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Augšuplādēt gif bildes


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Kā droši atļaut augšupielādēt gif bildes lietotājiem. Zinu ka jpg un png bildes, lai uzlabotu drošību pēc augšupielādes pārveido ar imagecopyresampled, bet ko darīt ar gif bildēm? Varbūt kādam ir neliels scripts, ar kuru var augšupielādēt gif bildes?

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Mans kods apmēram šāds, bet uploadojot gifu viņš ir nekustīgs.

$source_image = imagecreatefromgif($file['tmp_name']);
$dest_image = imagecreatetruecolor($dest_imagex, $dest_imagey);
imagecopyresampled($dest_image, $source_image, 0, 0, 0, 0, $dest_imagex, $dest_imagey, $source_imagex, $source_imagey);
$image_name = $name.'.gif';
$newname = "images/".$folders."/".$image_name;
imagegif($dest_image, $newname);

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