Why is My MySQL Integer Insertion Showing 2147483647 Instead of the Correct Value?

Incorrect Integer Converted to 2147483647 During MySQL Insertion?

In the world of database management, it's not uncommon to encounter situations where the data you insert into a table doesn't match the value you intended. One recent issue raised concerns about the incorrect insertion of an integer value (2147483647) into a MySQL database.

Let's take a closer look at the situation. The user had a variable called $steam64 containing a valid integer value representing a Steam ID. When they used the following code snippet to insert this value into a MySQL database, they were perplexed to discover that a completely different integer (2147483647) was being inserted:

$sql_query = "INSERT INTO users_info (steam64) VALUES ('$steam64')";

This strange behavior led to confusion and frustration. Debugging efforts revealed that both var_dump($steam64) and echoing the variable returned the correct integer value, leaving the user wondering what had gone wrong.

The answer to this mystery lies in the data type of the steam64 column in the MySQL table. The default data type for integers in MySQL is INT, which has a maximum value of 2147483647. In this case, the value stored in $steam64 exceeded this maximum value, resulting in the truncation of the higher-order bits and the insertion of the largest representable integer (2147483647).

The solution to this issue is straightforward: simply change the data type of the steam64 column from INT to BIGINT. This data type can accommodate much larger integer values, ensuring that the value stored in $steam64 is correctly inserted into the database.

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