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Last updated: Fri, 26 Jan 2007

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# imagesavealpha

(PHP 4 >= 4.3.2, PHP 5)

imagesavealpha -- Set the flag to save full alpha channel information (as opposed to single-color transparency) when saving PNG images

## Описание

bool imagesavealpha ( resource image, bool saveflag )

imagesavealpha() sets the flag to attempt to save full alpha channel information (as opposed to single-color transparency) when saving PNG images.

You have to unset alphablending (`imagealphablending($im, `FALSE`)`), to use it.

Alpha channel is not supported by all browsers, if you have problem with your browser, try to load your script with an alpha channel compliant browser, e.g. latest Mozilla.

## Список параметров

`image`

  An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

`saveflag`

## Возвращаемые значения

Возвращает `TRUE` в случае успешного завершения или `FALSE` в случае возникновения ошибки.

## Примечания

> Замечание: Эта функция нуждается в GD версии 2.0.1 или выше.

## Смотрите также

imagealphablending()

add a note User Contributed Notes
imagesavealpha
doggz at mindless dot com
05-Oct-2003 09:50
`To use PNG-24 in IE 5.5+ try:
<img alt="Transparant PNG" src="myimage.gif" style="width: 200px; height: 200px; filter:progid:
DXImageTransform.Microsoft.AlphaImageLoader(src='myimage.png', sizingMethod='scale')" />
there is more info available at http://people.brandeis.edu/~peelle/png/`
add a note
imagesetbrush imagerotate

Last updated: Fri, 26 Jan 2007
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