PHP. Руководство по PHP. 2005

pg_execute

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pg_execute

(PHP 5)pg_execute -- Sends a request to execute a prepared statement with given parameters, and waits for the result.

Описание

resource pg_execute (resource connection, string stmtname, array params)

resource pg_execute (string stmtname, array params)

Sends a request to execute a prepared statement with given parameters, and

waits for the result.

pg_execute() is like pg_query_params(),

but the command to be executed is

specified by naming a previously-prepared statement, instead of giving a

query string. This feature allows commands that will be used repeatedly to

be parsed and planned just once, rather than each time they are executed.

The statement must have been prepared previously in the current session.

pg_execute() is supported only against PostgreSQL 7.4 or

higher connections; it will fail when using earlier versions.

The parameters are identical to pg_query_params(), except that the name of a

prepared statement is given instead of a query string.

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 of the prepared statement to execute. if

"" is specified, then the unnamed statement is executed. The name must have

been previously prepared using pg_prepare(),

pg_send_prepare() or a PREPARE SQL

command.

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.

Возвращаемые значения

A query result resource on success, or FALSE on failure.

Примеры

Пример 1. Using pg_execute()


<?php
// Connect to a database named "mary"
$dbconn = pg_connect("dbname=mary");

// Prepare a query for execution
$result = pg_prepare($dbconn, "my_query", 'SELECT * FROM shops WHERE name = $1');

// Execute the prepared query. Note that it is not necessary to escape
// the string "Joe's Widgets" in any way
$result = pg_execute($dbconn, "my_query", array("Joe's Widgets"));

// Execute the same prepared query, this time with a different parameter
$result = pg_execute($dbconn, "my_query", array("Clothes Clothes Clothes"));

?>

Смотрите также

pg_escape_string

pg_fetch_all_columns

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

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