path|", '', $req_uri);
			$req_uri = trim($req_uri, '/');
			$pathinfo = trim($pathinfo, '/');
			$pathinfo = preg_replace("|^$home_path|", '', $pathinfo);
			$pathinfo = trim($pathinfo, '/');
			$self = trim($self, '/');
			$self = preg_replace("|^$home_path|", '', $self);
			$self = trim($self, '/');

			// The requested permalink is in $pathinfo for path info requests and
			//  $req_uri for other requests.
			if ( ! empty($pathinfo) && !preg_match('|^.*' . $wp_rewrite->index . '$|', $pathinfo) ) {
				$request = $pathinfo;
			} else {
				// If the request uri is the index, blank it out so that we don't try to match it against a rule.
				if ( $req_uri == $wp_rewrite->index )
					$req_uri = '';
				$request = $req_uri;
			}

			$this->request = $request;

			// Look for matches.
			$request_match = $request;
			foreach ( (array) $rewrite as $match => $query) {
				// Don't try to match against AtomPub calls
				if ( $req_uri == 'wp-app.php' )
					break;

				// If the requesting file is the anchor of the match, prepend it
				// to the path info.
				if ( (! empty($req_uri)) && (strpos($match, $req_uri) === 0) && ($req_uri != $request) )
					$request_match = $req_uri . '/' . $request;

				if ( preg_match("#^$match#", $request_match, $matches) ||
					preg_match("#^$match#", urldecode($request_match), $matches) ) {
					// Got a match.
					$this->matched_rule = $match;

					// Trim the query of everything up to the '?'.
					$query = preg_replace("!^.+\?!", '', $query);

					// Substitute the substring matches into the query.
					$query = addslashes(WP_MatchesMapRegex::apply($query, $matches));

					$this->matched_query = $query;

					// Parse the query.
					parse_str($query, $perma_query_vars);

					// If we're processing a 404 request, clear the error var
					// since we found something.
					if ( isset($_GET['error']) )
						unset($_GET['error']);

					if ( isset($error) )
						unset($error);

					break;
				}
			}

			// If req_uri is empty or if it is a request for ourself, unset error.
			if ( empty($request) || $req_uri == $self || strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false ) {
				if ( isset($_GET['error']) )
					unset($_GET['error']);

				if ( isset($error) )
					unset($error);

				if ( isset($perma_query_vars) && strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false )
					unset($perma_query_vars);

				$this->did_permalink = false;
			}
		}

		$this->public_query_vars = apply_filters('query_vars', $this->public_query_vars);

		foreach ( $GLOBALS['wp_post_types'] as $post_type => $t )
			if ( $t->query_var )
				$post_type_query_vars[$t->query_var] = $post_type;

		foreach ( $this->public_query_vars as $wpvar ) {
			if ( isset( $this->extra_query_vars[$wpvar] ) )
				$this->query_vars[$wpvar] = $this->extra_query_vars[$wpvar];
			elseif ( isset( $_POST[$wpvar] ) )
				$this->query_vars[$wpvar] = $_POST[$wpvar];
			elseif ( isset( $_GET[$wpvar] ) )
				$this->query_vars[$wpvar] = $_GET[$wpvar];
			elseif ( isset( $perma_query_vars[$wpvar] ) )
				$this->query_vars[$wpvar] = $perma_query_vars[$wpvar];

			if ( !empty( $this->query_vars[$wpvar] ) ) {
				if ( ! is_array( $this->query_vars[$wpvar] ) ) {
					$this->query_vars[$wpvar] = (string) $this->query_vars[$wpvar];
				} else {
					foreach ( $this->query_vars[$wpvar] as $vkey => $v ) {
						if ( !is_object( $v ) ) {
							$this->query_vars[$wpvar][$vkey] = (string) $v;
						}
					}
				}

				if ( isset($post_type_query_vars[$wpvar] ) ) {
					$this->query_vars['post_type'] = $post_type_query_vars[$wpvar];
					$this->query_vars['name'] = $this->query_vars[$wpvar];
				}
			}
		}

		// Convert urldecoded spaces back into +
		foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t )
			if ( $t->query_var && isset( $this->query_vars[$t->query_var] ) )
				$this->query_vars[$t->query_var] = str_replace( ' ', '+', $this->query_vars[$t->query_var] );

		// Limit publicly queried post_types to those that are publicly_queryable
		if ( isset( $this->query_vars['post_type']) ) {
			$queryable_post_types = get_post_types( array('publicly_queryable' => true) );
			if ( ! is_array( $this->query_vars['post_type'] ) ) {
				if ( ! in_array( $this->query_vars['post_type'], $queryable_post_types ) )
					unset( $this->query_vars['post_type'] );
			} else {
				$this->query_vars['post_type'] = array_intersect( $this->query_vars['post_type'], $queryable_post_types );
			}
		}

		foreach ( (array) $this->private_query_vars as $var) {
			if ( isset($this->extra_query_vars[$var]) )
				$this->query_vars[$var] = $this->extra_query_vars[$var];
		}

		if ( isset($error) )
			$this->query_vars['error'] = $error;

		$this->query_vars = apply_filters('request', $this->query_vars);

		do_action_ref_array('parse_request', array(&$this));
	}

	/**
	 * Send additional HTTP headers for caching, content type, etc.
	 *
	 * Sets the X-Pingback header, 404 status (if 404), Content-type. If showing
	 * a feed, it will also send last-modified, etag, and 304 status if needed.
	 *
	 * @since 2.0.0
	 */
	function send_headers() {
		$headers = array('X-Pingback' => get_bloginfo('pingback_url'));
		$status = null;
		$exit_required = false;

		if ( is_user_logged_in() )
			$headers = array_merge($headers, wp_get_nocache_headers());
		if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) {
			$status = 404;
			if ( !is_user_logged_in() )
				$headers = array_merge($headers, wp_get_nocache_headers());
			$headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset');
		} else if ( empty($this->query_vars['feed']) ) {
			$headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset');
		} else {
			// We're showing a feed, so WP is indeed the only thing that last changed
			if ( !empty($this->query_vars['withcomments'])
				|| ( empty($this->query_vars['withoutcomments'])
					&& ( !empty($this->query_vars['p'])
						|| !empty($this->query_vars['name'])
						|| !empty($this->query_vars['page_id'])
						|| !empty($this->query_vars['pagename'])
						|| !empty($this->query_vars['attachment'])
						|| !empty($this->query_vars['attachment_id'])
					)
				)
			)
				$wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastcommentmodified('GMT'), 0).' GMT';
			else
				$wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT';
			$wp_etag = '"' . md5($wp_last_modified) . '"';
			$headers['Last-Modified'] = $wp_last_modified;
			$headers['ETag'] = $wp_etag;

			// Support for Conditional GET
			if (isset($_SERVER['HTTP_IF_NONE_MATCH']))
				$client_etag = stripslashes(stripslashes($_SERVER['HTTP_IF_NONE_MATCH']));
			else $client_etag = false;

			$client_last_modified = empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? '' : trim($_SERVER['HTTP_IF_MODIFIED_SINCE']);
			// If string is empty, return 0. If not, attempt to parse into a timestamp
			$client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0;

			// Make a timestamp for our most recent modification...
			$wp_modified_timestamp = strtotime($wp_last_modified);

			if ( ($client_last_modified && $client_etag) ?
					 (($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) :
					 (($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) {
				$status = 304;
				$exit_required = true;
			}
		}

		$headers = apply_filters('wp_headers', $headers, $this);

		if ( ! empty( $status ) )
			status_header( $status );
		foreach( (array) $headers as $name => $field_value )
			@header("{$name}: {$field_value}");

		if ( $exit_required )
			exit();

		do_action_ref_array('send_headers', array(&$this));
	}

	/**
	 * Sets the query string property based off of the query variable property.
	 *
	 * The 'query_string' filter is deprecated, but still works. Plugins should
	 * use the 'request' filter instead.
	 *
	 * @since 2.0.0
	 */
	function build_query_string() {
		$this->query_string = '';
		foreach ( (array) array_keys($this->query_vars) as $wpvar) {
			if ( '' != $this->query_vars[$wpvar] ) {
				$this->query_string .= (strlen($this->query_string) < 1) ? '' : '&';
				if ( !is_scalar($this->query_vars[$wpvar]) ) // Discard non-scalars.
					continue;
				$this->query_string .= $wpvar . '=' . rawurlencode($this->query_vars[$wpvar]);
			}
		}

		// query_string filter deprecated.  Use request filter instead.
		if ( has_filter('query_string') ) {  // Don't bother filtering and parsing if no plugins are hooked in.
			$this->query_string = apply_filters('query_string', $this->query_string);
			parse_str($this->query_string, $this->query_vars);
		}
	}

	/**
	 * Set up the WordPress Globals.
	 *
	 * The query_vars property will be extracted to the GLOBALS. So care should
	 * be taken when naming global variables that might interfere with the
	 * WordPress environment.
	 *
	 * @global string $query_string Query string for the loop.
	 * @global int $more Only set, if single page or post.
	 * @global int $single If single page or post. Only set, if single page or post.
	 *
	 * @since 2.0.0
	 */
	function register_globals() {
		global $wp_query;
		// Extract updated query vars back into global namespace.
		foreach ( (array) $wp_query->query_vars as $key => $value) {
			$GLOBALS[$key] = $value;
		}

		$GLOBALS['query_string'] = $this->query_string;
		$GLOBALS['posts'] = & $wp_query->posts;
		$GLOBALS['post'] = (isset($wp_query->post)) ? $wp_query->post : null;
		$GLOBALS['request'] = $wp_query->request;

		if ( is_single() || is_page() ) {
			$GLOBALS['more'] = 1;
			$GLOBALS['single'] = 1;
		}
	}

	/**
	 * Set up the current user.
	 *
	 * @since 2.0.0
	 */
	function init() {
		wp_get_current_user();
	}

	/**
	 * Set up the Loop based on the query variables.
	 *
	 * @uses WP::$query_vars
	 * @since 2.0.0
	 */
	function query_posts() {
		global $wp_the_query;
		$this->build_query_string();
		$wp_the_query->query($this->query_vars);
 	}

 	/**
 	 * Set the Headers for 404, if nothing is found for requested URL.
	 *
	 * Issue a 404 if a request doesn't match any posts and doesn't match
	 * any object (e.g. an existing-but-empty category, tag, author) and a 404 was not already
	 * issued, and if the request was not a search or the homepage.
	 *
	 * Otherwise, issue a 200.
	 *
	 * @since 2.0.0
 	 */
	function handle_404() {
		global $wp_query;

		if ( !is_admin() && ( 0 == count( $wp_query->posts ) ) && !is_404() && !is_robots() && !is_search() && !is_home() ) {
			// Don't 404 for these queries if they matched an object.
			if ( ( is_tag() || is_category() || is_tax() || is_author() || is_post_type_archive() ) && $wp_query->get_queried_object() && !is_paged() ) {
				if ( !is_404() )
					status_header( 200 );
				return;
			}
			$wp_query->set_404();
			status_header( 404 );
			nocache_headers();
		} elseif ( !is_404() ) {
			status_header( 200 );
		}
	}

	/**
	 * Sets up all of the variables required by the WordPress environment.
	 *
	 * The action 'wp' has one parameter that references the WP object. It
	 * allows for accessing the properties and methods to further manipulate the
	 * object.
	 *
	 * @since 2.0.0
	 *
	 * @param string|array $query_args Passed to {@link parse_request()}
	 */
	function main($query_args = '') {
		$this->init();
		$this->parse_request($query_args);
		$this->send_headers();
		$this->query_posts();
		$this->handle_404();
		$this->register_globals();
		do_action_ref_array('wp', array(&$this));
	}

}

/**
 * Helper class to remove the need to use eval to replace $matches[] in query strings.
 *
 * @since 2.9.0
 */
class WP_MatchesMapRegex {
	/**
	 * store for matches
	 *
	 * @access private
	 * @var array
	 */
	var $_matches;

	/**
	 * store for mapping result
	 *
	 * @access public
	 * @var string
	 */
	var $output;

	/**
	 * subject to perform mapping on (query string containing $matches[] references
	 *
	 * @access private
	 * @var string
	 */
	var $_subject;

	/**
	 * regexp pattern to match $matches[] references
	 *
	 * @var string
	 */
	var $_pattern = '(\$matches\[[1-9]+[0-9]*\])'; // magic number

	/**
	 * constructor
	 *
	 * @param string $subject subject if regex
	 * @param array  $matches data to use in map
	 * @return self
	 */
	function WP_MatchesMapRegex($subject, $matches) {
		$this->_subject = $subject;
		$this->_matches = $matches;
		$this->output = $this->_map();
	}

	/**
	 * Substitute substring matches in subject.
	 *
	 * static helper function to ease use
	 *
	 * @access public
	 * @param string $subject subject
	 * @param array  $matches data used for subsitution
	 * @return string
	 */
	function apply($subject, $matches) {
		$oSelf =& new WP_MatchesMapRegex($subject, $matches);
		return $oSelf->output;
	}

	/**
	 * do the actual mapping
	 *
	 * @access private
	 * @return string
	 */
	function _map() {
		$callback = array(&$this, 'callback');
		return preg_replace_callback($this->_pattern, $callback, $this->_subject);
	}

	/**
	 * preg_replace_callback hook
	 *
	 * @access public
	 * @param  array $matches preg_replace regexp matches
	 * @return string
	 */
	function callback($matches) {
		$index = intval(substr($matches[0], 9, -1));
		return ( isset( $this->_matches[$index] ) ? urlencode($this->_matches[$index]) : '' );
	}

}

?>

I don’t really use WP, but in english, there is something wrong with your rewrite rules. This line here is the problem.

if ( preg_match("#^$match#", $request_match, $matches) ||
					preg_match("#^$match#", urldecode($request_match), $matches) ) {

The variable $match has something improper in it.

You could probably remove the variable $match but it would probably break something.

Perhaps there is an area inside wordpress where you can type in rewrite rules? if so… that is where the problem most likely can be fixed without having to hack it.

Hope that helps.