id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
10041	like_escape() should escape backslashes too	miau_jp		"The like_escape() function doesn't escape backslashes.

source:trunk/wp-includes/formatting.php@11518#L2260
{{{
	return str_replace(array(""%"", ""_""), array(""\\%"", ""\\_""), $text);
}}}
should be ...
{{{
	return str_replace(array(""\\"", ""%"", ""_""), array(""\\\\"", ""\\%"", ""\\_""), $text);
}}}
or simply ...
{{{
	return addcslashes($text, '%_');
}}}

Considering multi-byte characters ...
{{{
	if (function_exists('mb_ereg_replace')) {
		$text = mb_ereg_replace('\\\\', '\\\\', $text);
		$text = mb_ereg_replace('%', '\\%', $text);
		$text = mb_ereg_replace('_', '\\_', $text);
		return $text;
	} else {
		return addcslashes($text, '%_');
	}
}}}"	defect (bug)	reopened	high	Future Release	Formatting	2.8	normal		has-patch has-unit-tests 3.2-early