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PHP - Manual: DOMXPath::quote - 互联网笔记

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PHP官方手册 - 互联网笔记

PHP - Manual: DOMXPath::quote

2025-06-02

DOMXPath::quote

(PHP 8 >= 8.4.0)

DOMXPath::quote Quotes a string for use in an XPath expression

说明

public static DOMXPath::quote(string $str): string

Quotes str for use in an XPath expression.

参数

str
The string to quote.

返回值

Returns a quoted string to be used in an XPath expression.

示例

示例 #1 Matching attribute value with quotes

<?php
$doc
= new DOMDocument;
$doc->loadXML(<<<XML
<books>
<book name="'quoted' name">Book title</book>
</books>
XML);

$xpath = new DOMXPath($doc);

$query = "//book[@name=" . DOMXPath::quote("'quoted' name") . "]";
echo
$query, "\n";

$entries = $xpath->query($query);

foreach (
$entries as $entry) {
echo
"Found ", $entry->textContent, "\n";
}
?>

以上示例会输出:

//book[@name="'quoted' name"]
Found Book title

Mixed quote types are also supported:

<?php
echo DOMXPath::quote("'different' \"quote\" styles");
?>

以上示例会输出:

concat("'different' ",'"quote" styles')

参见

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官方地址:https://www.php.net/manual/en/domxpath.quote.php

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