PHP mysqli errno() Function
Example - Object Oriented style
Return the last error code for the most recent function call, if any:
<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");
if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " .
$mysqli -> connect_error;
exit();
}
// Perform a query, check for error
if (!$mysqli -> query("INSERT INTO Persons (FirstName)
VALUES ('Glenn')")) {
echo("Errorcode: " . $mysqli -> errno);
}
$mysqli -> close();
?>
Look at example of procedural style at the bottom.
Definition and Usage
The errno / mysqli_errno() function returns the last error code for the most recent function call, if any.
Syntax
Object oriented style:
$mysqli -> errno
Procedural style:
mysqli_errno(connection)
Parameter Values
| Parameter | Description |
|---|---|
| connection | Required. Specifies the MySQL connection to use |
Technical Details
| Return Value: | Returns an error code value. Zero if no error occurred |
|---|---|
| PHP Version: | 5 |
Example - Procedural style
Return the last error code for the most recent function call, if any:
<?php
$con=mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}
// Perform a query, check for error
if (!mysqli_query($con,"INSERT INTO Persons (FirstName)
VALUES ('Glenn')")) {
echo("Errorcode: " . mysqli_errno($con));
}
mysqli_close($con);
?>
❮ PHP MySQLi Reference
