PHP. Учебник. 2005

imagesavealpha

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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

Description

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.

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

- See also imagealphablending().

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