pg_last_error

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

Get the last error message string of a connection

string pg_last_error ([ resource $connection ] )

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

PostgreSQL database connection resource. When connection is not present, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().

Returns:

A string containing the last error message on the given connection, or FALSE on error.

Examples:

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);
?>