pg_lo_write

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

pg_lo_writeWrite to a large object

Опис

pg_lo_write(PgSql\Lob $lob, string $data, ?int $length = null): int|false

pg_lo_write() writes data into a large object at the current seek position.

To use the large object interface, it is necessary to enclose it within a transaction block.

Зауваження:

This function used to be called pg_lowrite().

Параметри

lob

Примірник PgSql\Lob, якого повертає pg_lo_open().

data

The data to be written to the large object. If length is an int and is less than the length of data, only length bytes will be written.

length

An optional maximum number of bytes to write. Must be greater than zero and no greater than the length of data. Defaults to the length of data.

Значення, що повертаються

The number of bytes written to the large object, or false on error.

Журнал змін

Версія Опис
8.1.0 Тепер параметр lob має бути примірником PgSql\Lob. Раніше очікувався resource.
8.0.0 length is now nullable.

Приклади

Приклад #1 pg_lo_write() example

<?php
$doc_oid
= 189762345;
$data = "This will overwrite the start of the large object.";
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$handle = pg_lo_open($database, $doc_oid, "w");
$data = pg_lo_write($handle, $data);
pg_query($database, "commit");
?>

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