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POtrouble in updating multiple rows in mysql db
 

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  1. POtrouble in updating multiple rows in mysql db
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    <p>can someone tell me were I wrote wrong ? this code shows data from database but when I press submit it just reload the page and none of those field's update in database ... shall I change variables in update query to for example : $_POST['name']</p> <pre><code>&lt;?php $host="localhost"; // Host name $username="username"; // Mysql username $password="password"; // Mysql password $db_name="db"; // Database name $tbl_name="test"; // Table name // Connect to server and select databse. mysql_connect("$host", "$username", "$password")or die("cannot connect"); mysql_select_db("$db_name")or die("cannot select DB"); $sql="SELECT * FROM $tbl_name"; $result=mysql_query($sql); // Count table rows $count=mysql_num_rows($result); ?&gt; &lt;table width="500" border="0" cellspacing="1" cellpadding="0"&gt; &lt;form name="form1" method="POST" action=""&gt; &lt;tr&gt; &lt;td&gt; &lt;table width="500" border="0" cellspacing="1" cellpadding="0"&gt; &lt;tr&gt; &lt;td align="center"&gt;&lt;strong&gt;Id&lt;/strong&gt;&lt;/td&gt; &lt;td align="center"&gt;&lt;strong&gt;Name&lt;/strong&gt;&lt;/td&gt; &lt;td align="center"&gt;&lt;strong&gt;Lastname&lt;/strong&gt;&lt;/td&gt; &lt;td align="center"&gt;&lt;strong&gt;mid&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; &lt;?php while($rows=mysql_fetch_array($result)){ $id[]=$rows['id']; ?&gt; &lt;tr&gt; &lt;td align="center"&gt; &lt;input name="id[]" type="text" id="id" value="&lt;? echo $rows['id']; ?&gt;"&gt; &lt;/td&gt; &lt;td align="center"&gt; &lt;input name="name[]" type="text" id="name" value="&lt;? echo $rows['name']; ?&gt;"&gt; &lt;/td&gt; &lt;td align="center"&gt; &lt;input name="lastname[]" type="text" id="lastname" value="&lt;? echo $rows['lastname']; ?&gt;"&gt; &lt;/td&gt; &lt;td align="center"&gt; &lt;input name="midmark[]" type="text" id="midmark" value="&lt;? echo $rows['midmark']; ?&gt;"&gt; &lt;/td&gt; &lt;/tr&gt; &lt;? } ?&gt; &lt;tr&gt; &lt;td colspan="4" align="center"&gt;&lt;input type="submit" name="Submit" value="Submit"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/form&gt; &lt;/table&gt; &lt;?php if(isset($_POST['submit'])){ for($i=0;$i&lt;$count;$i++){ $sql1=mysql_query("UPDATE $tbl_name SET name='$name[$i]', lastname='$lastname[$i]', midmark='$midmark[$i]' WHERE id='$id[$i]' "); $result1=mysql_query($sql1); } } if(isset($result1)){ header("location:multiple.php"); } mysql_close(); ?&gt; </code></pre>
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    1. USMohammad_Hosseini
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    1. COadding the index to the inputs makes it easier to update ie name="id[<? echo $rows['id']; ?>]"
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      1. USWaygood
    2. COits `isset($_POST['submit'])` it should be `isset($_POST['Submit'])` Next what is $name here?
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      1. USNirmal Ram
    3. COBelieve you never set the variables in your query. Also, your code is wide open to SQL injection, use mysqli or PDO instead.
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      1. USAmazingDreams
 

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