PHP. Руководство по PHP. 2005

pg_send_prepare

(PHP 5)pg_send_prepare -- Sends a request to create a prepared statement with the given parameters, without waiting for completion.

Описание

bool pg_send_prepare (resource connection, string stmtname, string query)

Sends a request to create a prepared statement with the given parameters,

without waiting for completion.

This is an asynchronous version of pg_prepare(): it returns TRUE if it was able to

dispatch the request, and FALSE if not. After a successful call, call

pg_get_result() to determine whether the server successfully created the

prepared statement. The function's parameters are handled identically to

pg_prepare(). Like pg_prepare(), it will not work

on pre-7.4 versions of PostgreSQL.

Список параметров

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().

stmtname

The name to give the prepared statement. Must be unique per-connection. If

"" is specified, then an unnamed statement is created, overwriting any

previously defined unnamed statement.

query

The parameterised 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.

Возвращаемые значения

Returns TRUE on success, FALSE on failure. Use pg_get_result()

to determine the query result.

Примеры

Пример 1. Using pg_send_prepare()


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

// Prepare a query for execution
if (!pg_connection_busy($dbconn)){
pg_send_prepare($dbconn, "my_query", 'SELECT * FROM shops WHERE name = $1');
$res1 = pg_get_result($dbconn);
}

// Execute the prepared query. Note that it is not necessary to escape
// the string "Joe's Widgets" in any way
if (!pg_connection_busy($dbconn)){
pg_send_execute($dbconn, "my_query", array("Joe's Widgets"));
$res2 = pg_get_result($dbconn);
}

// Execute the same prepared query, this time with a different parameter
if (!pg_connection_busy($dbconn)){
pg_send_execute($dbconn, "my_query", array("Clothes Clothes Clothes"));
$res3 = pg_get_result($dbconn);
}

?>

Смотрите также

pg_send_query_params()

pg_send_execute

pg_send_query_params

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

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