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Alex Rivera
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function save($gmt, $name, $address, $phone, $remark) { $query= "INSERT INTO `user` (`gmt`, `name`, `address`, `phone`, `remark`) VALUES ('$gmt', '$name', '$address', '$phone', '$remark')"; mysql_query($query); } Here, address, phone, and remark can be NULL . I need it to save NULL whenever the variable is set to NULL and the column is nullable, instead of inserting an empty string. How can I insert NULL value into the database using PHP?
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