php - Drupal 7 failed to open stream: Permission denied in image_gd_save() -

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i trying generate , scaled image thumbnails, scaling image has no problem , when use

image_save($_image) // works fine

(using same folder replacing) code has not problem, problem starts when tried save images in destination folder using destination parameter: 

image_save($_image, $destination) //throws errors

then error occurs:

warning: imagejpeg(c:\xampp\htdocs\drupal-devel\sites\default\files): failed open stream: permission denied in image_gd_save() (line 284 of c:\xampp\htdocs\drupal-devel\modules\system\image.gd.inc).

i'm working windows xampp , using function is_write of php, return true, no problem permissions.

i had been trying time , don't know what's happening, no problem permissions.

this code:

$destination = 'public://gallery/thumbs/'; $filepath = drupal_get_path('module', 'gallery_blueprint') . '/img/large/1.jpg'  // someplace before function file_prepare_directory($destination, file_create_directory); _generate_thumb($filepath,$destionation,300,null);  // function code function _generate_thumb($filepath, $destination_path, $width = null, $height = null) {   $_img = image_load($filepath);   $scaled = image_scale($_img, $width, $height); // return true    $result = image_save($_img, $destination_path); //error occurs whit destination path    return $result; }

is stupid answer written.

the function image_save() when pass throw $destination folder, doesn't write name default, need write final absolute name path, name of file required or throws.

warning: imagejpeg(c:\xampp\htdocs\drupal-devel\sites\default\files): failed open stream: permission denied in image_gd_save() (line 284 of c:\xampp\htdocs\drupal-devel\modules\system\image.gd.inc).  //finally need write whole filepath image_save($_img, $finalname_path) //$filname_path = public://gallery/thumbs/1.jpg

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