Last updated: Fri, 24 Sep 2010

pg_copy_from

(PHP 4 >= 4.2.0, PHP 5)

pg_copy_from — Insert records into a table from an array

Description

bool pg_copy_from ( resource $connection , string $table_name , array $rows [, string $delimiter [, string $null_as ]] )

pg_copy_from() inserts records into a table from rows. It issues a COPY FROM SQL command internally to insert records.

Parameters

connection: PostgreSQL database connection resource.
table_name: Name of the table into which to copy the rows.
rows: An array of data to be copied into table_name. Each value in rows becomes a row in table_name. Each value in rows should be a delimited string of the values to insert into each field. Values should be linefeed terminated.
delimiter: The token that separates values for each field in each element of rows. Default is TAB.
null_as: How SQL NULL values are represented in the rows. Default is \N ("\\N").

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 pg_copy_from() example


<?php
   $db = pg_connect("dbname=publisher") or die("Could not connect");
   
   $rows = pg_copy_to($db, $table_name);
   
   pg_query($db, "DELETE FROM $table_name");
   
   pg_copy_from($db, $table_name, $rows);
?>


This will not look in other schema's, only the schema's in your search path. You can temporarily change this behavior with the following code:





<?php


pg_query($conn, "SET search_path TO myschema;");





$copy_from = pg_copy_from($conn, 'tablename', $filetoarray, ",");


    


if ( !$copy_from )


{


    echo pg_last_error($conn);


        


    exit;


}





pg_query("RESET search_path;");


?>

Anonymous
11-Jun-2009 12:08


see also: pg_put_line for a solution that does not require buffering of all the data to be copied,

kapouer_php at melix dot org
26-Aug-2007 11:24


pg syntax is :

COPY test (cola, colb, colc) FROM stdin;

...



this function doesn't let you in which order the columns are !

vlad at php dot net
19-Mar-2003 10:38


By default NULL values are a backslash followed with capital N ("\\N"). 



Also, you can't insert entries with OIDs (I've added it to my TODO list though)

carl at thep.lu.se
10-Sep-2002 12:06


Something needs to be said about the format of the array.

Judging by what I've seen, it's pretty much what you get

from loading a tab-separated file with file(). That is, the

lines are linefeed-terminated and there's no need to have

an extra line with "\.". On the other hand, when I try using this

command the connection to the server ends up in some odd

state and is then lost:

PHP Warning:  U�S�o() query failed: server closed the connection unexpectedly



I think it might be safer to use the lower-level function

pg_put_line() for now.

16-Jul-2002 08:10


For starters, you can check the first line of every function document. It tells the minimum versions of PHP that you need in order to use the function.

add a note

pg_copy_to

pg_convert