Convert HTML entities to characters using php function
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 $str = "<© 3WCSçh°°¦§>"; echo html_entity_decode($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：
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)
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
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 < （小于）
> 解码成 > （大于）
那我们来看看他的语法吧。
htmlspecialchars_decode(string,flags)
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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