PG_UPDATE(3)															      PG_UPDATE(3)

pg_update - Update table

SYNOPSIS

       mixed pg_update (resource  $connection, string  $table_name, array  $data, array  $condition, [int  $options = PGSQL_DML_EXEC])

DESCRIPTION

       pg_update(3)  updates  records  that  matches condition with data. If options is specified, pg_convert(3) is applied to data with specified
       options.

PARAMETERS

	      o $connection
		- PostgreSQL database connection resource.

	      o $table_name
		- Name of the table into which to update rows.

	      o $data
		- An array whose keys are field names in the table $table_name, and whose values are what matched rows are to be updated to.

	      o $condition
		- An array whose keys are field names in the table $table_name, and whose values are the conditions that a row	must  meet  to	be
		updated.

	      o $options
		-  Any	number	of PGSQL_CONV_FORCE_NULL, PGSQL_DML_NO_CONV, PGSQL_DML_ESCAPE, PGSQL_DML_EXEC, PGSQL_DML_ASYNC or PGSQL_DML_STRING
		combined. If PGSQL_DML_STRING is part of the $options then query string is returned. When PGSQL_DML_NO_CONV or PGSQL_DML_ESCAPE is
		set, it does not call pg_convert(3) internally.

RETURN VALUES

	Returns TRUE on success or FALSE on failure. Returns string if PGSQL_DML_STRING is passed via $options.

EXAMPLES

       Example #1

	      pg_update(3) example

	      <?php
		$db = pg_connect('dbname=foo');
		$data = array('field1'=>'AA', 'field2'=>'BB');

		// This is safe, since $_POST is converted automatically
		$res = pg_update($db, 'post_log', $_POST, $data);
		if ($res) {
		    echo "Data is updated: $res
";
		} else {
		    echo "User must have sent wrong inputs
";
		}
	      ?>

CHANGELOG

       +-------------+---------------------------------------------------+
       |  Version    |							 |
       |	     |							 |
       |	     |			  Description			 |
       |	     |							 |
       +-------------+---------------------------------------------------+
       |   5.6.0     |							 |
       |	     |							 |
       |	     |	No  longer  experimental. Added PGSQL_DML_ESCAPE |
       |	     | constant, TRUE/ FALSE and NULL data type support. |
       |	     |							 |
       |5.5.3/5.4.19 |							 |
       |	     |							 |
       |	     |	Direct SQL injection to $table_name and Indirect |
       |	     | SQL injection to identifiers are fixed.		 |
       |	     |							 |
       +-------------+---------------------------------------------------+
SEE ALSO

       pg_convert(3).

PHP Documentation Group 													      PG_UPDATE(3)