Php/docs/mysqli.error
mysqli::$error
mysqli_error
(PHP 5, PHP 7)
mysqli::$error -- mysqli_error — Returns a string description of the last error
Description
Object oriented style
string $mysqli->error;
Procedural style
mysqli_error
( mysqli $link
) : string
Returns the last error message for the most recent MySQLi function call that can succeed or fail.
Parameters
link- Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()
Return Values
A string that describes the error. An empty string if no error occurred.
Examples
Example #1 $mysqli->error example
Object oriented style
<?php$mysqli = new mysqli("localhost", "my_user", "my_password", "world");/* check connection */if ($mysqli->connect_errno) { printf("Connect failed: %s\n", $mysqli->connect_error); exit();}if (!$mysqli->query("SET a=1")) { printf("Error message: %s\n", $mysqli->error);}/* close connection */$mysqli->close();?>
Procedural style
<?php$link = mysqli_connect("localhost", "my_user", "my_password", "world");/* check connection */if (mysqli_connect_errno()) { printf("Connect failed: %s\n", mysqli_connect_error()); exit();}if (!mysqli_query($link, "SET a=1")) { printf("Error message: %s\n", mysqli_error($link));}/* close connection */mysqli_close($link);?>
The above examples will output:
Error message: Unknown system variable 'a'
See Also
- mysqli_connect_errno() - Returns the error code from last connect call
- mysqli_connect_error() - Returns a string description of the last connect error
- mysqli_errno() - Returns the error code for the most recent function call
- mysqli_sqlstate() - Returns the SQLSTATE error from previous MySQL operation
