自己写的一个图片加水印类,暂时只支持水印图片,水印文字的还没有完善
代码不是很完善,欢迎大家交流指正!
调用方式:
先包含类文件
然后实例化类:
$img = new Images;
然后提供图片:
$img->imgpath(原图片路径及名称,水印图片路径及名称);
之后开始加水印:
$img->send();
说明:
send( strimg filename ) 这个方法有一个函数,可以省略,在省略的情况下,保存的图片路径和名称和原来的一样,如需保存成例外的图片,就在这里提供要保存的图片路径及名称
例外,还有一个方法,show(); 这个方法用于显示加好水印的图片
这个方法可以单独调用,但必须先调用 send()方法, 也可以连续调用: $img->send()->show();
<?PHP
class Images{
private $imgA = '',$imgB = '';
private $imgWA = 0,$imgWB = 0,$typea = 0;
private $imgHA = 0,$imgHB = 0,$typeb = 0;
private $objecta,$objectb;
private $weizhi = 1; // 1坐上, 2中上, 3 右上, 4 中左, 5中部, 6 中右, 7, 下左, 8 下中, 9 下右
private $X = 0,$Y = 0;
private $okfile = '1.jpg';
public function imgpath( $oldimg = '',$newing = '',$WeiZhi = 1 ) { //指定图片
$this->imgA = $oldimg;
$this->imgB = $newing;
$this->weizhi = $WeiZhi;
return $this;
}
public function send( $Name = '' ){
!empty( $Name ) or $Name = $this->imgA;
list($this->imgWA,$this->imgWB,$this->typea) = $this->imgread( $this->imgA );
list($this->imgHA,$this->imgHB,$this->typeb) = $this->imgread( $this->imgB );
$this->objecta = $this->openimg( $this->imgA,$this->typea );
$this->objectb = $this->openimg( $this->imgB,$this->typeb );
$this->WZ();
$this->start();
$this->over( $Name );
return $this;
}
private function WZ() {
switch( $this->weizhi ) {
case 2:
$this->X = ( $this->imgWA - $this->imgHA ) / 2;
break;
case 3:
$this->X = ( $this->imgWA - $this->imgHA );
break;
case 4:
$this->Y = ( $this->imgWB - $this->imgHB ) / 2 ;
break;
case 5:
$this->X = ( $this->imgWA - $this->imgHA ) / 2;
$this->Y = ( $this->imgWB - $this->imgHB ) / 2 ;
break;
case 6:
$this->X = ( $this->imgWA - $this->imgHA );
$this->Y = ( $this->imgWB - $this->imgHB ) / 2 ;
break;
case 7:
$this->Y = ( $this->imgWB - $this->imgHB );
break;
case 8:
$this->X = ( $this->imgWA - $this->imgHA ) / 2;
$this->Y = ( $this->imgWB - $this->imgHB );
break;
case 9:
$this->X = ( $this->imgWA - $this->imgHA );
$this->Y = ( $this->imgWB - $this->imgHB );
break;
default:
$this->X = 0;
$this->Y = 0;
}
}
private function openimg( $FileName = '',$type = 0 ) {
switch( $type ) {
case 1:
$obj = imagecreatefromgif( $FileName ); break;
case 2:
$obj = imagecreatefromjpeg( $FileName ); break;
case 3:
$obj = imagecreatefrompng( $FileName ); break;
default:
return false;
}
return $obj;
}
private function start(){
imagecopy( $this->objecta,$this->objectb,$this->X,$this->Y,$this->imgHA,$this->imgHB );
}
private function over( $name = '1.jpg' ) {
$this->okfile = $name;
switch ( $this->typea ) {
case 1:
imagegif( $this->objecta,$name );break;
case 2:
imagejpeg( $this->objecta,$name );break;
case 3:
imagepng( $this->objecta,$name ); break;
default:
return false;
}
}
private function imgread( $FilePath = '' ) {
$Arr = getimagesize( $FilePath );
return array( $Arr[0],$Arr[1],$Arr[2] );
}
public function show(){
@header('content-type:image/*');
echo @file_get_contents( $this->okfile );
}
}