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POText box limited to array contents
 

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    <p>I currently have a drop down box than when one of the options is selected it will echo-</p> <p><code>"Your Favourite Car Is (option)</code></p> <p>What I need to do now is change this so its a text box but the user can only type in one of the options within the array and if another one was chosen it would say <code>you cannot have this as one of the choices</code> and it would also be able to type in more than one so theoretically it could echo-</p> <p><code>"Your Favourite Car is Mazda, Nissan, Renault!"</code></p> <p>Here is the code i have now for the drop box that i have working.</p> <pre><code>&lt;form method="post"&gt; &lt;div id="dropdown"&gt; &lt;?php if(isset($_POST['cars'])) { $mycar=$_POST['cars']; } else { $mycar=""; } $array1 = array('Volkswagen' , 'Renault' , 'Land Rover'); echo' &lt;select name="cars" onchange="this.form.submit()"&gt;'; foreach($array1 as $cars) { ?&gt; &lt;option value="&lt;?php echo $cars; ?&gt;" &lt;?php if($mycar==$cars) echo " "selected='selected'"; ?&gt; &gt;&lt;?php echo $cars; ?&gt;&lt;/option&gt; &lt;?php } echo'&lt;/select&gt; &lt;/div&gt;&lt;/form&gt;'; ?&gt; &lt;div id="result"&gt; &lt;?php echo "Your favourite car is $mycar"; ?&gt; &lt;/div&gt; </code></pre> <p>EDIT: I have attempted this and what i currently have always echo's "this car isnt among the selection" and nothing else and nothing i enter into the text box seems to effect this</p> <p>here is the code i have </p> <pre><code>&lt;?php $cars = array("Volkswagen","Renault","Land Rover"); ?&gt; &lt;form action="array.php" method="post"&gt; &lt;center&gt; &lt;input type="text" name="cars" id="cars" /&gt; &lt;input type="submit" /&gt; &lt;/center&gt; &lt;?php if (in_array($_POST, $cars)) { echo "Your Favourite Car is $_POST"; } else { echo "This car is not among the selection"; } ?&gt; &lt;/form&gt; </code></pre>
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