php[world] 2019 — 25 years of PHP

imagecolordeallocate

(PHP 4, PHP 5, PHP 7)

imagecolordeallocate取消图像颜色的分配

说明

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

imagecolordeallocate() 函数取消先前由 imagecolorallocate()imagecolorallocatealpha() 分配的颜色。

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

参见 imagecolorallocate()imagecolorallocatealpha()

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