SolrUtils::escapeQueryChars

(PECL solr >= 0.9.2)

SolrUtils::escapeQueryChars — Escapes a lucene query string

说明

public static SolrUtils::escapeQueryChars ( string $str ) : string

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

参数

str

This is the query string to be escaped.

返回值

Returns the escaped string 或者在失败时返回 FALSE.

User Contributed Notes

Ian 30-Jul-2013 08:51
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);
?>