Im trying to create a form using PHP and I cant seem to find a tutorial on what I need so thought Id ask on here.
I have a multiple checkbox option on my page...
<li>
<label>What service are you enquiring about?</label>
<input type="checkbox" value="Static guarding" name="service">Static guarding<br>
<input type="checkbox" value="Mobile Patrols" name="service">Mobile Patrols<br>
<input type="checkbox" value="Alarm response escorting" name="service">Alarm response escorting<br>
<input type="checkbox" value="Alarm response/ Keyholding" name="service">Alarm response/ Keyholding<br>
<input type="checkbox" value="Other" name="service">Other<input type="hidden" value="Other" name="service"></span>
</li>
I'm not sure however how to collect all checkbox values using POST method?
if i use
$service = $_POST['service'];
I only get 'other' returned
Name the fields like service[] instead of service, then you'll be able to access it as array. After that, you can apply regular functions to arrays:
Check if a certain value was selected:
if (in_array("Other", $_POST['service'])) { /* Other was selected */}
Get a single newline-separated string with all selected options:
echo implode("\n", $_POST['service']);
Loop through all selected checkboxes:
foreach ($_POST['service'] as $service) {
echo "You selected: $service <br>";
}
Currently it's just catching your last hidden input. Why do you have that hidden input there at all? If you want to gather information if the "Other" box is checked, then you have to hide the
<input type="text" name="other" style="display:none;"/>
and you can show it with javascript when the "Other" box is checked. Something like that.
Just make the name attribute service[]
<li>
<label>What service are you enquiring about?</label>
<input type="checkbox" value="Static guarding" name="service[]">Static guarding<br />
<input type="checkbox" value="Mobile Patrols" name="service[]">Mobile Patrols<br />
<input type="checkbox" value="Alarm response escorting" name="service[]">Alarm response escorting<br />
<input type="checkbox" value="Alarm response/ Keyholding" name="service[]">Alarm response/ Keyholding<br />
<input type="checkbox" value="Other" name="service[]">Other</span>
</li>
Then in your PHP you can access it like so
$service = $_POST['service'];
echo $service[0]; // Output will be the value of the first selected checkbox
echo $service[1]; // Output will be the value of the second selected checkbox
print_r($service); //Output will be an array of values of the selected checkboxes
etc...
<input type="checkbox" value="Other" name="service">Other<input type="hidden" value="Other" name="service"></span>
You've got a hidden input field with the same name as the checkbox. "later" fields with the same name as an earlier one will overwrite the previous field's values. This means that your form, as posted above, will ALWAYS submit service=Other.
Given the phrasing of your question in the html, it sounds more like you'd want a radio button, which allows only ONE of a group of same-name fields to be selected. Checkboxes are an "AND" situation, radio buttons correspond to "OR"
Related
I have a form where members details are entered,
If i click submit it takes all values and stores in db. But if i click edit it is retrieving all values except radio button value.
So, how to fetch the radio button value while editing the page?
This is my code where i try to fetch the value of radio button it fetches value but it is not fetching the value in radio button
<td>Gender</td>
<td><input type="radio" name="gender" value="<?php echo $gender; ?>" />Male
<input type="radio" name="gender" id="female" value="<?php echo $gender; ?>" >Female
</td>
When you send data through PHP and HTML you just get it like this :
$var = $_GET['field']; //if you used GET method
But it works with everything, not only text. The fact is just you have to name your radiobutons and get their values :
<input type="radio" name="radio1" /><input type="radio" name="radio2" /> and after in PHP you have to know which one was checked, basically (I'm not sure but...) it will work like that :
if ($_GET['radio1'] == 'on' /*on is valable for checkboxes*/) { /* your stuff here */ }
If I am correct, I think what you are doing incorrectly is you need to name all of your radio buttons the same with seperate values.
i.e.
<input type="radio" name="difficulty" value="Easy">
<input type="radio" name="difficulty" value="Medium">
<input type="radio" name="difficulty" value="Hard">
Now $_POST['difficulty'] should grab the data of the radio.
How do we dynamically display the sum of all the values of check boxes that have been checked in php.
Its basically like a checkout in a shopping cart.Each item that is to be checked, has a value and the final amount(in the same page at the bottom) should be the sum of rates of all the items that have been checked(without refreshing).
I may need to use AJAX. Can anyone give a simple sample code please
For the checkboxes, you need to make them into an array, say for instance:
<input type="checkbox" name="items[]" id="items[]" value="25" /><br />
<input type="checkbox" name="items[]" id="items[]" value="40" /><br />
<input type="checkbox" name="items[]" id="items[]" value="12" /><br />
... <!-- as many as you want -->
<input type="checkbox" name="items[]" id="items[]" value="20" /><br />
On the PHP side you could then handle it like so...(NOTE: It will come into PHP as an array)
$items = $_POST["items"];
//it's an array -- feel free to do a var_dump($items) to see its content
//to sum you could even do an $total_amount = array_sum($items);
//but i would advise cleaning up the values first
And yes, you can achieve the same if you submit the form using AJAX (e.g. via jQuery)
Happy coding :)
I have a form such as the one below:
<input type="checkbox" name="type" value="wash"><label>Wash</label><br>
<input type="checkbox" name="type" value="no wash"><label>No Wash</label><br>
<label>Other (Specify)</label><br>
<input name="type"><br>
If you notice for all three i am using "type" as the input name. The point being that the user will be given two options, if none of the two options apply to them they should enter a value in other. Now in the database i have the field type, so if they selected the first two and entered a value in the field or if they only wrote a value in the field i still want it to to be part of the type field. So how can i make it so that if they select the input field it should also insert in "type".
Do you mean something like this?
HTML:
<input type="checkbox" name="type[]" value="wash"/><label>Wash</label>
<input type="checkbox" name="type[]" value="no_wash"/><label>No wash</label>
Other type:
<input type="text" name="other_type"/>
PHP:
if (!empty($_REQUEST['other_type']))
$_REQUEST['type'][] = $_REQUEST['other_type'];
var_dump($_REQUEST['type']);
First of all you should better use radio buttons instead of checkboxes.
Then you could do the following
<input type="radio" name="type" value="wash"/><label>Wash</label>
<input type="radio" name="type" value="no_wash"/><label>No wash</label>
<input type="radio" name="type" value="other"/><label>Other</label>
<input type="text" name="other_type"/>
Your PHP would then look like this:
if ($_REQUEST["type"] == "wash"){
echo "Wash me please";
}else if ($_REQUEST["type"] == "no_wash"){
echo "no wash";
}else if ($_REQUEST["type"] == "other"){
echo "you want to ".$_REQUEST["other_type"];
}
If you use JS you could even disable the textbox unless the user selects the third option.
Edit: If I got your comment right it would be the easiest like this:
<input type="checkbox" name="wash_me"/><label>Wash your car?</label>
<input type="text" name="other"/><label>What else can we do for you?</label>
PHP
if (isset($_REQUEST["wash_me"]){
echo "wash my car please";
}
if (strlen($_REQUEST["other"]) != 0){
echo "and do the following: ".$_REQUEST["other"];
}
I know how to it with text inputs. I can easily put a php script in its value, but doing it with input groups seems different. How can I mantain the values of group inputs if the submission of the form fails?
To re-mark a checkbox or radio button as checked, you use this code:
<input type="checkbox" name="foo" id="foo" checked="checked"/>
The key is checked="checked".
If you are using groups of checkboxes, make sure the name of the field ends with brackets [], like this:
<input type="checkbox" name="foo[]" id="foo_1" value="1" checked="checked"/>
<input type="checkbox" name="foo[]" id="foo_2" value="2" checked="checked"/>
Then your $_REQUEST['foo'] variable will automatically be an array of checked values. You can use in_array to see if a particular checkbox was checked.
Update based on comment
Here's how I would set it:
<input type="checkbox" name="foo[]" id="foo_1" value="1" <?= (isset($_POST['foo'] && in_array('1', $_POST['foo'])) ? 'check="checked"' : '' ?>/>
For single items (like radios), use this:
<input type="radio" name="foo" id="foo" value="1" <?= isset($_POST['radio]) ? 'check="checked"' : '' ?>/>
Hope that helps.
Update 2:
Also, make sure you escape user input! Your example should look like this:
<input type="text" name="username" value="<?php if(isset($_POST['username']) echo htmlspecialchars($_POST['username']);?>">
Always assume the user is trying to hack your system, always escape user input!
Print the " checked" attribute for radio buttons and checkbox input tags, or the " selected" attribute for dropdown option tags.
I have an HTML form with radio buttons in a loop with same name like this:
Post Id 1:<input type="radio" name="radiob[]" id="radio" value="Yes" />
Post Id 2:<input type="radio" name="radiob[]" id="radio" value="Yes" />
I want to save radio button selected post into database but I want the user to select only one post. When I put post id with radio button name like radiob[2], the user can select multiple radio buttons so how can the user only check one radio button and the form send both the radio button id and value?
Thanks.
Use the ID as value, and you don't need to use radiob[] because only one value will be transmitted to the server anyway.
Post Id 1:<input type="radio" name="radiob" value="1" />
Post Id 2:<input type="radio" name="radiob" value="2" />
IDs should not be the same for 2 elements and the values should represent be what you need to store anyway:
<label for="radio_1">Post Id 1</label>:<input type="radio" name="radiob" id="radio_1" value="1" />
<label for="radio_2">Post Id 2</label>:<input type="radio" name="radiob" id="radio_2" value="2" />
You would then pick up the variables in php using either the get or post array (depending upon your submission method:
$value = $_POST['radiob']; // or $_GET['radiob']