Function to take a large object size:
<?php
function pg_lo_size ($lo) {
$pos = pg_lo_tell ($lo);
pg_lo_seek ($lo, 0, PGSQL_SEEK_END);
$size = pg_lo_tell ($lo);
pg_lo_seek ($lo, $pos, PGSQL_SEEK_SET);
return $size;
}
?>
pg_lo_tell
(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
pg_lo_tell — Returns current seek position a of large object
Açıklama
pg_lo_tell() returns the current position (offset from the beginning) of a large object.
To use the large object interface, it is necessary to enclose it within a transaction block.
Dönen Değerler
The current seek offset (in number of bytes) from the beginning of the large object. If there is an error, the return value is negative.
Sürüm Bilgisi
| Sürüm: | Açıklama |
|---|---|
| 8.1.0 |
lob bağımsız değişkeni artık
PgSql\Lob nesnesi kabul ediyor, evvelce bir
özkaynak kabul ederdi.
|
Örnekler
Örnek 1 pg_lo_tell() example
<?php
$doc_oid = 189762345;
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$handle = pg_lo_open($database, $doc_oid, "r");
// Skip first 50000 bytes
pg_lo_seek($handle, 50000, PGSQL_SEEK_SET);
// See how far we've skipped
$offset = pg_lo_tell($handle);
echo "Seek position is: $offset";
pg_query($database, "commit");
?>Yukarıdaki örneğin çıktısı:
Seek position is: 50000
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