PHP - Manual: imagecolordeallocate
2024-12-22
(PHP 4, PHP 5, PHP 7, PHP 8)
imagecolordeallocate — 取消图像颜色的分配
$image
, int $color
): boolimagecolordeallocate() 函数取消先前由 imagecolorallocate() 或 imagecolorallocatealpha() 分配的颜色。
<?php
$white = imagecolorallocate($im, 255, 255, 255);
imagecolordeallocate($im, $white);
?>
官方地址:https://www.php.net/manual/en/function.imagecolordeallocate.php