On servers running PHP <= 5.4 which have magic_quotes_sybase enabled, the superglobals need to be magic-quoted before magic_quotes_sybase is subsequently disabled to avoid incorrect un-slashing. This must surely effect a miniscule number of servers, but so be it.

Fixes #19455
Props summerblue, kurtpayne, lucatume


git-svn-id: https://develop.svn.wordpress.org/trunk@35639 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/load.php

@@ -603,6 +603,9 @@ function wp_magic_quotes() {
 		$_COOKIE = stripslashes_deep( $_COOKIE );
 	}
 
+	// Turn off sybase quoting after stripslashes has run
+	@ini_set( 'magic_quotes_sybase', 0 );
+
 	// Escape with wpdb.
 	$_GET    = add_magic_quotes( $_GET    );
 	$_POST   = add_magic_quotes( $_POST   );