Use of the PHP GD library

<?php/** *  Resize Picture  *  $path The width of the picture is greater than $width, and so on than the zoom  *  $path picture height is greater than $height cut into multiple pictures   *  @param   $path   picture address  *  @param   $width  integer|string   picture width  *   @param   @height  integer|string  Image height  */function imgresize ($path,  $width,   $height)  {  //  store the resulting picture path    $imgPaths  = array ();   //   Get picture width/height/type   list ($srcW,  $srcH,  $type)  = getimagesize ($path);   $type  -= 1;  //  Create a source image    $imagecreatefromFuns  = array (' Imagecreatefromgif ',  ' imagecreatefromjpeg ',  ' imagecreatefrompng ');   $src  = $ imagecreatefromfuns[$type] ($path);  //  the width of the picture is greater than $width zoom   if (  $srcW  >   $width  )  {     $dstHeight  =  $srcH  *  ($width  /   $srcW);     //  Create a new True color image      $dst  = imagecreatetruecolor (  $width,  $dstHeight  ) ;     imagecopyresampled ($dst,  $src,  0, 0, 0, 0,  $width ,  $dstHeight,  $srcW,  $srcH);     $src  =  $dst;      //  Update the width and height of the original artwork      $srcW  =  $width;     $srcH  =  $dstHeight;  }  else {    //  No adjustment width       $width  =  $srcW;  }    //  picture height is greater than $height cut into multiple pictures    if (  $srcH  >  $height  )  {    //  height position of cut       $srcY  = 0;    do {      $ dstheight =  ($srcY  +  $height  >  $srcH)  ?  ($srcH  -  $srcY)  :  ($height);       $dst  = imagecreatetruecolor (  $width,  $dstHeight  );       imagecopyresampled ($dst,  $src,   0, 0, 0, $ srcy,  $width,  $dstHeight,  $width,  $dstHeight);       $ filepath =  './img/'  . md5 (Microtime (true))  .  '. jpg ';        $imgPaths [] =  $filePath;       imagejpeg ($DST,  $ FilePath)       is_resource ($DST)  and imagedestroy ($DST);        $srcY  +=  $dstHeight;     }while ($srcY  < $ SrcH);  }  else {    //  If the height of   is adjusted to the original image (and possibly after the width is adjusted) Save as file      $filePath  =  './img/'  . md5 (Microtime (true))  .  '. jpg ';     $imgPaths [] =  $filePath;     imagejpeg ($src,  $filePath);  }  //  Free memory   isset ($SRC)  and is_resource ($SRC)  and imagedestroy ($SRC);   isset ($DST)  and is_resource ($DST)  and imagedestroy ($DST);  return  $imgPaths;} /** *  Adjust image clarity  *  @param  string  $path    picture path  *  @param   string  $quality   Clarity  *  @return  string  new picture Path  */function requality (   $path,  $quality  )  {     $image _type = image_type_to_ Extension (Exif_imagetype ($path),  false);     $fun  =  "imagecreatefrom{$image _ Type} ";     $src  =  $fun ($path);     $newPath  =  Generateuniquefilepath ('./img/');     imagejpeg ($src,  $newPath,  $quality);     return  $newPatH;} /** *  generate a unique file path  *  @param   $basePath  string  folder path  *  @param  $ suffix string *  @return  string  file path  */function generateuniquefilepath ($ basepath,  $suffix = '. jpg ')  {   $filePath  =  $basePath  . md5 (Microtime ( true)  .  $suffix;  return  $filePath;} Header (' content-type:image/png '); $path  =  '/img/jjj.jpg '; $imgPaths  = imgresize ($path,  10000, 10000);// requality ($path,  1);

Use of the PHP GD library