pg_send_execute()

(PHP 5 >= 5.1.0, PHP 7)

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

说明

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

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$connectionis 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 aPREPARESQL 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