ibase_blob_echo
The ways mentioned above won't work with segmented blobs. To fix this, I use the following:
(btw, $result->MFOTO is an image in the database)
<?php
$result = ibase_fetch_object($result);
/*
ibase_blob_info array:
[0] bloblength(total)
[1] number of segments
[2] size of largest segment
[3] stream or segmented blob
[4] ??
*/
$blobinfo = ibase_blob_info($result->MFOTO);
$blobhandle = ibase_blob_open($result->MFOTO);
for($i = 0; $i < $blobinfo[1]; $i++){
$readsize = $blobinfo[2];
if($i == ($blobinfo[1] - 1)){
$readsize = $blobinfo[0] - (($blobinfo[1] - 1) * $blobinfo[2]);
}
$totalimage .= ibase_blob_get($blobhandle, $readsize);
}
ibase_blob_close($blobhandle);
echo $totalimage;
?>
This should do the trick ;)
ibase_blob_get
(PHP 5)
ibase_blob_get — Lit len octets de données dans un BLOB iBase ouvert
Description
string ibase_blob_get
( resource
$blob_handle
, int $len
)
ibase_blob_get() retourne au plus len
octets du BLOB blob_handle
qui a été ouvert en lecture par ibase_blob_open().
Note:
Il n'est pas possible de lire dans un BLOB ouvert en écriture par ibase_blob_create().
Liste de paramètres
-
blob_handle -
Une ressource blob, ouverte avec la fonction ibase_blob_open().
-
len -
La taille des données retournées.
Valeurs de retour
Retourne au plus, len octets du BLOB, ou
FALSE si une erreur survient.
Exemples
Exemple #1 Exemple avec ibase_blob_get()
<?php
$result = ibase_query("SELECT blob_value FROM table");
$data = ibase_fetch_object($result);
$blob_data = ibase_blob_info($data->BLOB_VALUE);
$blob_hndl = ibase_blob_open($data->BLOB_VALUE);
echo ibase_blob_get($blob_hndl, $blob_data[0]);
?>
Voir aussi
- ibase_blob_open() - Ouvre un BLOB iBase pour récupérer des parties de données
- ibase_blob_close() - Ferme un BLOB iBase
- ibase_blob_echo() - Affiche le contenu d'un BLOB iBase au navigateur
add a note
User Contributed Notes
ibase_blob_get - [3 notes]
trinite at trinite dot mine dot nu ¶
7 years ago
hamacker ¶
8 years ago
The first example is wrong, is missing ibase_blob_close() function.
The correct example is :
<?php
$sql = "SELECT blob_value FROM table";
$result = ibase_query($sql);
$data = ibase_fetch_object($result);
$blob_data = ibase_blob_info($data->BLOB_VALUE);
$blob_hndl = ibase_blob_open($data->BLOB_VALUE);
print ibase_blob_get($blob_hndl, $blob_data[0]);
// without close blob conection, php and ibase_blob_get() do not run.
ibase_blob_close($blob_hndl);
?>
sol at nospam dot example dot com ¶
10 years ago
I found examples like these:
$sql = "SELECT ID, CONTENTTYPE, BLOBSIZE, DATA,NAME ";
$sql.= " FROM OM_BLOB WHERE ID = 42";
$result = ibase_query($sql);
while ($row=ibase_fetch_object($result))
{
$blob_data = ibase_blob_info( $row->DATA);
$blob_hndl = ibase_blob_open($row->DATA);
$image = ibase_blob_get( $blob_hndl, $blob_data[0]);
}
but this won't work for large blobs.
One solution for big blobs is to retrieve them by chunks:
$sql = "SELECT ID, CONTENTTYPE, BLOBSIZE, DATA,NAME ";
$sql.= " FROM OM_BLOB WHERE ID = 42";
$result = ibase_query($sql);
while ($row=ibase_fetch_object($result))
{
$image = ibase_blob_get($blob_hndl,8192);
while($data = ibase_blob_get($blob_hndl, 8192)){
$image .= $data;
}
}