php man page for pg_escape_bytea

PG_ESCAPE_BYTEA(3)														PG_ESCAPE_BYTEA(3)

pg_escape_bytea - Escape a string for insertion into a bytea field

SYNOPSIS
       string pg_escape_bytea ([resource  $connection], string	$data)

DESCRIPTION
       pg_escape_bytea(3) escapes string for bytea datatype. It returns escaped string.

       Note

	       When  you  SELECT  a  bytea type, PostgreSQL returns octal byte values prefixed with '' (e.g. 32). Users are supposed to convert
	      back to binary format manually.

	       This function requires PostgreSQL 7.2 or later. With PostgreSQL 7.2.0 and 7.2.1, bytea values must be cast when you  enable  multi-
	      byte support. i.e.  INSERT INTO test_table (image) VALUES ('$image_escaped'::bytea); PostgreSQL 7.2.2 or later does not need a cast.
	      The exception is when the client and backend character encoding does not match, and there may be multi-byte stream error. User  must
	      then cast to bytea to avoid this error.

PARAMETERS
	      o $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(3) or pg_pconnect(3).

	      o $data
		- A string containing text or binary data to be inserted into a bytea column.

RETURN VALUES
	A string containing the escaped data.

CHANGELOG
       +--------+-------------------+
       |Version |		    |
       |	|		    |
       |	|    Description    |
       |	|		    |
       +--------+-------------------+
       | 5.2.0	|		    |
       |	|		    |
       |	| $connection added |
       |	|		    |
       +--------+-------------------+
EXAMPLES
       Example #1

	      pg_escape_bytea(3) example

	      <?php
		// Connect to the database
		$dbconn = pg_connect('dbname=foo');

		// Read in a binary file
		$data = file_get_contents('image1.jpg');

		// Escape the binary data
		$escaped = pg_escape_bytea($data);

		// Insert it into the database
		pg_query("INSERT INTO gallery (name, data) VALUES ('Pine trees', '{$escaped}')");
	      ?>

SEE ALSO
       pg_unescape_bytea(3), pg_escape_string(3).

PHP Documentation Group 													PG_ESCAPE_BYTEA(3)