pg_put_line

(PHP 4 >= 4.0.3, PHP 5)

pg_put_lineSend a NULL-terminated string to PostgreSQL backend

Description

bool pg_put_line ([ resource $connection ], string $data )

pg_put_line() sends a NULL-terminated string to the PostgreSQL backend server. This is needed in conjunction with PostgreSQL's COPY FROM command.

COPY is a high-speed data loading interface supported by PostgreSQL. Data is passed in without being parsed, and in a single transaction.

An alternative to using raw pg_put_line() commands is to use pg_copy_from(). This is a far simpler interface.

Note:

The application must explicitly send the two characters "\." on the last line to indicate to the backend that it has finished sending its data, before issuing pg_end_copy().

Warning

Use of the pg_put_line() causes most large object operations, including pg_lo_read() and pg_lo_tell(), to subsequently fail. You can use pg_copy_from() and pg_copy_to() instead.

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().

data

A line of text to be sent directly to the PostgreSQL backend. A NULL terminator is added automatically.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 pg_put_line() example

<?php 
  $conn 
pg_pconnect("dbname=foo");
  
pg_query($conn"create table bar (a int4, b char(16), d float8)");
  
pg_query($conn"copy bar from stdin");
  
pg_put_line($conn"3\thello world\t4.5\n");
  
pg_put_line($conn"4\tgoodbye world\t7.11\n");
  
pg_put_line($conn"\\.\n");
  
pg_end_copy($conn);
?>

See Also

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User Contributed Notes 1 note

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kurt at nospam dot milliganshome dot net
10 years ago
This is the function you need if you are running into the infamous "must be superuser to COPY to or from a file" error from postgres.
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