pg_send_execute

(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: 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" ) 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 );
  }
  
 ?>

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.