Return the image types supported by this PHP build
Syntax
imagetypes(): int
Return
Returns a bit-field corresponding to the image formats supported by the version of GD linked into PHP.
The following bits are returned:
| Number | Image Type |
|---|---|
| 1 | IMG_GIF |
| 2 | IMG_JPG |
| 4 | IMG_PNG |
| 8 | IMG_WBMP |
| 16 | IMG_XPM |
| 32 | IMG_WEBP |
| 64 | IMG_BMP |
| 128 | IMG_TGA |
| 256 | IMG_AVIF |
Examples
1 · return
<? $return = imagetypes(); echo $return; ?>
511
2 · supported
<?
$return = imagetypes();
$array = array(
IMG_GIF,
IMG_JPG,
IMG_PNG,
IMG_WBMP,
IMG_XPM,
IMG_WEBP,
IMG_BMP,
IMG_TGA,
IMG_AVIF
);
echo "supported:" . PHP_EOL;
for($i = 0; $i < count($array); ++$i)
{
if($return & $array[$i])
{
echo $array[$i] . PHP_EOL;
}
}
?>supported: 1 2 4 8 16 32 64 128 256
