SolrUtils::escapeQueryChars

(PECL solr >= 0.9.2)

SolrUtils::escapeQueryCharsEscapes a lucene query string

Descrição

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

Parâmetros

str

This is the query string to be escaped.

Valor Retornado

Returns the escaped string ou FALSE em caso de falha.

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User Contributed Notes 1 note

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Ian
1 year 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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