php - fwrite duplicate file when saving to server -

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i'm trying save data file using fwrite, problem is creating second file same file name, , data saved second file , not original.

it works under windows localhost, apache 2.4.10, php 5.6 (no second file), not on live server running linux , php 5.4.42.

edit.php

$(document).ready(function() {       var pagename = "<?php echo $pagename; ?> ";      $('#save').click(function(e) {        e.preventdefault();        var content = $('#content').html();              $.ajax({                   type: 'post',                   url: 'includes/readinput.php',                  data: {                       content: content,                       pagename: pagename,                      }                     }).done(                         function(data){                           }                   );           });                   });  readinput.php. // receive post variable s "admin/ edit.php" $content = $_post['content']; $pagename = $_post['pagename']; $dirpath= "../content/"; file_put_contents($dirpath.$pagename,$content);

if open file data stored "a" append flag result write @ end of file content:

$file = fopen($filename, 'a'); fwrite($file, 'new content');

then file stored old content , "new content" the end.


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