Overwrite file on server (PHP)
fopen, fwrite, overwrite, php, unlink
Solution
Use `wa+` for opening and truncating:
$file = fopen($savePath,"wa+");
fopen
w+: Open for reading and writing; place the file pointer at the beginning of the file and truncate the file to zero length. If the file does not exist, attempt to create it.
a+: Open for reading and writing; place the file pointer at the end of the file. If the file does not exist, attempt to create it.
Problem
I am making an Android application that need to be able to push files onto a server. For this I'm using `POST` and `fopen/fwrite` but this method only appends to the file and using `unlink` before writing to the file has no effect. (`file_put_contents` has the exact same effect) This is what I have so far ``` <?php $fileContent = $_POST['filecontent']; $relativePath = "/DatabaseFiles/SavedToDoLists/".$_POST['filename']; $savePath = $_SERVER["DOCUMENT_ROOT"].$relativePath; unlink($savePath); $file = fopen($savePath,"w"); fwrite($file,$fileContent); fclose($file); ?> ``` The file will correctly delete its self when I don't try and write to it after but if I do try and write to it, it will appended. Anyone got any suggestions on overwriting the file contents? Thanks, Luke.