pg_send_query(3) [php man page]

PG_SEND_QUERY(3)														  PG_SEND_QUERY(3)

pg_send_query - Sends asynchronous query

SYNOPSIS

       bool pg_send_query (resource  $connection, string  $query)

DESCRIPTION

       pg_send_query(3)  sends	a  query or queries asynchronously to the $connection. Unlike pg_query(3), it can send multiple queries at once to
       PostgreSQL and get the results one by one using pg_get_result(3).

	Script execution is not blocked while the queries are executing. Use pg_connection_busy(3) to check if the connection is  busy	(i.e.  the
       query is executing). Queries may be cancelled using pg_cancel_query(3).

	Although  the user can send multiple queries at once, multiple queries cannot be sent over a busy connection. If a query is sent while the
       connection is busy, it waits until the last query is finished and discards all its results.

PARAMETERS

	      o $connection
		- PostgreSQL database connection resource.

	      o $query
		- The SQL statement or statements to be executed.  Data inside the query should be properly escaped.

RETURN VALUES

       Returns TRUE on success or FALSE on failure.

	Use pg_get_result(3) to determine the query result.

EXAMPLES

       Example #1

	      pg_send_query(3) example

	      <?php
		$dbconn = pg_connect("dbname=publisher") or die("Could not connect");

		if (!pg_connection_busy($dbconn)) {
		    pg_send_query($dbconn, "select * from authors; select count(*) from authors;");
		}

		$res1 = pg_get_result($dbconn);
		echo "First call to pg_get_result(): $res1
";
		$rows1 = pg_num_rows($res1);
		echo "$res1 has $rows1 records

";

		$res2 = pg_get_result($dbconn);
		echo "Second call to pg_get_result(): $res2
";
		$rows2 = pg_num_rows($res2);
		echo "$res2 has $rows2 records
";
	      ?>

	      The above example will output:

	      First call to pg_get_result(): Resource id #3
	      Resource id #3 has 3 records

	      Second call to pg_get_result(): Resource id #4
	      Resource id #4 has 1 records

SEE ALSO

       pg_query(3), pg_cancel_query(3), pg_get_result(3), pg_connection_busy(3).

PHP Documentation Group 													  PG_SEND_QUERY(3)

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PG_SEND_QUERY_PARAMS(3) 												   PG_SEND_QUERY_PARAMS(3)

pg_send_query_params - Submits a command and separate parameters to the server without waiting for the result(s).

SYNOPSIS

       bool pg_send_query_params (resource  $connection, string  $query, array	$params)

DESCRIPTION

	Submits a command and separate parameters to the server without waiting for the result(s).

	This  is  equivalent  to  pg_send_query(3) except that query parameters can be specified separately from the $query string. The function's
       parameters are handled identically to pg_query_params(3). Like pg_query_params(3), it will not work on pre-7.4 PostgreSQL connections,  and
       it allows only one command in the query string.

PARAMETERS

	      o $connection
		- PostgreSQL database connection resource.

	      o $query
		-  The	parameterized  SQL  statement. Must contain only a single statement. (multiple statements separated by semi-colons are not
		allowed.) If any parameters are used, they are referred to as $1, $2, etc.

	      o $params
		- An array of parameter values to substitute for the $1, $2, etc. placeholders in the original prepared query string.  The  number
		of elements in the array must match the number of placeholders.

RETURN VALUES

       Returns TRUE on success or FALSE on failure.

	Use pg_get_result(3) to determine the query result.

EXAMPLES

       Example #1

	      Using pg_send_query_params(3)

	      <?php
		$dbconn = pg_connect("dbname=publisher") or die("Could not connect");

		// Using parameters.  Note that it is not necessary to quote or escape
		// the parameter.
		pg_send_query_params($dbconn, 'select count(*) from authors where city = $1', array('Perth'));

		// Compare against basic pg_send_query usage
		$str = pg_escape_string('Perth');
		pg_send_query($dbconn, "select count(*) from authors where city = '${str}'");
	      ?>

SEE ALSO

       pg_send_query(3).

PHP Documentation Group 												   PG_SEND_QUERY_PARAMS(3)

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pg_send_query(3) [php man page]

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