SolrUtils::escapeQueryChars()

(PECL solr >= 0.9.2)

Escapes a lucene query string

说明

publicstaticSolrUtils::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.

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);
?>