(PHP 4, PHP 5, PHP 7)
iptcembed — Embeds binary IPTC data into a JPEG image
Embeds binary IPTC data into a JPEG image.
iptcdataThe data to be written.
jpeg_file_namePath to the JPEG image.
spoolSpool flag. If the spool flag is less than 2 then the JPEG will be returned as a string. Otherwise the JPEG will be printed to STDOUT.
If spool is less than 2, the JPEG will be returned,
Im Fehlerfall wird FALSE zurückgegeben.. Otherwise returns TRUE on success
Im Fehlerfall wird FALSE zurückgegeben..
Beispiel #1 Embedding IPTC data into a JPEG
<?php
// iptc_make_tag() function by Thies C. Arntzen
function iptc_make_tag($rec, $data, $value)
{
$length = strlen($value);
$retval = chr(0x1C) . chr($rec) . chr($data);
if($length < 0x8000)
{
$retval .= chr($length >> 8) . chr($length & 0xFF);
}
else
{
$retval .= chr(0x80) .
chr(0x04) .
chr(($length >> 24) & 0xFF) .
chr(($length >> 16) & 0xFF) .
chr(($length >> 8) & 0xFF) .
chr($length & 0xFF);
}
return $retval . $value;
}
// Path to jpeg file
$path = './phplogo.jpg';
// Set the IPTC tags
$iptc = array(
'2#120' => 'Test image',
'2#116' => 'Copyright 2008-2009, The PHP Group'
);
// Convert the IPTC tags into binary code
$data = '';
foreach($iptc as $tag => $string)
{
$tag = substr($tag, 2);
$data .= iptc_make_tag(2, $tag, $string);
}
// Embed the IPTC data
$content = iptcembed($data, $path);
// Write the new image data out to the file.
$fp = fopen($path, "wb");
fwrite($fp, $content);
fclose($fp);
?>
Hinweis:
Diese Funktion benötigt die GD-Bibliothek nicht.