pg_close

(PHP 4, PHP 5, PHP 7, PHP 8)

pg_close — Closes a PostgreSQL connection

Açıklama

pg_close(?PgSql\Connection $connection = null): true

pg_close() closes the non-persistent connection to a PostgreSQL database associated with the given connection instance.

Bilginize:
Using pg_close() is not usually necessary, as non-persistent open connections are automatically closed at the end of the script.

If there is open PgSql\Lob instance on the connection, do not close the connection before closing all PgSql\Lob instances.

Bağımsız Değişkenler

connection

PgSql\Connection nesnesi. bağlantı null ise, öntanımlı bağlantı kullanılır.Öntanımlı bağlantı pg_connect() veya pg_pconnect() işleviyle kurulmuş son bağlantıdır.

Uyarı

PHP 8.1.0 ve sonrasında, öntanımlı bağlantının kullanımı önerilmemektedir.

Dönen Değerler

Daima true döndürür.

Sürüm Bilgisi

Sürüm:	Açıklama
8.2.0	Dönüş türü artık `true`;evvelce, bool idi.
8.1.0	`bağlantı` bağımsız değişkeni artık PgSql\Connection nesnesi kabul ediyor, evvelce bir özkaynak kabul ederdi.
8.0.0	`connection` is now nullable.

Örnekler

Örnek 1 pg_close() example

<?php
$dbconn = pg_connect("host=localhost port=5432 dbname=mary")
   or die("Could not connect");
echo "Connected successfully";
pg_close($dbconn);
?>

Yukarıdaki örneğin çıktısı:

Connected successfully

Ayrıca Bakınız

pg_connect() - Open a PostgreSQL connection

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User Contributed Notes 2 notes

down

amays ¶

19 years ago

pg_close(...) will not technically close a persistent connection but instead returns it back to the connection pool thus giving you the desired effect of having the connection closed within your script.

http://www.sitepoint.com/article/accessing-postgresql-php/3

best wishes to all.

down

mark at redbrick dot dcu dot ie ¶

21 years ago

This function closes the current database connection specified by a handle returned from a pg_connect() call.

<?php
    $pgsql_conn = pg_connect("dbname=mark host=localhost");

    if ($pgsql_conn) {
        print "Successfully connected to: " . pg_host($pgsql_conn) . "<br/>\n";
    } else {
        print pg_last_error($pgsql_conn);
        exit;
    }

    // Do database stuff here.

    if(!pg_close($pgsql_conn)) {
        print "Failed to close connection to " . pg_host($pgsql_conn) . ": " .
       pg_last_error($pgsql_conn) . "<br/>\n";
    } else {
        print "Successfully disconnected from database";
    }
?>

Of course you normally wouldn't print a message.  

Regards, --mark

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