(isset $_POST['submit']) condition is always false

Question

I wrote the following code in a page named : addSection.php

<from class="mainSettingsForm add" action="" method="post">
    <h1>Add new section</h1>
    <p>
        <label>new section</label>
        <input type="text" name="section_name" placeholder="section title">
        <label>section status</label>
        <select name="sectionStatus">
            <option value="active">active</option>
            <option value="disActive">disActive</option>
        </select>
    </p>
    <p>
        <label>section location</label>
        <select name="sectionLocation">
            <option value="Side">Side</option>
            <option value="Body">Body</option>
        </select>
    </p>
    <label>section description</label>
    <textarea name="sectionDesc" placeholder="Section description"></textarea>
    <input class="btn-primary" type="submit" name="submit" value="Add">


</from>

and the following code in a page named : Sections.php

<h2><a href="?page=sections&action=add">Add new section</a></h2>
<?php

if ($_POST OR @$_GET['action'])
{
    if (isset($_GET['action']) AND $_GET['action']=="add")
    {
        include 'views/addSection.php';
        if (isset($_POST['submit'])&&$_POST['submit']=="Add")
            echo 'ok';

    }

}
else
{
   include 'views/sections.php';
}

?>

this statement if (isset($_POST['submit'])&&$_POST['submit']=="Add") echo 'ok'; is never be executed because it always gives false value , how can make isset($POST['submit']) statement gives true value to execute the condition ?

Answer 1

Your statement can never be true because the second IF statement is only for $_GET variables and then you try to access $_POST inside it. You can't have a GET and a POST at the same time.

You also have a few typos - $_GET['action'] will be "Add" not "add" and you have <from> instead of <form> in your HTML.

if ( isset( $_POST['submit'] ) && $_POST['submit'] == "Add" ){
    echo "this is a POST and submit is add";
} elseif ( isset( $_GET['action']) && $_GET['action'] == "Add" ){
    echo "this is a GET and submit is add";
} else {
    include 'views/sections.php';
}

Answer 2

Please try my code. This will help you to understand what are you passing. I also fix the form tag - as @Hobo Sapiens suggested.

<?php print_r($_REQUEST);?>
<form class="mainSettingsForm add" action="" method="post">
    <h1>Add new section</h1>
    <p>
        <label>new section</label>
        <input type="text" name="section_name" placeholder="section title">
        <label>section status</label>
        <select name="sectionStatus">
            <option value="active">active</option>
            <option value="disActive">disActive</option>
        </select>
    </p>
    <p>
        <label>section location</label>
        <select name="sectionLocation">
            <option value="Side">Side</option>
            <option value="Body">Body</option>
        </select>
    </p>
    <label>section description</label>
    <textarea name="sectionDesc" placeholder="Section description"></textarea>
    <input class="btn-primary" type="submit" name="submit" value="Add">


</form>