PHP. Руководство по PHP. 2005

imagecreatefromgif

(PHP 3, PHP 4, PHP 5)imagecreatefromgif -- Create a new image from file or URL

Description

resource imagecreatefromgif(string filename)

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

imagecreatefromgif() returns an empty string on failure. It also outputs an error message, which unfortunately displays as a broken link in a browser. To ease debugging the following example will produce an error GIF:

Пример 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;
}
?>

Замечание: GIF support was removed from the GD library in Version 1.6, and added back in Version 2.0.28. This function is not available between these versions.

Ваше письмо	×