Problem with codeigniter image resizing and ajax / json. Please help! -


i have problem driving me crazy. building cms system involves uploading images jquery ajax plugin (uploadify) , having them resized server-side according user-specified dimensions using codeigntier's image resize class.

the problem (about 1 in 7 times) image resizing fails on 1 of images (up 5 images sent @ time) causing ajax post function timeout. ci's error logs says 1 of files corrupt. not quite sure how or why happens, anyway- trying set error system whereby if happens, error sent through json alerted javascript, asking them please try again or whatever. here problem-

in model have:

foreach($size_image $si){                 if(!$this->resize_image($si['dimensions'],$si['filename'],$si['oldpath'],$si['newpath'])){                     return false;           // can confirm indeed return false whenever image resize problem occurs...                                                                                           }             }

in controller have:

    function save_page(){     if($this->admin_model->save_page()){         $return_array['error'] = '';     }else{         $return_array['error'] = 'sorry, there problem processing 1 of images.';     }     $return_array['success'] = true;     echo json_encode($return_array);     exit(); }

whenever resizing works (and save_page function returns true) echo json encode works fine , being received @ other end , handled javascript. not when returns false!!

just prove not being silly, can replace if($this->admin_model->save_page()){ if(!$this->admin_model->save_page()){ (meaning error message when resizing does work) - , yes, error message on screen!

so whenever resizing problem occurs, reason above function refuses echo json, though getting part of script.

and absolute clarity, can this:

function save_page(){     if($this->admin_model->save_page()){         $return_array['error'] = '';     }else{      //  $return_array['error'] = 'sorry, there problem processing 1 of images.';                  $this->load->helper('file');         write_file('testoutput.txt','error!!!!');       // <-- , yep, 'error' written file.          exit();              }     $return_array['success'] = true;     echo json_encode($return_array);                    // <-- ...so why hell doesn't work then?     exit(); }

why oh why oh why?

any or suggestions welcome, many in advance.

maybe because return

$return_array['success'] = true;

every time, if fails?


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