Descrizione

imagegd2(
    GdImage $image,
    ?string $file = null,
    int $chunk_size = 128,
    int $mode = IMG_GD2_RAW
): bool

Outputs or saves the given image in GD2 format.

Elenco dei parametri

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.

Valori restituiti

Restituisce true in caso di successo, false in caso di fallimento.

Attenzione

However, if libgd fails to output the image, this function returns true.

Log delle modifiche

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.

Esempi

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');
?>

Note

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.

Avviso

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.

Vedere anche:

imagegd() - Output GD image to browser or file