DOMNode::getLineNo

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

DOMNode::getLineNo — Get line number for a node

说明

public DOMNode::getLineNo(): int

Gets line number for where the node is defined.

参数

此函数没有参数。

返回值

Always returns the line number where the node was defined in.

范例

示例 #1 DOMNode::getLineNo() example


<?php
// XML dump for below example
$xml = <<<XML
<?xml version="1.0" encoding="utf-8"?>
<root>
    <node />
</root>
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
printf('The <node> tag is defined on line %d', $dom->getElementsByTagName('node')->item(0)->getLineNo());
?>

以上例程会输出：

The <node> tag is defined in line 3

add a note

User Contributed Notes 3 notes

down

ruud at vanmelick dot com ¶

8 years ago


The 65535 line number limit is no longer a problem when you use libxml 2.9 or higher, but you have to explicitly enable support for big line numbers:

<?php
define('XML_PARSE_BIG_LINES', 4194304);
$dom = new DOMDocument;
$dom->loadXML($xml, XML_PARSE_BIG_LINES);
?>

down

luke dot NOREPLY at webconnex dot com ¶

11 years ago


This function is buggy. It doesn't always return the correct line number, especially for text elements. As an alternative you can do something like this:

<?php
$text = $node->ownerDocument->saveXML($node);
$line += substr_count($text, "\n");
?>

You'll want to keep a reference to $line (starting at 0) and add to it as you parse over the document recursively.

In order for this to work you have to tell DOMDocument to preserve white space before loading the document.

down

Anonymous ¶

10 years ago


The DOMNode::getLineNo() method doesn't work properly due to a libxml2 bug. 

https://bugzilla.gnome.org/show_bug.cgi?id=676026

add a note

官方地址：https://www.php.net/manual/en/domnode.getlineno.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络 JAVA NoSQL 数据库面试 C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet ADORecordSet对象 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 adodb手册 opcache预加载 Composer的Packagist资源 mysql面试题 php中几种注释规范 php扩展开发 PHP7 mcrypt替代方案 [原创]诡异的php-fpm超时问题 Packagist / Composer 中国全量镜像 laravel框架查看sql语句方式支持php7的性能采集扩展

略微加速

PHP官方手册 - 互联网笔记

DOMNode::getLineNo

说明

参数

返回值

范例

User Contributed Notes 3 notes