Snippet: Add Mailto to all the e-mail addresses

Add following snippet to “functions.php”

Snippet

add_filter('the_content','add_mailto',10,1)
function add_mailto($content) {
    $pattern = "/([a-z0-9][_a-z0-9.-]+@([0-9a-z][_0-9a-z-]+\.)+[a-z]{2,6})/i";
    $replace = "\\1";
    $text = preg_replace($pattern, $replace, $content);
    return htmlspecialchars($content);
}

Result

All the email address in post content will be changed to link with “mailto” functionality. This is not a good idea because of obvious spamming reason but it might useful for some people.

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