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POUnable to delete rows through php, HTML
 

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    <p>I am just unable to understand why the rows are not getting deleted! please note that i am getting the login values of corrected check boxes in the php page. from my point of view, most probably error should be in php page where i am using 'DELETE FROM' query.</p> <pre><code>&lt;?php session_start(); ?&gt; &lt;html&gt; &lt;head&gt; &lt;form id="delete_customers" action="deletecustomers.php" method="post"&gt; &lt;?php $con = mysql_connect("localhost","root",""); if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("car_rental_system", $con); $result = mysql_query("SELECT * FROM customer"); echo "&lt;table border='1' align='center'&gt; &lt;tr&gt; &lt;th&gt;first_name&lt;/th&gt; &lt;th&gt;Last_name&lt;/th&gt; &lt;th&gt;login&lt;/th&gt; &lt;/tr&gt;"; while($row = mysql_fetch_array($result)) { echo "&lt;tr&gt;"; echo "&lt;td&gt;" . $row['first_name'] . "&lt;/td&gt;"; echo "&lt;td&gt;" . $row['login'] . "&lt;/td&gt;"; echo "&lt;td&gt;"."&lt;input type='checkbox' name='deletingcustomers[]' value=$row['login']}"."&lt;/td&gt;"; echo "&lt;/tr&gt;"; } echo "&lt;/table&gt;"; mysql_close($con); ?&gt; &lt;p class='submit'&gt; &lt;button type='submit' name='dscustomer'&gt;Delete selected&lt;/button&gt; &lt;/p&gt; &lt;/head&gt; &lt;/html&gt; </code></pre> <p>//NOW deletecustomers.php</p> <pre><code>&lt;?php session_start(); $_SESSION['deletingcustomers'] = $_POST['deletingcustomers']; $N = count($_SESSION['deletingcustomers']); $con = mysql_connect("localhost","root",""); if (!$con) die('Could not connect: ' . mysql_error()); mysql_select_db("car_rental_system", $con); if(empty($_SESSION['deletingcustomers'])) { echo("No customers selected"); } else { for ($i=0; $i&lt;$N; $i++) { $sql1="delete from `customer` where login='{$_SESSION[deletingcustomers][$i]}'"; if(mysql_query($sql1,$con)) echo 'executed'; } } ?&gt; </code></pre>
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    1. USAnshul Gupta
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    1. COWelcome to Stack Overflow! Please, don't use `mysql_*` functions to write new code. They are no longer maintained and the community has begun [deprecation process](http://goo.gl/q0gwD). See the [red box](http://goo.gl/OWwr2)? Instead you should learn about [prepared statements](http://goo.gl/orrj0) and use either [PDO](http://goo.gl/TD3xh) or [MySQLi](http://php.net/mysqli). If you can't decide which, [this article](http://goo.gl/YXyWL) will help you. If you pick PDO, [here is good tutorial](http://goo.gl/b2ATO). Also see [Why shouldn't I use mysql functions in PHP?](http://goo.gl/J5jAo)
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      1. USDaedalus
    2. CONot to mention your code is vulnerable to injection attacks.
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    3. COAlso, PDO is REALLY EASY. Thought I might throw that out there.
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      1. USBen
 

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