(PHP 4 >= 4.0.7, PHP 5, PHP 7, PHP 8)
imagegd2 — Output GD2 image to browser or file
$image
,$file
= null
,$chunk_size
= 128,$mode
= IMG_GD2_RAW
Outputs or saves the given image
in GD2 format.
image
Una risorsa immagine, restituita da una delle funzioni di creazione immagine, come imagecreatetruecolor().
file
Il percorso in cui salvare il file. Se non è impostato o è null
, viene restituito il flusso raw dell'immagine.
chunk_size
Chunk size.
mode
Either IMG_GD2_RAW
or
IMG_GD2_COMPRESSED
. Default is
IMG_GD2_RAW
.
Restituisce true
in caso di successo, false
in caso di fallimento.
However, if libgd fails to output the image, this function returns true
.
Versione | Descrizione |
---|---|
8.0.3 |
file is now nullable.
|
8.0.0 |
image expects a GdImage
instance now; previously, a valid gd resource was expected.
|
Example #1 Outputting a GD2 image
<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5, "A Simple Text String", $text_color);
// Output the image
imagegd2($im);
?>
Example #2 Saving a GD2 image
<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5, "A Simple Text String", $text_color);
// Save the gd2 image
// The file format for GD2 images is .gd2, see http://www.libgd.org/GdFileFormats
imagegd2($im, 'simple.gd2');
?>
Nota:
The GD2 format is commonly used to allow fast loading of parts of images. Note that the GD2 format is only usable in GD2-compatible applications.
The GD and GD2 image formats are proprietary image formats of libgd. They have to be regarded obsolete, and should only be used for development and testing purposes.