php：图像处理

       首先确保启动php的gd2库；在php.ini中启动extension=php_gd2.dll;

<?php$im=imagecreatetruecolor(400,300);$red=imagecolorallocate($im,255,0,0);//imageellipse($im,40,20,20,20,$red);//imageline($im,0,0,400,300,$red);//imagerectangle($im,10,20,300,200,$red);//imagefilledrectangle($im,20,100,360,150,$red);//imagearc($im,200,150,300,220,40,250,$red);//imagefilledarc($im,200,150,300,220,40,250,$red,IMG_ARC_PIE);//$srcImage=imagecreatefromjpeg("123.jpg");//$srcImageInfo=getimagesize("123.jpg");////imagecopy($im,$srcImage,10,5,50,60,$srcImageInfo[0],$srcImageInfo[1]);//imagestring($im,22,5,8,'hello World',$red);$str='hello word,天津海港城';//msyhbd.ttf为支持中文的字体，在C:WINDOWS/FONTS里复制到目录；imagettftext($im,25,10,15,140,$red,"msyhbd.ttf",$str);header("content-type:image/png");imagepng($im);imagedestroy($im);