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    copied!<p>You need the change your <code>options[]</code> to <code>option</code> as it mean you are submitting multiple select with the same name</p> <pre><code>&lt;form method="post" action="array2.php"&gt; &lt;select name="options"&gt; &lt;option value=""&gt;&lt;/option&gt; &lt;option value="1"&gt;1&lt;/option&gt; &lt;option value="2"&gt;2&lt;/option&gt; &lt;option value="3"&gt;3&lt;/option&gt; &lt;option value="4"&gt;4&lt;/option&gt; &lt;option value="5"&gt;5&lt;/option&gt; &lt;option value="6"&gt;6&lt;/option&gt; &lt;option value="7"&gt;7&lt;/option&gt; &lt;option value="8"&gt;8&lt;/option&gt; &lt;option value="9"&gt;9&lt;/option&gt; &lt;option value="10"&gt;10&lt;/option&gt; &lt;/select&gt; &lt;input name="submit" type="submit" value="submit"&gt; &lt;/form&gt; </code></pre> <p>in your <code>array2.php</code> file</p> <pre><code>&lt;?php session_start(); if(isset($_POST['submit'])){ if($_POST['options'] == "" ){ header("Location: error.html"); exit; }else{ $checked = $_POST['options']; $_SESSION['checked'] = $checked; } } ?&gt; </code></pre> <p>if you really need to send <code>options[]</code> </p> <pre><code>&lt;?php session_start(); if(isset($_POST['submit'])){ if(is_array($_POST['options']){ if($_POST['options'][0] == "" ){ header("Location: error.html"); exit; }else{ $checked = $_POST['options'][0]; $_SESSION['checked'] = $checked; } }else{ if($_POST['options'] == "" ){ header("Location: error.html"); exit; }else{ $checked = $_POST['options']; $_SESSION['checked'] = $checked; } } } ?&gt; </code></pre> <p>you can clean this if else as you like</p>
 

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