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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`

  Whether to save the alpha channel or not. Default to `FALSE`.

### 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()

imagerotate
imagesetbrush
GD Функции
PHP Manual