php - PDF Files from database keep getting corrupted -

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so storing files in database. don't ask why, know not in control of this. next, able store them hexidecimal representation , spit them display no problem, attach them email using phpmailer , sent right name , all, corrupted. walk through step step below know how being stored, , may me debug issue. (please note code paraphrased save space , show needed)

step 1

file grabbed , processed 

$name = $_files['file_data']['name']; $file = prepareimagedbstring($_files['file_data']['tmp_name']); $mime_type = $_files['file_data']['type'];

name, file, , mime_type stored

here function prepareimagedbstring()

function prepareimagedbstring($filepath){     $out = 'null';     $handle = @fopen($filepath, 'r');     if($handle){         $content = @fread($handle, filesize($filepath));         $content = bin2hex($content);         @fclose($handle);         $out = $content;     }     return $out; }

step 2

when file being viewed show embedded object. file small posted whole code. note file shows no problems here. 

$q = "select lease_doc_file_data lease_doc_file lease_doc__id ='".$_get['id']."'"; $file = ""; foreach($conn->query($q) $row){     $file = $row['lease_doc_file_data']; } if(!empty($file)){      header("content-type: application/pdf");     ob_clean();     flush();     echo hextobin($file); }

here function hextobin()

function hextobin($hexstr){      $n = strlen($hexstr);      $sbin = "";        $i = 0;      while($i < $n){                $a = substr($hexstr,$i,2);                    $c = pack("h*", $a);          if ( $i == 0 ){ $sbin = $c; }          else { $sbin .= $c;}          $i += 2;      }      return $sbin;  }

step 3

finally part go send mailer. 

$q = "select lease_doc_file_data, lease_doc_file_name, lease_doc_file_type lease_doc_file lease_doc__id ='$id'"; $file_data = ""; $file_name = ""; $file_type = ""; foreach($conn->query($q) $row){     $file_data = $row['lease_doc_file_data'];     $file_name = $row['lease_doc_file_name'];     $file_type = $row['lease_doc_file_type']; } $file_data = hextobin($file_data); $mail->addstringattachment($file_data, $file_name, 'binary', $file_type);

so 3 step process , i"m not sure error coming from. can help! thank in advance!


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