checkbox 用法

 <input id="flagc" type ="checkbox" value="c" name="flags[]"<?php if(strpos($row['flag'],'c')!==false) echo "checked='checked'" ;?>/>推薦[c]    <input id="flaga" type ="checkbox" value="a" name="flags[]"<?php if(strpos($row['flag'],'a')!==false) echo "checked='checked'" ;?>/>特薦[a]    <input id="flagh" type ="checkbox" value="h" name="flags[]"<?php if(strpos($row['flag'],'h')!==false) echo "checked='checked'" ;?>/>頭條[h]    <input id="flago" type ="checkbox" value="o" name="flags[]"<?php if(strpos($row['flag'],'o')!==false) echo "checked='checked'" ;?>/>熱門[o]    <input id="flagn" type ="checkbox" value="n" name="flags[]"<?php if(strpos($row['flag'],'n')!==false) echo "checked='checked'" ;?>/>最新[n]

這里strpos是檢測字符串中是否包含某個字符串！

strpos返回整數（找不到返回邏輯假）'true'在數值比較中被轉換為0如果$row['flag']第一個字符為c時，恰巧被匹配其他字符返回的都不是0，所以不會匹配成功。

當參數傳遞為字符串是如何轉變成數組與顯示輸出。

 <?php $flags = explode(',',$v['flag']) ; foreach($flags as $x){     switch($x){     case c: echo "推薦[c]"; break; case a: echo "特薦[a]"; break; case h: echo "頭條[h]"; break; case o: echo "熱門[o]"; break; case n: echo "最新[n]"; break; } }?>

數據庫插入

else if($_GET['do']=='editok'){$id = $_POST['id'];$checked = $_POST['checked'];$flag = $_POST['flags'];$flags=implode(",",$flag);$sql = 'update djs_skstudent_voice set checked='.$checked.',flag="'.$flags.'" where id='.$id;$dsql->ExecuteNoneQuery($sql);echo "<script> window.location.href='student_voice.php';</script>";}