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

Note: Эта функция нуждается в GD версии 2.0.1 или выше.

Смотрите также

imagealphablending()