antispambot() WP 0.71

Converts email addresses characters to HTML entities to stop spam-bots from parsing your email.

No Hooks.

Return

String. Converted email address.

Usage

antispambot( $email_address, $hex_encoding );

$email_address(string) (required)

Email address.

$hex_encoding(int)

Set to 1 to enable hex encoding.

0 - encodes only with integers ({).
1 - encodes to hex (&x7B;).
Default: 0

Examples

#1 Encode email

echo antispambot('mymail@example.com');

// In the code: &#109;&#121;&#109;a&#105;&#108;&#064;&#103;&#109;&#097;i&#108;.&#099;&#111;&#109;

// On the screen: mymail@example.com

Changelog

Since 0.71

Introduced.

Code of `antispambot() antispambot` ^{WP 5.5.1}

wp-includes/formatting.php

<?php
function antispambot( $email_address, $hex_encoding = 0 ) {
	$email_no_spam_address = '';
	for ( $i = 0, $len = strlen( $email_address ); $i < $len; $i++ ) {
		$j = rand( 0, 1 + $hex_encoding );
		if ( 0 == $j ) {
			$email_no_spam_address .= '&#' . ord( $email_address[ $i ] ) . ';';
		} elseif ( 1 == $j ) {
			$email_no_spam_address .= $email_address[ $i ];
		} elseif ( 2 == $j ) {
			$email_no_spam_address .= '%' . zeroise( dechex( ord( $email_address[ $i ] ) ), 2 );
		}
	}

	return str_replace( '@', '&#64;', $email_no_spam_address );
}