wp_iso_descrambler( string $string )

Convert to ASCII from email subjects.

Parameters

$string

(Required) Subject line

Return

(string) Converted string to ASCII

Source

File: wp-includes/formatting.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 );
	}
}

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Changelog

Changelog
Version Description
WP-1.2.0 Introduced.