index.php
<form action="confirm.php" enctype="multipart/form-data" method="post"> ... <p> 職務経歴書<br> <label><input id="select-file" style="display:none" type="file" name="filename" onChange="file_selected()"><input id="file-name" type="text" value="ファイルを選択してください" readonly="readonly" onclick="file_select()"></label><span id="message">選択されていません</span> </p> ... <p> 「<a href="privacy.php">個人情報の取り扱い</a>」に同意の上、無料登録するのボタンをクリックしてください。 <input type="submit" id="regist" value="同意して無料登録する"> </p> </form>
confirm.php
 $upload = './cfile/'.$_FILES['filename']['name'];
 if(move_uploaded_file($_FILES['filename']['tmp_name'],$upload)){
 	echo 'success';
 } else {
 	echo 'failed';
 }
successed

delete temporary file before upload.
 $dir = glob('./cfile/*');
 foreach($dir as $file){
 	unlink($file);
 }
 $upload = './cfile/'.$_FILES['filename']['name'];
 if(move_uploaded_file($_FILES['filename']['tmp_name'],$upload)){
 	echo 'success';
 } else {
 	echo 'failed';
 }
– If this is done, the uploaded file will disappear when multiple users operate, so it has to be deleted by cron batch etc.
 $upload = './cfile/'.date("YmdHis").$_FILES['filename']['name'];
 if(move_uploaded_file($_FILES['filename']['tmp_name'],$upload)){
 	echo 'success';
 } else {
 	echo 'failed';
 }