problem med imageGIF
jag använder scriptet nedan för att skapa thumbnails, men när jag skall göra detta med en gif bild får jag detta felmeddelandet:
Fatal error: Call to undefined function: imagegif()
det verkar inte som GD stödjer imageGIF
Note: Since all GIF support was removed from the GD library in version 1.6, this function is not available if you are using that version of the GD library. Support is expected to return in a version subsequent to the rerelease of GIF support in the GD library in mid 2004. For more information, see the GD Project site.
läser jag på GD Project site så hittar jag
07/21/04: gd 2.0.28 has been released. gd 2.0.28 restores support for reading and writing GIF images. There is also a fix for a possible problem in gdImageTrueColorToPalette.
och på servern var det inte uppgraderat till den versionen, jag har bett de göra det så nu får vi se vad som händer. Men finns det nått sätt att lösa det OM de inte uppgraderar GD?
##############################################
# Shiege Iseng Resize Class
# 11 March 2003
# [email]shiegege@yahoo.com[/email]
# [url]http://kentung.f2o.org/scripts/thumbnail/[/url]
################
# Thanks to :
# Dian Suryandari <dianhau@yahoo.com>
/*############################################
Sample :
$thumb=new thumbnail("./shiegege.jpg"); // generate image_file, set filename to resize
$thumb->size_width(100); // set width for thumbnail, or
$thumb->size_height(300); // set height for thumbnail, or
$thumb->size_auto(200); // set the biggest width or height for thumbnail
$thumb->jpeg_quality(75); // [OPTIONAL] set quality for jpeg only (0 - 100) (worst - best), default = 75
$thumb->show(); // show your thumbnail
$thumb->save("./huhu.jpg"); // save your thumbnail to file
----------------------------------------------
Note :
- GD must Enabled
- Autodetect file extension (.jpg/jpeg, .png, .gif, .wbmp)
but some server can't generate .gif / .wbmp file types
- If your GD not support 'ImageCreateTrueColor' function,
change one line from 'ImageCreateTrueColor' to 'ImageCreate'
(the position in 'show' and 'save' function)
*/############################################
class thumbnail
{
var $img;
function thumbnail($imgfile)
{
//detect image format
$this->img["format"]=ereg_replace(".*\.(.*)$","\\1",$imgfile);
$this->img["format"]=strtoupper($this->img["format"]);
if ($this->img["format"]=="JPG" || $this->img["format"]=="JPEG") {
//JPEG
$this->img["format"]="JPEG";
$this->img["src"] = ImageCreateFromJPEG ($imgfile);
} elseif ($this->img["format"]=="PNG") {
//PNG
$this->img["format"]="PNG";
$this->img["src"] = ImageCreateFromPNG ($imgfile);
} elseif ($this->img["format"]=="GIF") {
//GIF
$this->img["format"]="GIF";
$this->img["src"] = ImageCreateFromGIF ($imgfile);
} elseif ($this->img["format"]=="WBMP") {
//WBMP
$this->img["format"]="WBMP";
$this->img["src"] = ImageCreateFromWBMP ($imgfile);
} else {
//DEFAULT
echo "Not Supported File";
exit();
}
@$this->img["lebar"] = imagesx($this->img["src"]);
@$this->img["tinggi"] = imagesy($this->img["src"]);
//default quality jpeg
$this->img["quality"]=75;
}
function size_height($size=100)
{
//height
$this->img["tinggi_thumb"]=$size;
@$this->img["lebar_thumb"] = ($this->img["tinggi_thumb"]/$this->img["tinggi"])*$this->img["lebar"];
}
function size_width($size=100)
{
//width
$this->img["lebar_thumb"]=$size;
@$this->img["tinggi_thumb"] = ($this->img["lebar_thumb"]/$this->img["lebar"])*$this->img["tinggi"];
}
function size_auto($size=100)
{
//size
if ($this->img["lebar"]>=$this->img["tinggi"]) {
$this->img["lebar_thumb"]=$size;
@$this->img["tinggi_thumb"] = ($this->img["lebar_thumb"]/$this->img["lebar"])*$this->img["tinggi"];
} else {
$this->img["tinggi_thumb"]=$size;
@$this->img["lebar_thumb"] = ($this->img["tinggi_thumb"]/$this->img["tinggi"])*$this->img["lebar"];
}
}
function jpeg_quality($quality=75)
{
//jpeg quality
$this->img["quality"]=$quality;
}
function show()
{
//show thumb
@Header("Content-Type: image/".$this->img["format"]);
/* change ImageCreateTrueColor to ImageCreate if your GD not supported ImageCreateTrueColor function*/
$this->img["des"] = ImageCreate($this->img["lebar_thumb"],$this->img["tinggi_thumb"]);
@imagecopyresized ($this->img["des"], $this->img["src"], 0, 0, 0, 0, $this->img["lebar_thumb"], $this->img["tinggi_thumb"], $this->img["lebar"], $this->img["tinggi"]);
if ($this->img["format"]=="JPG" || $this->img["format"]=="JPEG") {
//JPEG
imageJPEG($this->img["des"],"",$this->img["quality"]);
} elseif ($this->img["format"]=="PNG") {
//PNG
imagePNG($this->img["des"]);
} elseif ($this->img["format"]=="GIF") {
//GIF
imageGIF($this->img["des"]);
} elseif ($this->img["format"]=="WBMP") {
//WBMP
imageWBMP($this->img["des"]);
}
}
function save($save="")
{
//save thumb
if (empty($save)) $save=strtolower("./thumb.".$this->img["format"]);
/* change ImageCreateTrueColor to ImageCreate if your GD not supported ImageCreateTrueColor function*/
$this->img["des"] = ImageCreate($this->img["lebar_thumb"],$this->img["tinggi_thumb"]);
@imagecopyresized ($this->img["des"], $this->img["src"], 0, 0, 0, 0, $this->img["lebar_thumb"], $this->img["tinggi_thumb"], $this->img["lebar"], $this->img["tinggi"]);
if ($this->img["format"]=="JPG" || $this->img["format"]=="JPEG") {
//JPEG
imageJPEG($this->img["des"],"$save",$this->img["quality"]);
} elseif ($this->img["format"]=="PNG") {
//PNG
imagePNG($this->img["des"],"$save");
} elseif ($this->img["format"]=="GIF") {
//GIF
imageGIF($this->img["des"],"$save");
} elseif ($this->img["format"]=="WBMP") {
//WBMP
imageWBMP($this->img["des"],"$save");
}
}
}
