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When retrieving data from a MySQL database via PHP, regardless of the field's original data type, it is always treated as a string in PHP.
To revert this behavior and obtain an integer representation of the field, employ the following techniques:
Explicit Casting:
$id = (int) $row['userid'];
intval() Function:
$id = intval($row['userid']);
By using either of these methods, you can convert the string representation of the integer field, $row['userid'], to an integer, $id.
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