Question

i have a php file which stores a variable, and i need to create a submit form which passes this variable.

So the code of the current file is:

if(isset($_POST['Submit'])) {
    echo "<pre>";
    $checked = implode(',', $_POST['checkbox']);
    echo $checked;
}

I have to insert the submit form and on click it goes to another php file, i need to get there the $checked variable.. how can i store this variable?..

Thanks you!

Answer 1

The principle of POSTing is that you can send all the data to the next .php page.

<?php
    if ($checked == 1) {
        $checked = 'checked="checked"';
    }
    else {
        $checked = '';
    }
?>

<form action="POST" method="target_file.php">
    <input type="hidden" name="variableA" value="Something I want target_file.php to know" />
    <input type="hidden" name="variableB" value="Something else I want target_file.php to know" />
    <input type="checkbox" name="gender" value="male" <?php echo $checked ?>" />
</form>

Your target_file.php:

echo "Here I am :), variableA: ".$_POST['variableA'];
echo "Here I am :), variableB: ".$_POST['variableB'];
echo "Here I am :), My gender is: ".$_POST['gender'];

Also, don’t trust on checking your field values that are send through the $_POST. Check what every value is and if it meets certain criteria before sub-statements may be executed.