(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 a GD2 image to the given file
.
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);
// Free up memory
imagedestroy($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');
// Free up memory
imagedestroy($im);
?>
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.