CREATE FUNCTION fn_getCleanURLStr( str CHAR(255) ) RETURNS CHAR(255) BEGIN DECLARE i, len SMALLINT DEFAULT 1; DECLARE ret CHAR(255) DEFAULT ''; DECLARE c CHAR(1); SET len = CHAR_LENGTH( str ); REPEAT BEGIN SET c = MID( str, i, 1 ); IF c REGEXP '[[:alnum:]]' OR c = '-' THEN SET ret=CONCAT(ret,c); END IF; SET i = i + 1; END; UNTIL i > len END REPEAT; RETURN ret; END; Boxing Day Fun
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