PHP mysqli_connect_errno() Function

Object oriented style

int $mysqli->connect_errno;

Procedural style

int mysqli_connect_errno ( void )

Returns the last error code number from the last call to mysqli_connect().

Client error message numbers are listed in the MySQL errmsg.h header file, server error message numbers are listed in mysqld_error.h. In the MySQL source distribution you can find a complete list of error messages and error numbers in the file Docs/mysqld_error.txt.

The mysqli_connect_errno() function returns the error code from the last connection error, if any.

Example -

Object oriented style

Example -

Procedural style

The above examples will output:

Connect Error: 1045

Return Values

An error code value for the last call to mysqli_connect(), if it failed. zero means no error occurred.