######## A게시판의 보기페이지 ###########
<a href="./write.php?bo_table='게시판명'&subject1=<?php echo $view[subject] ?>&code1=<?php echo $view[wr_1] ?>">보내기</a>
 
######## B게시판의 글쓰기페이지 ###########
<input type="text" name="wr_1" value="<?php echo $_GET['code1'] ?>">

<select name='wr_1' id='wr_1'>
<option value="">선택하세요.</option>
<option value="5" <?=($write["wr_1"] == "5") ? " selected " : ""?>>5</option>
<option value="4" <?=($write["wr_1"] == "4") ? " selected " : ""?>>4</option>
<option value="3" <?=($write["wr_1"] == "3") ? " selected " : ""?>>3</option>
<option value="2" <?=($write["wr_1"] == "2") ? " selected " : ""?>>2</option>
<option value="1" <?=($write["wr_1"] == "1") ? " selected " : ""?>>1</option>
</select>
 
일 경우 단순히 아래처럼 하는건 아닌것 같은데 도움 요청해봅니다.
 
<select name='wr_1' id='wr_1'>
<option value="">선택하세요.</option>
<option value="<?php echo $_GET['code1'] ?>" <?=($write["wr_1"] == "5") ? " selected " : ""?>>5</option>
<option value="<?php echo $_GET['code1'] ?>" <?=($write["wr_1"] == "4") ? " selected " : ""?>>4</option>
<option value="<?php echo $_GET['code1'] ?>" <?=($write["wr_1"] == "3") ? " selected " : ""?>>3</option>
<option value="<?php echo $_GET['code1'] ?>" <?=($write["wr_1"] == "2") ? " selected " : ""?>>2</option>
<option value="<?php echo $_GET['code1'] ?>" <?=($write["wr_1"] == "1") ? " selected " : ""?>>1</option>
</select>