Stored procedure

[praba karan]

CREATE PROCEDURE `check`(tableName char(100), fieldName char(100), fieldValue int(10), out flag char(100))
BEGIN

SET @s= CONCAT('select count(*) from ',tableName,' where ',fieldName,' = ',fieldValue);
prepare stmt from @s;
execute stmt;


END

How to execute the above stored procedure in PHP?
thanks Advance