php html_entity_decode实例教程
关于html_entity_decode在大多数情况下是与htmlspecialchars htmlentities配合使用的
html_entity_decode用法:
string html_entity_decode ( string $string [, int $quote_style = ENT_COMPAT [, string $charset ]] )
html_entity_decode() 函数把 HTML 实体转换为字符。
html_entity_decode() 是 htmlentities() 的反函数也html_entity_decode() 是 htmlspecialchars() 的反函数。
$str = "A 'quote' is <b>bold http://www.phprm.com>";
Outputs: A 'quote' is <b>bold</b>
$s = htmlspecialchars($str);
echo $s;
Outputs: A 'quote' is <b>boldwww.phprm.com</b>
echo html_entity_decode($s);
A 'quote' is bold
再看一个实例
<?php
$str = "John & 'Adams'";
echo html_entity_decode($str);
echo "<br />";
echo html_entity_decode($str, ENT_QUOTES);
echo "<br />";
echo html_entity_decode($str, ENT_NOQUOTES);
?>浏览器输出:
John & 'Adams'
John & 'Adams'
John & 'Adams'如果在浏览器中查看源代码,会看到这些 HTML:
<html>
<body>
John & 'Adams'<br />
John & 'Adams'<br />
John & 'Adams'
</body>
</html>
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