PHP映像操作類

基於已給出的各種映像操作方法，這裡我總結出了PHP映像操作的一個類，包括給映像添加文字浮水印、映像浮水印和壓縮圖片。讀者可自行添加功能。

info = getimagesize($src);$this->type = image_type_to_extension($this->info[2],false);$fun = "imagecreatefrom".$this->type;$this->image = $fun($src);}//縮圖public function thumb($width, $height){$image_thumb = imagecreatetruecolor($width, $height);imagecopyresampled($image_thumb, $this->image, 0, 0, 0, 0, $width, $height, $this->info[0], $this->info[1]);imagedestroy($this->image);$this->image = $image_thumb;}//文字浮水印public function fontMark($content, $fontUrl, $size, $color, $locate=array('x'=>0,'y'=>0), $angle=0){$color = imagecolorallocatealpha($this->image, $color[0], $color[1], $color[2], $color[3]);imagettftext($this->image, $size, $angle, $locate['x'], $locate['y'], $color, $fontUrl, $content);}//圖片浮水印public function imageMark($src,$locate,$alpha){$info2 = getimagesize($src);$type2 = image_type_to_extension($info2[2],false);$fun2 = "imagecreatefrom".$type2;$water = $fun2($src);imagecopymerge($this->image, $water, $locate['x'], $locate['y'], 0, 0, $info2[0], $info2[1], $alpha);imagedestroy($water);}//在瀏覽器中顯示public function show(){header("Content-type:".$this->info['mime']);$fun = "image".$this->type;$fun($this->image);}//儲存為檔案public function save($newname){$fun = "image".$this->type;$fun($this->image, $newname.'.'.$this->type);}public function __destruct(){imagedestroy($this->image);}}

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