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Convert HTML entities to characters using php function

醉折花枝作酒筹

Aug 03, 2021 pm 03:25 PM

php

上一篇文章中我们了解了对字符串进行编码和解码的方法，有需要的请看《php字符串函数运用之对字符串进行编码和解码》。这次我们向大家介绍HTML实体转换为字符的方法，有需要的可以参考参考。

首先我们来看一下什么叫做HTML实体。

有些字符，像(

了解什么叫html实体之后，我们就来介绍如何将html实体转换为字符。其实将hrml实体转换成字符的方法有两种，我们先来介绍第一种。

第一种、html_entity_decode() 函数

让我们来看一个小例子。

<?php
$str = "<&copy; 3WCS&ccedil;h&deg;&deg;&brvbar;&sect;>";
echo html_entity_decode($str);
?>

上面代码的 HTML 输出如下：

<!DOCTYPE html>
<html>
<body>
<© 3WCSçh°°¦§>
</body>
</html>

上面代码的浏览器输出如下：

Convert HTML entities to characters using php function

我们可以看这个小案例，它使用了html_entity_decode函数将html实体转换成字符。我们下面就来仔细看看。

先来看看这个函数的语法。

html_entity_decode(string,flags,character-set)

Convert HTML entities to characters using php function

这第一个方法介绍完了，下面我们就来介绍第二种方法。

第二种、htmlspecialchars_decode()函数

我们来看一下栗子。

<?php
$str = "This is some <b>bold</b> text.";
echo htmlspecialchars_decode($str);
?>

上面代码的 HTML 输出如下：

<!DOCTYPE html>
<html>
<body>
This is some <b>bold</b> text.
</body>
</html>

结果是

Convert HTML entities to characters using php function

看这个html代码是不是就很熟悉了，这个b标签是不是也很熟悉，你有没有想到什么？

是的，没错，这个函数可以将以及预定义好的html实体转换成字符，我们具体看看吧。

htmlspecialchars_decode() 函数把一些预定义的 HTML 实体转换为字符。

会被解码的 HTML 实体是：

& 解码成 & （和号）
" 解码成 " （双引号）
' 解码成 ' （单引号）
> 解码成 > （大于）

那我们来看看他的语法吧。

htmlspecialchars_decode(string,flags)

Convert HTML entities to characters using php function

就说到这里了，有其他想知道的，可以点击这个哦。→ →php视频教程

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