note 72497 modified in function.fopen by danbrown

Note: If you have opened the file in append mode ("a" or "a+"), any data you write to the file will always be appended, regardless of the file position. But PHP distinguish between read and write position, and you may freely read at any position, but when you write it will always append at the end. If you don't want that write restriction, open the file in read-write mode ("r+") and then start by moving the file pointer to the end. <?php if (($fp = fopen($filename, "r+") === FALSE) { // handle error exit; } if (fseek($fp, 0, SEEK_END) === -1) { // handle error exit; } ?> --was-- Note: If you have opened the file in append mode ("a" or "a+"), any data you write to the file will always be appended, regardless of the file position. But PHP distinguish between read and write position, and you may freely read at any position, but when you write it will always append at the end. If you don't want that write restriction, open the file in read-write mode ("r+") and then start by moving the file pointer to the end. if (($fp = fopen($filename, "r+") === FALSE) { // handle error exit; } if (fseek($fp, 0, SEEK_END) === -1) { // handle error exit; } http://php.net/manual/en/function.fopen.php