# ingres_errno

(PECL ingres >= 1.1.0)

ingres_errno — Get the last Ingres error number generated

### 说明

ingres_errno ([ resource `$link` ] ) : int

Returns an integer containing the last error number. If no error was reported 0 is returned.

If a `link` resource is passed to ingres_errno() it returns the last error recorded for the link. If no link is passed, then ingres_errno() returns the last error reported using the default link.

The function, ingres_errno(), should always be called after executing a database query. Calling another function before ingres_errno() is called will reset or change any error code from the last Ingres function call.

### 参数

`link`

  The connection link identifier

### 返回值

Returns an integer containing the last error number. If no error was reported, 0 is returned.

### 范例

Example #1 Get the last Ingres error number generated

    <?php
    $link = ingres_connect($database, $user, $password);

    $result = ingres_query($link, "select * from table");

    $error_code = ingres_errno($link);

    if ( $error_code != 0 ) {
       echo "An error occurred - " . $error_code;
    }
    ?>

### 参见

- ingres_error() - Get a meaningful error message for the last error generated
- ingres_errsqlstate() - Get the last SQLSTATE error code generated
- ingres_next_error() - Get the next Ingres error