image2wbmp
(PHP 4 >= 4.0.5, PHP 5)
image2wbmp — 輸出影像到瀏覽器或檔案。
說明
bool image2wbmp
( resource
$image
[, string $filename
[, int $threshold
]] )
image2wbmp() outputs or save a WBMP
version of the given image.
參數
-
image -
由影像建立函式(例如imagecreatetruecolor())回傳的影像資源。
-
filename -
Path to the saved file. If not given, the raw image stream will be output directly.
-
threshold -
Threshold value, between 0 and 255 (inclusive).
回傳值
如果成功則回傳 TRUE，失敗則回傳 FALSE。
範例
Example #1 image2wbmp() example
<?php
$file = 'php.png';
$image = imagecreatefrompng($file);
header('Content-Type: ' . image_type_to_mime_type(IMAGETYPE_WBMP));
image2wbmp($image); // output the stream directly
imagedestroy($image);
?>
註釋
Note:
WBMP support is only available if PHP was compiled against GD-1.8 or later.
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