prevent mail_criteria from munging the variable passed in containing the

query - just had to add a cpystr(). if this isn't the right fix, let me
know, but it does work.

ext/imap/php_imap.c

@@ -3411,7 +3411,7 @@ PHP_FUNCTION(imap_search)
 	}
 	
 	IMAPG(imap_messages) = NIL;
-	mail_search_full(imap_le_struct->imap_stream, NIL, mail_criteria(Z_STRVAL_PP(criteria)), flags);
+	mail_search_full(imap_le_struct->imap_stream, NIL, mail_criteria(cpystr(Z_STRVAL_PP(criteria))), flags);
 	if (IMAPG(imap_messages) == NIL) {
 		RETURN_FALSE;
 	}