PHP:pg_send_execute()的用法_PostgreSQL函数

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pg_send_execute

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(PHP 5 >= 5.1.0)

pg_send_execute — Sends a request to execute a prepared statement with given parameters, without waiting for the result(s).

说明 bool pg_send_execute ( resource $connection , string $stmtname , array $params )

Sends a request to execute a prepared statement with given parameters, without waiting for the result(s).

This is similar to pg_send_query_params(), but the command to be executed is specified by naming a previously-prepared statement, instead of giving a query string. The function&#;s parameters are handled identically to pg_execute(). Like pg_execute(), it will not work on pre-7.4 versions of PostgreSQL.

参数

connection PHP:pg_send_execute()的用法_PostgreSQL函数

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.

返回值

Returns TRUE on success, FALSE on failure. Use pg_get_result() to determine the query result.

范例

Example #1 Using pg_send_execute()

<?php$dbconn=pg_connect("dbname=publisher")ordie("Couldnotconnect");//Prepareaqueryforexecutionif(!pg_connection_busy($dbconn)){pg_send_prepare($dbconn,"my_query",'SELECT*FROMshopsWHEREname=$1');$res1=pg_get_result($dbconn);}//Executethepreparedquery.Notethatitisnotnecessarytoescape//thestring"Joe'sWidgets"inanywayif(!pg_connection_busy($dbconn)){pg_send_execute($dbconn,"my_query",array("Joe'sWidgets"));$res2=pg_get_result($dbconn);}//Executethesamepreparedquery,thistimewithadifferentparameterif(!pg_connection_busy($dbconn)){pg_send_execute($dbconn,"my_query",array("ClothesClothesClothes"));$res3=pg_get_result($dbconn);}?>

参见

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

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