$fp = fopen('data.txt', 'w');fwrite($fp, '1');fwrite($fp, '23');fclose($fp);
.form-group.required .control-label:before{ color: red; content: "*"; position: absolute; margin-left: -15px; } 라벨 왼쪽에 * 넣기 bootstrap.css에 추가 폼에 required 추가 class="form-group required"
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