SolrUtils::escapeQueryChars

(PECL solr >= 0.9.2)

SolrUtils::escapeQueryCharsEscapes a lucene query string

Опис

public static string SolrUtils::escapeQueryChars ( 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

Параметри

str

This is the query string to be escaped.

Значення, що повертаються

Returns the escaped string або FALSE в разі помилки.

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User Contributed Notes 1 note

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-8
Ian
9 years ago
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);
?>
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