php - fwrite adds an empty line at textfile -

i have problem fwrite. do. data textfile print table. after print values user should able select data should deleted (i key). when he/she clicks on delete file post key has deleted. of works. update array deleting key , works. data has rewritten textfile file adds space causes array have "undefined offset" error. have rid of blank line. code :

 <?php  // opening required file include("deletefunc.php");  $obj = new deletefunc(); $result = $obj->getmedata(); // posted value (the key has deleted array) $deletekey = $_post['rownumber'];  $updatearray = array();  for($i=0; $i<count($result); $i++){     if($i==$deletekey){      }     else{         $updatearray[$i] = $result[$i];     } } var_dump($updatearray);  // deleting data form textfile (replacing) $filename="phones.txt"; $file = fopen($filename,"w"); foreach($updatearray $row){     fwrite($file, $row); }  ?> 

this guess :

your problem comes fact element (except last one) ending endofline character... when remove element in middle, no problem, if remove last one, 1 before has endofline character, , therefore have empty line in file.

so should add endofline character when writing file, , not keeping them in elements.

to so, should use php_eol predefined constant end of line character adapted platform.

and if wondering looking @ question, fwrite() php function not add eol characters.