1 <?php

     2 header ("Content-type: image/jpeg");

     3 $file_name=$_GET['f'];

     4 $crop_height=$_GET['h'];

     5 $crop_width=$_GET['w'];

     6 $file_type= explode('.', $file_name);

     7 $file_type = $file_type[count($file_type) -1];

     8 $file_type=strtolower($file_type);

     9 

    10 $original_image_size = getimagesize($file_name);

    11 $original_width = $original_image_size[0];

    12 $original_height = $original_image_size[1];

    13 

    14 if($file_type=='jpg')

    15 {

    16 $original_image_gd = imagecreatefromjpeg($file_name);

    17 }

    18 

    19 if($file_type=='gif')

    20 { $original_image_gd = imagecreatefromgif($file_name);

    21 }

    22 

    23 if($file_type=='png')

    24 {

    25 $original_image_gd = imagecreatefrompng($file_name);

    26 }

    27 

    28 $cropped_image_gd = imagecreatetruecolor($crop_width, $crop_height);

    29 $wm = $original_width /$crop_width;

    30 $hm = $original_height /$crop_height;

    31 $h_height = $crop_height/2;

    32 $w_height = $crop_width/2;

    33 

    34 if($original_width > $original_height )

    35 {

    36 $adjusted_width =$original_width / $hm;

    37 $half_width = $adjusted_width / 2;

    38 $int_width = $half_width - $w_height;

    39 

    40 imagecopyresampled($cropped_image_gd ,$original_image_gd ,-$int_width,0,0,0, $adjusted_width, $crop_height, $original_width , $original_height );

    41 }

    42 elseif(($original_width < $original_height ) || ($original_width == $original_height ))

    43 {

    44 $adjusted_height = $original_height / $wm;

    45 $half_height = $adjusted_height / 2;

    46 $int_height = $half_height - $h_height;

    47 

    48 imagecopyresampled($cropped_image_gd , $original_image_gd ,0,-$int_height,0,0, $crop_width, $adjusted_height, $original_width , $original_height );

    49 }

    50 else {

    51 

    52 imagecopyresampled($cropped_image_gd , $original_image_gd ,0,0,0,0, $crop_width, $crop_height, $original_width , $original_height );

    53 }

    54 imagejpeg($cropped_image_gd);

    55 

    56 ?>