input text 따옴표 처리

<input type="text" value="<?php echo htmlentities($myValue); ?>">

htmlspecialchars($myValue, ENT_QUOTES, 'UTF-8');

'&' (ampersand) becomes '&amp;'

'"' (double quote) becomes '&quot;' when ENT_NOQUOTES is not set.

''' (single quote) becomes '&#039;' only when ENT_QUOTES is set.

'<' (less than) becomes '&lt;'

'>' (greater than) becomes '&gt;'

htmlspecialchars 는 예약된 HTML 문자만 인코딩하는 반면 htmlentities 는 HTML 표현이 있는 모든 것을 변환합니다