pg_escape_identifier(3) [php man page]

PG_ESCAPE_IDENTIFIER(3) 												   PG_ESCAPE_IDENTIFIER(3)

pg_escape_identifier - Escape a identifier for insertion into a text field

SYNOPSIS

       string pg_escape_identifier ([resource  $connection], string  $data)

DESCRIPTION

       pg_escape_identifier(3)	escapes  a  identifier (e.g. table, field names) for quering the database. It returns an escaped identifier string
       for PostgreSQL server. pg_escape_identifier(3) adds double quotes before and after data. Users should not add double quotes.  Use  of  this
       function  is  recommended  for  identifier  parameters  in  query. For SQL literals (i.e. parameters except bytea), pg_escape_literal(3) or
       pg_escape_string(3) muse be used. For bytea type fields, pg_escape_bytea(3) must be used instead.

       Note

	       This function has internal escape code and can also be used with PostgreSQL 8.4 or less.

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 to be escaped.

RETURN VALUES

	A string containing the escaped data.

EXAMPLES

       Example #1

	      pg_escape_identifier(3) example

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

		// Escape the table name data
		$escaped = pg_escape_identifier($table_name);

		// Select rows from $table_name
		pg_query("SELECT * FROM {$escaped};");
	      ?>

SEE ALSO

       pg_escape_literal(3), pg_escape_bytea(3), pg_escape_string(3).

PHP Documentation Group 												   PG_ESCAPE_IDENTIFIER(3)

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)