WordPress中转义HTML与过滤链接的相关PHP函数使用解析_php技巧
esc_html()(转义 Html)
esc_html() 函数用来转义 Html 代码,让 Html 代码不转义。
用法
esc_html( $text );
参数
$text
(字符串)(必须)要转义的字符串。
默认值:None
返回值
(字符串)返回转义后的字符。
例子
echo esc_html( '<a href="http://www.example.com/">A link</a>' );
上边的代码将输出:
WordPress 函数:esc_html()(转义 Html)
(为了防止浏览器转码,我直接截了一张图)
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此函数位于:wp-includes/formatting.php
esc_url()(过滤链接)
很多 URL 会有一些小错误,用 esc_url() 函数可以屏蔽或者修正这些错误,并且可以拒绝不安全的协议。
esc_url() 函数的工作内容:
默认拒绝不是下面协议的 URL:defaulting to http、https、ftp、ftps、mailto、news、irc、gopher、nntp、feed 和 telnet
删除无效字符和危险的字符
将字符转换成 HTML 实体字符
使用方法
esc_url( $url, $protocols, $_context );
参数
$url
(字符串)(必须)要被过滤的 URL.
默认值:None
$protocols
(数组)(可选)可以接收协议的数组,如果没有设置,则默认为:defaulting to http、https、ftp、ftps、mailto、news、irc、gopher、nntp、feed 和 telnet.
默认值:None
$_context
(字符串)(可选)如何返回 URL.
默认值:(字符串)display
返回值
(字符串)返回过滤后的链接。
例子
<?php echo esc_url( 'www.endskin.com' );//输出:http://www.endskin.com ?>
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此函数位于:wp-includes/formatting.php

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