ingres_error

(PECL ingres >= 1.1.0)

ingres_error — Get a meaningful error message for the last error generated

说明

ingres_error ([ resource $link ] ) : string

Returns a string containing the last error, or NULL if no error has occurred.

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

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

参数

link

The connection link identifier

返回值

Returns a string containing the last error, or NULL if no error has occurred.

范例

Example #1 Get a message for the last error generated

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

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

$error_text = ingres_error();

if (!is_null($error_text)) {
   echo "An error occurred - " . $error_text;
}
?>

参见