(PHP 5 >= 5.5.0, PHP 7)
imagescale — Scale an image using the given new width and height
$image
, int $new_width
[, int $new_height
= -1
[, int $mode
= IMG_BILINEAR_FIXED
]] ) : resourceimagescale() scales an image using the given interpolation algorithm.
Notă:
Unlike many of other image functions, imagescale() does not modify the passed
image
; instead, a new image is returned.
image
O resursă - imagine, întoarsă de una din funcțiile de creare a imaginilor, cum ar fi imagecreatetruecolor().
new_width
The width to scale the image to.
new_height
The height to scale the image to. If omitted or negative, the aspect ratio will be preserved.
You should always provide the height if using PHP 5.5.18 or earlier, or PHP 5.6.2 or earlier, as the aspect ratio calculation was incorrect.
mode
One of IMG_NEAREST_NEIGHBOUR
,
IMG_BILINEAR_FIXED
,
IMG_BICUBIC
,
IMG_BICUBIC_FIXED
or anything else (will use two
pass).
Notă:
IMG_WEIGHTED4
is not yet supported.
Return the scaled image resource on success sau FALSE
în cazul eșecului.
Versiune | Descriere |
---|---|
5.5.19/5.6.3 |
The calculation of the height if new_height was
negative or omitted was fixed; prior to these versions, the aspect
ratio was not maintained correctly.
|
imagecopyresized() - Copy and resize part of an image imagecopyresampled() - Copy and resize part of an image with resampling