imagefill
(PHP 4, PHP 5)
imagefill — Flood fill
說明
bool imagefill
( resource $image
, int $x
, int $y
, int $color
)
Performs a flood fill starting at the given coordinate (top left is 0, 0) with the given color in the image .
參數
- image
-
An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().
- x
-
x-coordinate of start point
- y
-
y-coordinate of start point
- color
-
The fill color. A color identifier created with imagecolorallocate()
Return值
如果成功則回傳 TRUE，失敗則回傳 FALSE。
範例
Example#1 imagefill() example
<?php
$im = imagecreatetruecolor(100, 100);
// sets background to red
$red = imagecolorallocate($im, 255, 0, 0);
imagefill($im, 0, 0, $red);
header('Content-type: image/png');
imagepng($im);
imagedestroy($im);
?>
上例的輸出類似於：
