摘要：<?php $codes = '<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>PHP字符串操作之
<?php
$codes = '<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>PHP字符串操作之HTML标签与特殊字符解析与还原</title>
<style type="text/css">
h1{margin: 0px;color: red;background: #ccc;}
h3{margin: 0px;color: red;background: #ccc;}
h5{margin: 0px;color: red;background: #ccc;}
body{font-size: 24px;color: #aaa;}
</style>
</head>
<body>
<h1>PHP字符串操作之HTML标签与特殊字符解析与还原</h1>
</body>
</html>';
echo '自动解析:',($codes);
echo '<hr>';
echo '去掉HTML标签:<br>',strip_tags($codes),'<hr>';
$poetry = "春眠不觉晓 \n 处处闻啼鸟";
echo '\\n被无视:',$poetry, '<br>';
echo '\\n被<br>替换:',nl2br($poetry), '<hr>';
$str = '<h2>我是\\\' "括号里"的</h2>';
echo '不转义:',$str, '<br>';
echo '转义:<br>', htmlspecialchars($str), '<hr>';
$str3 = "<h2>我是'一个&nbsp;有"故事"的人</h2>";
echo '未解析:',$str3,'<br>';
echo '解析:',htmlspecialchars_decode($str3), '<hr>';
echo '<hr>';
$str4 = "<h6>中美&贸\$易战,'中国'必胜</h6>";
echo $str4;
echo htmlentities($str4),'<br>';
echo '<hr>';
批改老师：韦小宝批改时间：2018-11-29 17:58:33
老师总结：嗯！写的很不错哦！但是课后要记得多多练习哦！基础很重要！
