Phpgd library for remote image download

Because today I want to write a remote image download class, I have prepared a phpgd Library in advance to implement the remote image download function. of course, curl is better, the phpgd library implements the remote image download function. the two functions of the gd library are ImageCreateFromXXX (

Because today I want to write a remote image download class, I have prepared a php gd Library in advance to implement the remote image download function. of course, curl is better, the remote image download function of the php gd library mainly uses the two functions ImageCreateFromXXX () of the gd library to generate image functions and ImageXXX functions. XXX indicates the extensions of different images, so you have to find a way to get the extension of the remote image. The php code is attached as follows:

';} Function getPicture ($ url, $ pictureName) {if ($ url = "") return false; // get the image extension $ info = getimagesize ($ url ); $ mime = $ info ['Mime ']; $ type = substr (strrchr ($ mime,'/'), 1 ); // for different Image types, select the function switch ($ type) {case 'jpeg ': $ img_create_func = 'imagecreatefromjpeg'; $ img_save_func = 'imagejpeg '; $ new_img_ext = 'jpg '; break; case 'PNG': $ img_create_func = 'imagecreatefrompng '; $ img_save_func = 'imagepng'; $ new_img _ Ext = 'PNG '; break; case 'bmp': $ img_create_func = 'imagecreatefrombmp '; $ img_save_func = 'imagebmp'; $ new_img_ext = 'bmp '; break; case 'GIF': $ img_create_func = 'imagecreatefromgif '; $ img_save_func = 'imagegif'; $ new_img_ext = 'GIF'; break; case 'vnd. wap. wbmp ': $ img_create_func = 'imagecreatefromwbmp'; $ img_save_func = 'imagewbmp '; $ new_img_ext = 'bmp'; break; case 'xbm ': $ img_create_func = 'alipay' Img_save_func = 'imagexbm '; $ new_img_ext = 'xbm'; break; default: $ img_create_func = 'alipay'; $ img_save_func = 'imagejpeg '; $ new_img_ext = 'jpg ';} if ($ pictureName = "") {$ pictureName = time (). ". {$ new_img_ext} ";} else {$ pictureName = $ pictureName. ". {$ new_img_ext} ";}$ src_im = $ img_create_func ($ url); // create a new image from the url $ img_save_func ($ src_im, $ pictureName ); // output the file to the file return $ pictureName;}?>

The running result is as follows: (The image is automatically saved in the current file directory. if you do not understand it, leave a message)