我有以下 test.php文件，当我运行它时，关闭 </h1>标签被删除。
<?php
$doc = new DOMDocument();
$doc->loadHTML('<html>
<head>
<script>
console.log("<h1>hello</h1>");
</script>
</head>
<body>
</body>
</html>');
echo $doc->saveHTML();
这是我执行文件时的结果:
PHP Warning: DOMDocument::loadHTML(): Unexpected end tag : h1 in Entity, line: 4 in /home/ryan/NetBeansProjects/blog/test.php on line 14
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
<script>
console.log("<h1>hello");
</script>
</head>
<body>
</body>
</html>
那么，为什么要删除标签？它是一个字符串，所以它不应该忽略它吗？
最佳答案
想到的唯一解决方案是预先匹配脚本标签，然后将它们替换为临时持有者，如 <script id="myuniqueid"></script>并在 dom 管理结束时再次替换为实际脚本，如下所示:
// The dom doc
$doc = new DOMDocument();
// The html
$html = '<html>
<head>
<script>
console.log("<h1>hello</h1>");
</script>
</head>
<body>
</body>
</html>';
// Patter for scripts
$pattern = "/<script([^']*?)<\/script>/";
// Get all scripts
preg_match_all($pattern, $html, $matches);
// Only unique scripts
$matches = array_unique( $matches[0] );
// Construct the arrays for replacement
foreach ( $matches as $match ) {
// The simple script
$id = uniqid('script_');
$uniqueScript = "<script id=\"$id\"></script>";
$simple[] = $uniqueScript;
// The complete script
$complete[] = $match;
}
// Replace the scripts with the simple scripts
$html = str_replace($complete, $simple, $html);
// load the html into the dom
$doc->loadHTML( $html);
// Do the dom management here
// TODO: Whatever you do with the dom
// When finished
// Get the html back
$html = $doc->saveHTML();
// Replace the scripts back
$html = str_replace($simple, $complete, $html);
//Print the result
echo $html;
此解决方案打印干净，没有 dom 错误。
关于php - DOMDocument 删除脚本标签中的结束标签，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33426788/