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.
<?php
ingres_connect($database, $user, $password);
ingres_query("select * from table");
$error_text = ingres_error();
if ( is_null($error_text) ) {
echo "An error occured - " . $error_text;
}
?>See also ingres_errno() and ingres_errsqlstate().