PHP | DOMNode getLineNo()函数
DOMNode::getLineNo()函数是PHP中的一个内置函数,用于获取定义节点的行号。
句法:
DOMNode DOMNode::getLineNo( void )
参数:此函数不接受任何参数。
返回值:此函数返回定义节点的行号。
下面给出的程序说明了PHP中的DOMNode::getLineNo()函数:
方案一:
GeeksforGeeks
XML;
// Create a new DOMDocument instance
$dom = new DOMDocument;
// Load the XML
$dom->loadXML($xml);
// Print where the line where the 'node' element was defined in
echo 'The tag is defined on line ' . $dom->getElementsByTagName('h1')->item(0)->getLineNo();
?>
输出:
The tag is defined on line 3
方案二:
Geeks
For
Geeks
XML;
// Create a new DOMDocument instance
$dom = new DOMDocument();
// Load the XML
$dom->loadXML($xml);
for ($i = 0; $i < 3; $i++) {
// Print where the line where the 'node' element was defined in
echo $i . ') The h1 tag is defined on line ' . $dom->getElementsByTagName('h1')->item($i)->getLineNo() . "
";
}
?>
输出:
0) The h1 tag is defined on line 3
1) The h1 tag is defined on line 4
2) The h1 tag is defined on line 5
参考: https://www. PHP.net/manual/en/domnode.getlineno。 PHP