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Why does using $_POST['auswahl'] not work as expected in the PHP script?

Using $_POST['auswahl'] may not work as expected in the PHP script if the form input field with the name 'auswahl' is not properly set up or if there is a typo in the name attribute. To solve this issue, ensure that the form method is set to POST, the input field has the correct name attribute ('auswahl' in this case), and that the form is submitted correctly.

php 
<form method="post">
    <input type="text" name="auswahl">
    <input type="submit" value="Submit">
</form>

<?php
if(isset($_POST['auswahl'])){
    $auswahl = $_POST['auswahl'];
    // Use $auswahl variable in your script
}
?>

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