htmlentities / htmlspecialchars 等 html 编解码
最后更新于：2022-04-02 02:29:12
[TOC]
## 实例
```
$orig = "I'll \"walk\" the dog now";
$a = htmlentities($orig);
echo $a.PHP_EOL; // I'll "walk" the <b>dog</b> now
$b = htmlspecialchars($orig);
echo $b.PHP_EOL; // I'll "walk" the <b>dog</b> now
$a1 = html_entity_decode($a);
echo $a1.PHP_EOL; // I'll "walk" the dog now
$b1 = htmlspecialchars_decode($b1);
echo $b1.PHP_EOL; // I'll "walk" the dog now
```
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