(PECL solr >= 0.9.2)
SolrUtils::escapeQueryChars — Escapes a lucene query string
$str
)Lucene supports escaping special characters that are part of the query syntax.
The current list special characters are:
+ - && || ! ( ) { } [ ] ^ " ~ * ? : \ /
These characters are part of the query syntax and must be escaped
strThis is the query string to be escaped.
Returns the escaped string or FALSE on failure.
A way of doing that with a regular expression:
<?php
// Lucene characters that need escaping with \ are + - && || ! ( ) { } [ ] ^ " ~ * ? : \
$luceneReservedCharacters = preg_quote('+-&|!(){}[]^"~*?:\\');
$query = preg_replace_callback(
'/([' . $luceneReservedCharacters . '])/',
function($matches) {
return '\\' . $matches[0];
},
$query);
?>
