PHP Checkbox Verification Keeper

Question

I have a comment section handling name/phone/comment/etc. I have a checkbox in this form as well. I get the error exception to produce when the checkbox set is empty. But if boxes are checked, and other areas aren't satisfied, I can't get the boxes to stay checked while the errors are thrown elsewhere and the page is reloaded.

I tried setting the values and $response in the if statements to yes, but if one box is checked, when the page reloads all boxes are checked.

PHP:

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    if (empty($_POST["response"])) {
        $responseErr = "Response is required";
    } else {
        $response = test_input($_POST["response"]);
    }
}


How would you prefer us to respond? Choose all that apply.
<span class="error">* 
    <?php echo $responseErr;?>
</span> 
<br>
<input type="checkbox" name="response" <?php if (isset($response) && $response=="Call") echo "checked";?> value="Call">Call
<input type="checkbox" name="response" <?php if (isset($response) && $response=="Text") echo "checked";?> value="Text">Text
<input type="checkbox" name="response" <?php if (isset($response) && $response=="Email") echo "checked";?> value="Email">E-mail
<br><br>

What will happen if multiple checkboxes are checked? You will get only 1 value in $response. And only 1 checkbox will be checked. — user4035
– user4035, Commented Aug 19, 2015 at 15:44

mfisher91 · Accepted Answer · 2015-08-19 15:49:26Z

1

An alternate solution could be to give each checkbox a unique name (tel-response, email-response, text-response) and then check each individually. Sure, it means slightly more code, but I it is easy to implement and manage later on.

answered Aug 19, 2015 at 15:49

mfisher91

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1 Comment

blackRob4953 Over a year ago

you're right. had to give each item their own unique name and check each individually. Also had to edit the error checking code for each unique check to all entries each time. I'll post the answer

blackRob4953 · Accepted Answer · 2015-08-19 20:57:50Z

Solved:

Someone mentioned I should give each input their own name.

How would you prefer us to respond? Choose all that apply.<span class="error">* <?php echo $responseErr;?></span><br>
                <input type="checkbox" name="callResponse" <?php if (isset($callResponse) && $callResponse=="Yes") echo "checked";?> value="Yes">Call
                <input type="checkbox" name="textResponse" <?php if (isset($textResponse) && $textResponse=="Yes") echo "checked";?> value="Yes">Text
                <input type="checkbox" name="emailResponse" <?php if (isset($emailResponse) && $emailResponse=="Yes") echo "checked";?> value="Yes">E-mail<br><br>

Also, in error checking, you need to test all 3 inputs against each other for an empty entry. Otherwise even if a box is checked, the error message will still display.

if (empty($_POST["callResponse"]) && empty($_POST["textResponse"]) && empty($_POST["emailResponse"])) {
        $responseErr = "Response is required";
    } else {
        $callResponse = test_input($_POST["callResponse"]);
    }

    if (empty($_POST["callResponse"]) && empty($_POST["textResponse"]) && empty($_POST["emailResponse"])) {
        $responseErr = "Response is required";
    } else {
        $textResponse = test_input($_POST["textResponse"]);
    }

    if (empty($_POST["callResponse"]) && empty($_POST["textResponse"]) && empty($_POST["emailResponse"])) {
        $responseErr = "Response is required";
    } else {
        $emailResponse = test_input($_POST["emailResponse"]);
    }

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