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PHP mysqli_insert_id() Function

PHP MySQLi Reference PHP MySQLi Reference

Example

Assume that the Persons table has an auto-generated id field. Return the id used in the last query:

<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

mysqli_query($con,"INSERT INTO Persons (FirstName,LastName,Age)
VALUES ('Glenn','Quagmire',33)");

// Print auto-generated id
echo "New record has id: " . mysqli_insert_id($con);

mysqli_close($con);
?>

Definition and Usage

The mysqli_insert_id() function returns the id (generated with AUTO_INCREMENT) used in the last query.


Syntax

mysqli_insert_id(connection);

Parameter Description
connection Required. Specifies the MySQL connection to use

Technical Details

Return Value: Returns an integer with the value of the AUTO_INCREMENT field that was updated by the last query. If the number is > max integer value, it will return a string. Returns zero if there were no update or no AUTO_INCREMENT field
PHP Version: 5+


PHP MySQLi Reference PHP MySQLi Reference

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