How Do I Retrieve the Last Inserted ID in MySQL Using PHP?

Retrieve Last Inserted ID from MySQL in PHP

To obtain the ID of the last inserted record in a MySQL table, it is essential to consider the specific PHP database extension you are using. This solution explores methods for three common extensions: PDO, Mysqli, and Mysql.

Using PDO or Mysqli

If you are utilizing PDO or Mysqli, the process is straightforward:

• PDO: Leverage the PDO::lastInsertId() method to retrieve the ID.
• Mysqli: Utilize the $insert_id property of the Mysqli object.

Using Mysql

While using the Mysql extension is not recommended due todeprecation, it can be achieved by employing the mysql_insert_id() function.

Is SELECT MAX(id) FROM Table an Alternative?

No, SELECT MAX(id) FROM table is not an appropriate method for obtaining the last inserted ID. It returns the maximum id value in the table, which may not always correspond to the last inserted record.

Additional Considerations

• For a more comprehensive and detailed explanation on PDO and MySQLi, consider referring to the following resources:

  • [PDO Tutorial](https://www.tutorialrepublic.com/php-tutorial/php-pdo-tutorial.php)
  • [Mysqli Tutorial](https://www.w3schools.com/php/php_mysqli_intro.asp)
• If you encounter any challenges or require further clarification, don't hesitate to seek support from PHP online communities and forums.

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