WordPress at a glance
function is not described

wp_iso_descrambler() WP 1.2.0

Convert to ASCII from email subjects.

No Hooks.

Return

String. Converted string to ASCII

Usage

wp_iso_descrambler( $string );
$string(string) (required)
Subject line

Code of wp iso descrambler: wp-includes/formatting.php VER 5.1.1

<?php
function wp_iso_descrambler( $string ) {
	/* this may only work with iso-8859-1, I'm afraid */
	if ( ! preg_match( '#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches ) ) {
		return $string;
	} else {
		$subject = str_replace( '_', ' ', $matches[2] );
		return preg_replace_callback( '#\=([0-9a-f]{2})#i', '_wp_iso_convert', $subject );
	}
}