imagecolordeallocate

(PHP 4, PHP 5, PHP 7)

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imagecolordeallocate ( resource $image , int $color ) : bool

imagecolordeallocate() ����ȡ����ǰ�� imagecolorallocate() �� imagecolorallocatealpha() �������ɫ��

<?php
$white 
imagecolorallocate($im255255255);
imagecolordeallocate($im$white);
?>

�μ� imagecolorallocate() �� imagecolorallocatealpha()��