Analysis of related PHP functions for escaping HTML and filtering links in WordPress, _PHP tutorial

The related PHP functions for escaping HTML and filtering links in WordPress use parsing,

esc_html() (escape Html)
The esc_html() function is used to escape Html code so that the Html code is not escaped.

Usage

esc_html( $text );

Parameters

$text

(String) (Required) The string to be escaped.

Default value: None

Return value

(String) Returns the escaped character.

Example

echo esc_html( '<a href="http://www.example.com/">A link</a>' );

The above code will output:

WordPress function: esc_html() (escape Html)

(In order to prevent the browser from transcoding, I directly took a screenshot)

More

This function is located at: wp-includes/formatting.php

esc_url() (filter link)
Many URLs will have some minor errors. Use the esc_url() function to block or correct these errors, and reject unsafe protocols.

What the esc_url() function does:

Defaulting to URLs that are not the following protocols: defaulting to http, https, ftp, ftps, mailto, news, irc, gopher, nntp, feed and telnet
Remove invalid and dangerous characters
Convert characters to HTML entity characters
How to use

esc_url( $url, $protocols, $_context );

Parameters

$url

(String) (required) URL to be filtered.

Default value: None

$protocols

(array) (optional) An array of protocols that can be received. If not set, the default is: defaulting to http, https, ftp, ftps, mailto, news, irc, gopher, nntp, feed and telnet.

Default value: None

$_context

(String) (optional) How to return the URL.

Default: (String) display

Return value

(String) Returns the filtered link.

Example

<&#63;php echo esc_url( 'www.endskin.com' );//输出：http://www.endskin.com &#63;>

More

This function is located at: wp-includes/formatting.php

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