PHP マニュアル: Quotes a string for use in an XPath expression

説明

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

Quotes str for use in an XPath expression.

パラメータ

str: The string to quote.

戻り値

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

例

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";
}
?>

上の例の出力は以下となります。

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

Mixed quote types are also supported:

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

上の例の出力は以下となります。

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

参考

DOMXPath::evaluate
DOMXPath::query