SunshinePHP Developer Conference 2015

La classe PDOStatement

(PHP 5 >= 5.1.0, PECL pdo >= 1.0.0)

Introduction

Représente une requête préparée et, une fois exécutée, le jeu de résultats associé.

Synopsis de la classe

PDOStatement implements Traversable {
/* Propriétés */
readonly string $queryString;
/* Méthodes */
public bool bindColumn ( mixed $column , mixed &$param [, int $type [, int $maxlen [, mixed $driverdata ]]] )
public bool bindParam ( mixed $parameter , mixed &$variable [, int $data_type = PDO::PARAM_STR [, int $length [, mixed $driver_options ]]] )
public bool bindValue ( mixed $parameter , mixed $value [, int $data_type = PDO::PARAM_STR ] )
public bool closeCursor ( void )
public int columnCount ( void )
public void debugDumpParams ( void )
public string errorCode ( void )
public array errorInfo ( void )
public bool execute ([ array $input_parameters ] )
public mixed fetch ([ int $fetch_style [, int $cursor_orientation = PDO::FETCH_ORI_NEXT [, int $cursor_offset = 0 ]]] )
public array fetchAll ([ int $fetch_style [, mixed $fetch_argument [, array $ctor_args = array() ]]] )
public string fetchColumn ([ int $column_number = 0 ] )
public mixed fetchObject ([ string $class_name = "stdClass" [, array $ctor_args ]] )
public mixed getAttribute ( int $attribute )
public array getColumnMeta ( int $column )
public bool nextRowset ( void )
public int rowCount ( void )
public bool setAttribute ( int $attribute , mixed $value )
public bool setFetchMode ( int $mode )
}

Propriétés

queryString

chaîne de caractères utilisée pour la requête.

Sommaire

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User Contributed Notes 2 notes

up
1
luis-m-cardoso at ext dot ptinovacao dot pt
1 year ago
Solved ;)

<?php

$host
= "yourHost";
$user = "yourUser";
$pass = "yourPass";
$db = "yourDB";

$cursor = "cr_123456";

try
{
 
$dbh = new PDO("pgsql:host=$host;port=5432;dbname=$db;user=$user;password=$pass");
  echo
"Connected<p>";
}
catch (
Exception $e)
{
  echo
"Unable to connect: " . $e->getMessage() ."<p>";
}

$dbh->beginTransaction();

$query = "SELECT yourFunction(0::smallint,'2013-08-01 00:00','2013-09-01 00:00',1::smallint,'$cursor')";

$dbh->query($query);

$query = "FETCH ALL IN \"$cursor\"";

echo
"begin data<p>";

foreach (
$dbh->query($query) as $row)
{
    echo
"$row[0] $row[1] $row[2] <br>";
}

echo
"end data";

?>
up
-7
rosko at zeta dot org dot au
4 years ago
There are many references around for returning a refcursor from a pgSQL function using pg_query. All essentially boil down to executing the following single statement (or some variation of it):

begin; select yourFunction(params...); fetch all in cursorname; commit;

In PDO, this doesn't work because PDO won't allow multiple statements submitted as a single statement (due to SQL injection detection). Instead, try this or similar:

<?php
$sql
= 'select yourFunction(params...)';
$db = new PDO('pgsql:dbname=yourDBname');
$db->beginTransaction();
$cmd = $db->prepare($sql);
if (
$cmd->execute()) {
  if (
$query = $db->query('fetch all in cursorname')) {
    ...
processing...
   
$query->closeCursor();
   
$cmd->closeCursor();
  }
}
$db->commit();
?>
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