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imagecreatefromgif

(PHP 4, PHP 5)

imagecreatefromgif — Create a new image from file or URL

Описание

resource imagecreatefromgif ( string $filename )

imagecreatefromgif() returns an image identifier representing the image obtained from the given filename.

To ease debugging the following example will produce an error GIF:

Example#1 Example to handle an error during creation

<?php
function LoadGif ($imgname)
{
    
$im = @imagecreatefromgif ($imgname); /* Attempt to open */
    
if (!$im) { /* See if it failed */
        
$im = imagecreatetruecolor (150, 30); /* Create a blank image */
        
$bgc = imagecolorallocate ($im, 255, 255, 255);
        
$tc = imagecolorallocate ($im, 0, 0, 0);
        
imagefilledrectangle ($im, 0, 0, 150, 30, $bgc);
        
/* Output an errmsg */
        
imagestring ($im, 1, 5, 5, "Error loading $imgname", $tc);
    }
    return 
$im;
}
header("Content-Type: image/gif");
$img = LoadGif("bogus.image");
imagegif($img);
?>