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pg_last_error

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

pg_last_error — Get the last error message string of a connection

Description

pg_last_error(?PgSql\Connection $connection = null): string

pg_last_error() returns the last error message for a given connection.

Error messages may be overwritten by internal PostgreSQL (libpq) function calls. It may not return an appropriate error message if multiple errors occur inside a PostgreSQL module function.

Use pg_result_error(), pg_result_error_field(), pg_result_status() and pg_connection_status() for better error handling.

Note:

This function used to be called pg_errormessage().

Parameters

connection

An PgSql\Connection instance. When connection is null, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().

Warning

As of PHP 8.1.0, using the default connection is deprecated.

Return Values

A string containing the last error message on the given connection.

Changelog

Version Description
8.1.0 The connection parameter expects an PgSql\Connection instance now; previously, a resource was expected.
8.0.0 connection is now nullable.

Examples

Example #1 pg_last_error() example

<?php
$dbconn = pg_connect("dbname=publisher") or die("Could not connect");

// Query that fails
$res = pg_query($dbconn, "select * from doesnotexist");

echo pg_last_error($dbconn);
?>

See Also