如何从php中的复选框中的文本框中获取值

I have 4 checkboxes, one of them is Others have textbox, i want to get all the values that the user checked and if he checked others option to get the values from the textbox associated with Others checkbox.

HTML Code

<div class="row">
    <div class="col-sm-4">
        <label class="Modallabel">Available Products:</label>
    </div>
    <div class="col-sm-8">
        <label id="Pro_chkbox" class="checkbox-inline"><input name="check_list[]" type="checkbox" value="Cacao">Cacao</label>
        <label id="Pro_chkbox" class="checkbox-inline"><input name="check_list[]" type="checkbox" value="Coconuts">Coconuts</label>
        <label id="Pro_chkbox" class="checkbox-inline"><input name="check_list[]" type="checkbox" value="Bananas">Bananas</label><br>
        <label id="Pro_chkbox" class="checkbox-inline"><input name="check_list[]" type="checkbox" id="optcheck" value="Others">Others</label>
        <input type="text" id="Other_pro" name="otherproduct"><br>
        <label id="Note">(Separate Products with commas)</label>
    </div>
</div>

PHP Code

$checked_count = count($_POST['check_list']);

    if ($checked_count > 1)
    { 
        $productlist = implode(', ', $_POST['check_list']);
        echo $productlist;
    }
    elseif ($checked_count == 1)
    { 
        foreach($_POST['check_list'] as $selected) {
            $productlist = $selected;

            //To check if Others checkbox is checked or not to get the values in textbox
            if ($productlist == "Others")
            {
                $productlist = $_POST["otherproduct"];
            }
            echo $productlist;
        }
    }

This will do the trick for you

$checked_count = count($_POST['check_list']);
$productlist = ''; //initialize an empty string for product list
if ($checked_count > 1) //check if multiple check-boxes are checked
{ 
    $productlist = implode(', ', $_POST['check_list']); //implode all checkbox values in list string
    if(in_array('Others', $_POST['check_list'])) { //check if others is checked
        $productlist .= ', '.$_POST['otherproduct']; //con-cat text in text box lined with others in list string 
        $productlist = str_replace('Others,', '', $productlist); //remove others from the list string (skip if you want others to be in your result'
    }
} elseif ($checked_count == 1) {
    $productlist = ($_POST['check_list'][0] == 'Others') ? $_POST['otherproduct'] : $_POST['check_list'][0]; //if only one checkbox is checked then check its value and use the value
}
echo "<br/>".$productlist;

Additionally you may put client side and server side validations to be ensure that you get correct input values from your form.

Also you can use java script to make your form more interactive.