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PHP manual


pg_execute

(PHP 5 >= 5.1.0)

pg_executeSends a request to execute a prepared statement with given parameters, and waits for the result.

Description

resource pg_execute ([ resource $connection ], 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.

Parameters

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.

Warning

Elements are converted to strings by calling this function.

Return Values

A query result resource on success or FALSE on failure.

Examples

Example #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"));

?>

See Also

  • pg_prepare() - Submits a request to create a prepared statement with the given parameters, and waits for completion.
  • pg_send_prepare() - Sends a request to create a prepared statement with the given parameters, without waiting for completion.
  • pg_query_params() - Submits a command to the server and waits for the result, with the ability to pass parameters separately from the SQL command text.