xpath_eval_expression
(PHP 4 >= 4.0.4)
xpath_eval_expression --
Evaluates the XPath Location Path in the given string
Description
XPathObject
xpath_eval_expression ( XPathContext xpath_context, string expression )
警告 |
這個函數是實驗性質的。這個函數的行為、名稱、和關於此函數的任何其他文件在未來PHP的發行中可能會在不通知的情況下改變。 使用此延伸需自行承擔風險。 |
範例 1. xpath_eval_expression() Example
<?php
include("example.inc");
if (!$dom = domxml_open_mem($xmlstr)) { echo "Error while parsing the document\n"; exit; }
$xpath = xpath_new_context($dom); var_dump(xpath_eval_expression($xpath, '/chapter/@language'));
?>
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The above example will output: object(XPathObject)(2) {
["type"]=>
int(1)
["nodeset"]=>
array(1) {
[0]=>
object(domattribute)(5) {
["type"]=>
int(2)
["name"]=>
string(8) "language"
["value"]=>
string(2) "en"
[0]=>
int(7)
[1]=>
int(138004256)
}
}
} |
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See also xpath_eval().