循环出来的Select选项问题

选择月份:		<select name="month">			<?php 			for($i="1"; $i<="12"; $i++){				if($i<10){					echo "<option>0".$i."月</option><br>";				}else{					echo "<option>".$i."月</option><br>";				}			} 			?>		</select>

<select name="month"><?php $m = 5; // 假定选中的是 5 月for($i="1"; $i<="12"; $i++){  printf("<option value=%d %s>%02d月</option>", $i, $m == $i ? ' selected' : '', $i);}?></select>

<select name="month"><?php $m = 5; // 假定选中的是 5 月for($i="1"; $i<="12"; $i++){  printf("<option value=%d %s>%02d月</option>", $i, $m == $i ? ' selected' : '', $i);}?></select>

<select name="month"><?php $m = 5; // 假定选中的是 5 月for($i="1"; $i<="12"; $i++){  printf("<option value=%d %s>%02d月</option>", $i, $m == $i ? ' selected' : '', $i);}?></select>

选择仓库:		<select name="depot">			<?php			$ckSQL = "SELECT MC001,MC002 FROM {$dataBase}CMSMC";			$ckQuery = sqlsrv_query($conn,$ckSQL);			if( $ckQuery === false) {				die( print_r( sqlsrv_errors(), true) );			}			$ck = $_POST["depot"];			while($ckRow = sqlsrv_fetch_array($ckQuery)) {					//echo "<option>".$ckRow[1]."</option>";				printf("<option >%s</option>", $ckRow[1], $ck == $ckRow[1] ? ' selected' : '', $ckRow[1]);			}			sqlsrv_free_stmt( $query);			?>			<option value="全部" <?php if($_POST["depot"] == "全部"){echo 'selected="selected"';} ?>>全部</option>		</select>