Validating That At Least One Checkbox Is Selected Using Codeigniter Validation Class?

May 3, 2011

I have a codeigniter form that contains two checkboxes:

<input type="checkbox" checked="checked" id="box1" name="box1" /> <label for="box1">Box One</label>
<input type="checkbox" checked="checked" id="box2" name="box2" /> <label for="box2">Box Two</label>

I want to use CI form validation to check that at least one checkbox is select (more than one can be selected). I'm having problems working out how to do it with the form validation libaray. I tried a callback but this only passes the value of one checkbox. Whats the best way to validate?

There are also other fields on the form, so I need to maintain the state of the checkboxes on validation.

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Validating Only Selected Characters In String Php (phone Number Validation)?

Feb 1, 2011

i have a string containing alpha numeric characters.The script should return (echo) "true" if the string contains only 0-9, - , + , or the word NA (NA should be validated only if it contain no other characters and should echo false if the string contain any other character along with "NA"), The script should echo "false" if the string contains any other characters other than the specified characters.. How can i make this possible??

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Oct 1, 2010

I have a class that uses the __set magic method. One of the properties for the class can only be set with a certain range of string values, the best example I can think of is the mysql datatype ENUM('value_one','value_two','value_three').

Would I place conditional statements within the __set method to distinguish between which property is being set and whether the value is valid for that property?

Are large switch statements inside a __set method considered sloppy practice, is their a better way of producing the desired results?

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Jun 16, 2011

Since you can't do this: $this->form_validation->set_rules($VARIABLE, 'Some text', 'required');, is it possible to do something similar to:

$variable = $this->input->post('some_input');
$variable = some_function_which_manipulates_the_input($variable);
$this->form_validation->set_rules($i_want_the_variable_here, '', '');

to manipulate the input before validation check? Adding a custom callback seems a little clumsy to me since one method could do several things (not necessarily targeted at X validation field).

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Select Only One Checkbox And Show Input Field If Checkbox Selected

May 7, 2011

I have a form with "Yes" and "No" as two checkboxes. These come in unselected at first. I'd like the user to only select one of these with the option to deselect their choice if they don't want to make a decision (which is why I didn't use radio buttons). Selecting Yes should deselect No and vice versa. I'm not sure how to do this. I'm using PHP (codeigniter), Javascript and JQuery. Secondly, after either Yes or No is selected, an input field needs to be displayed. I've got this setup but it toggles on the "onclick" action, which means selecting Yes twice shows and hides the input field! I want the input field to show if Yes or No are selected and disappear if the both Yes and No are unselected.

[code]...

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Make Checkbox 2 Unavailable If Checkbox 1 Selected

Jul 19, 2010

I have a page with 10 checkbox-selected items to be used in determining what to display on the subsequent page. The two checkboxes, Continents & Countries, can be chosen, but you can have one or the other. How do I make it such that if one is selected, the other is not and vice-versa? HTML Code:

<td column width=426><h4><input type="checkbox" name="Continents" value="1">Continents</h4></td><tr>
<td column width=426><h4><input type="checkbox" name="Countries" value="2">Countries</h4></td><tr>

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Validating Checkbox Array In A Form?

Mar 20, 2011

Im creating a simple quiz where some of the questions are checkbox because there is more than one correct answer.  What I would like to be able to do, is run an if statement to check if, say for example, options 1 and 5 out of 6 have been selected, then award the point. However the point is only awarded is both options are selected.

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In Symfony - Add A 'selected' Class To The Currently Selected Page In Navigation?

Mar 24, 2010

My navigation is written in the layout.php template It looks like this:

<ul id="nav">
<li><a href="item1">Item 1</a></li>
<li><a href="item1">Item 2</a></li>
<li><a href="item1">Item 3</a></li>
<li><a href="item1">Item 4</a></li>
</ul>

What is the best way to get a class="current" on the currently selected page?

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Use Only Certain Validation Set For Validating Data In CakePHP?

Aug 28, 2010

I was trying to validate my User model data and I came upon this problem.

Say i have the following validation rules, stored in $validate variable:

var $validate=array(
"username" => array(
"usernameCheckForRegister" => array(
"rule" => ...,

[Code]....

In the UsersController controller, I have two actions: register() and login().The problem is, how do I validate the username field in the register() action using ONLY the usernameCheckForRegister rule, and how do I validate the username field in the login() action, using the other rule, usernameCheckForLogin? Is there any behaviour or method in CakePHP which allows me to choose which set of rules to apply to a form field when validating?

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Validation - Simplify The Checking/validating Logic?

May 1, 2011

Here is a sample code of how to write something based on email, session key, and message. I use most of the code in error handling, like this:First, I need check null, then, the length, session, connection with db, lastly, the actually result.... ....It is very ignoring, and the code become very long, how can I simify this?

if(checkNullExisit($aEmail, $aSessionKey, $aMessage)){
//Null params detect
return;

[code]...

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Validation - Validating Date Range Search?

Jun 9, 2011

Im going to implement a search function in mySQL for an application Im building,
the user types [for now, later will be a calendar picker] start date and end date,and click searchif (start day > end day), THEN errorif (start month > end month), THEN errorOk so far, but when having into account thatif (start day > end day) && (start month < end month), THEN searchif (start Month > end Month) && (start year < end year), THEN searchI dont worry about leap years, I will loop all months to 31 days, because if the day is in the db, it will fetch it, other wise, it will go to 31 and return nothing as there is no day,Im using varchar for my dates (no timestamp), as they are imported from json [iOSOk, hope to make sense,here the code,

<?PHP
$start = $_POST['start_date'];
$end = $_POST['end_date'];

[code]...

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Validating Arrays With Callbacks In Codeigniter?

Dec 7, 2010

I'm running an array of user input through form validation utilizing a custom callback as a rule. Each of the submitted data values needs to pass this custom callback. If they don't pass, I want to set a unique error message for whichever values are invalid.

It seems, however, that I can only assign one error message to each rule. What is the best way to assign an error to any value being run through a callback that fails so that each value can maintain its own error?

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Validating If String Is A FQDN ( Codeigniter )?

Jan 11, 2011

I'm trying to use form_validation to validate a domain name using a custom run:

function fqdn($str)
{
$CI =& get_instance();
$CI->form_validation->set_message('fqdn','The %s is not a valid domain name.');
$re1='((?:[a-z][a-z\.\d\-]+)\.(?:[a-z][a-z\-]+))(?![\w\.])';
if ($c=preg_match_all ("/".$re1."/is", $str, $matches)){
return TRUE;

[Code]...

This works relatively well apart from I dont want it to return true if there are @ anywhere in the address and also where there are leading or trailing How would I go about changing the code to match. Also am I going about this all wrong should there be something else I should be doing so I can make sure that the ext are correct and not some made up garbage.

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Making Validation Class - Normal Class - Abstract Class - Interface - Polymorphism

Jul 15, 2010

im am making a php validation class with sub classes that extend it, eg, mobile, suburb, credit_card, ect so, the idea is you can call

$validation = new Validation('mobile');
$valid = $validation->validate($number);
$validation->type('suburb');
$valid2 = $validation->validate($suburb);

now my idea for doing this is having

[Code].......

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Form Validation - Validating Select Drop Down Array?

Jun 4, 2011

I have the following to generate a state drop down on a form:

$states = array('State', 'Alabama', 'Alaska', 'Arizona', 'Arkansas');
echo "<select name='choose_state'>
[code]...

edit: validate in php, this is for a form collecting user information before posting to a db I tried using in_array and got stuck trying to exclude the default value

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Validating Single Form Field With CodeIgniter?

Mar 19, 2010

Is there a quick way to validate a single form field with CodeIgniter to see whether or not that field matches a set of rules? There's the $this->form_validation->run();, but that will return either TRUE or FALSE for the whole form, and that's just not what I'm looking for. For example, if I only wanted to check if the email was valid, checking the whole form is not going to get me the result I'm looking for.

I looked through the documentation but couldn't find anything like $this->form_validation->run(); that accepts one parameter and returns TRUE or FALSE if it's valid.

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How To Give A Value To Non Selected Checkbox

Apr 25, 2006

I would like to get a value for a non selected checkbox in a form.

Imagine my form contains :

<input type='checkbox' name='t[0]' value=&#391;'>
<input type='checkbox' name='t[1]' value=&#391;'>

When I analyse $t, if first checkbox is not selected and second is, I have :
$t[0] has no value. $t[1] equals 1
and count($t) equals 1

I would like to find a way to get :
$t[0] equals 0. $t[1] equals 1
and count($t) equals 2

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May 31, 2007

I created a list of check box,if i select a indvidual check box,then it must go to the indvidual pages on the basis of selection. how to code for this.

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Feb 15, 2006

i have a code that should trap that only 1 checkbox should be selected but i don't know how?

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Get Selected Index Of Checkbox?

Jan 10, 2011

I managed to add dynamic checkboxes(ie., if i add data in database checkbox will automatically generated in another form Coding Create table trole(id,role,isadmin)

<?php
$sql="select id,role from trole where isadmin='0'";
$result=mysql_query($sql);
$count=mysql_num_rows($result);
$role='';
$ID='';
$role1='';
$i = 0;
[Code]....

Example outputs 2(id)student(role), 3(id)faculty(role), 4(id)others Now my problem is if i select id 2 and 4 it should add 2&4 in database but i',m getting default value 4 for every data (ex: if i select 2&3 it should add 2&3 but i'm getting as 4 for every one.)

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Check If Checkbox Are Selected Or Not?

May 14, 2011

i was making a form and wondering. when u have a check box. how to check if its checked or not before sending it value to database.? and in database its type will be a tiny int.right?

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Checkbox Selected After Submit?

Jan 5, 2010

how I can show to the user what checkboxes he selected, after he clicks the submit button.

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Apr 22, 2011

I want to delete values that has been selected using checkbox. I am using this script though its not giving any error but its not working

for checkbox
<input name="checkbox[]" type="checkbox" value="<?=$row['s_id']?>">
for delete button
<input type="submit" name="delete" value="Delete">
for query
if(isset($_POST['delete']))
{.............

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Deleting Records Selected By Checkbox?

Apr 22, 2011

Delete values selected using checkbox

I want to delete records that has been selected using Checkbox

Checkbox code

<input name="checkbox[]" type="checkbox" value="<?=$row[s_id]?>" id="checkbox[]">
ON delete button
if($_POST['delete'])
{
$cnt=array();

[Code]....

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Jun 21, 2010

I want to show checkbox selected in edit section if there have value in DB. i m using cakephp 1.3 version .in edit section how i will show valued checkbox true.

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Disable Submit Until Checkbox Is Selected

Sep 10, 2009

I have done a search but maybe I'm not putting the right terms in - I can't find what I'm looking for. I have attached my files. The index file contains a form. The form consists of just 6 checkboxes and the submit button. If someone makes a selection the submit button calls my process.php file and sends the browser to the vacancies.html page. If someone tries to click the button without selecting any of the checkboxes, I want it to say: "Please make a selection before continuing".

I've had a go (I'm a bit of a noob so don't laugh!). This is what I put in:

PHP Code:

if($THEPRINT=="" and $GUARDIANPRINT=="" and $THEONLINE=="" and $GUARDIANONLINE=="" and $JOBSACUK=="" and $OTHER=="")
echo ('Please make a selection before continuing'); 

This kind of works but it throws up a horrible warning message underneath which I think is something to do with my redirect to the vacancies.html page.

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Dec 11, 2006

I have multiple checkboxes on my page and i want to access only the selected checkbox on the next page
Bye

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Oct 1, 2010

how can i send the value of the selected checkbox?

while($rs=mysql_fetch_assoc($qr))
{
echo"<input type='checkbox' name='id[]' value='". $rs['id'] ."' />" . $rs['name'];
}

i actually did it easily in normal form because normaly the php retrieve only the selected checkboxes. but when i try to use basic ajax, i found it very hard.

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Jun 17, 2007

There is a 3 table: I want to list all the product groups but to be checked in checkbox only what choose the user.

If from outside (choos.php?tt_reg_id=1) user is nr 1 then in listed checkboxes need to be checked only those checkboxes what the user nr 1 choose / but listed the all product groups. Code:

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Dec 9, 2009

From my code below, how would i show which check boxes have been checked and which radio buttons selected?

: [Select]<?php
include_once("config.php");
include_once("functions.php");
// Check user logged in already:
checkLoggedIn("yes");
[code]....

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Jun 4, 2010

I have a page which includes of several checkboxes based on a table rows. Eg, if my users table has 30 users, there're going to be 30 checkboxes. I am sure you probably hav guessed by now that if the user selected all 30 users, and delete, they all will be deleted in the database. I am having difficulties in how to uniquely identify each checkbox and get the value from each checkbox because I am thinking of storing user_id from the database in each checkbox as value. To my understanding, if one checkbox is selected and i get the value "on" or if there's value in that checkbox i get the value of it in php file but there should be some sort of like arrays to actually loop through the $_POST["inputCheckboxName"] and get selected checkbox's value or something like that ?

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Jan 10, 2010

I had multiple checkbox which is generated using loop. After submitting the form I want to get the names of the selected individual checkbox to store it in database as id. Code i used for generating checkbox in loop:

while($arrayRow = mysql_fetch_assoc($rsrcResult))
{
$strA = $arrayRow["area_id"];
$strB = $arrayRow["area_name"];
echo "<div class="area_check"><input type="checkbox" id="covarea[] " />$strB</input></div>";
}

This code I used for getting names for it didnt worked. It only returned state of check box as ON

while (list ($key,$val) = @each ($box))
{
$aid=$val;
echo $aid;
}

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Inserting Selected Checkbox Values Into Database?

Aug 13, 2008

how to create DB table,inserting values for checkboxes....

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>shopping</title>
</head>
[Code].....

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Select All Values Of Checkbox When SelectAll Is Selected?

Mar 23, 2011

I am trying to get all the id values of the selected checkboxes. When the user hits "selectAll", all the checkboxes are checked, but I just can't get their individual value. Any idea what I am doing wrong?

Here is the jQuery:

$(".selectAll").unbind("click").click(function(e){//needs work here
var bool = $(this).is(":checked"); //gets whether selected or not
var list = new Array();
$(function(){
$("input:checkbox").attr("checked", bool);

[Code]...

In my case, if 'bool == true', then all the checkboxes will ALWAYS be checked, so that's why using just .delID, instead of .delID :checked worked for me.

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Jul 1, 2010

I am working in the confines of a CMS system, which defines certain fields which can be used to make forms for use within the application in PHP.

The list function has the signature:

function inputBasicList ($id,$value = "",$list = array(), $displayName = NULL, $displayLabel = true)

I use it thusly:

$theinput = new inputBasicList("type",$therecord["paymenttype"],array("Cash"=>"cash","Credit"=>"credit"), "Payment Type");

[Code]....

I use it thusly

$theinput = new inputCheckbox("paid", $therecord["paid"], "Paid");

What I would like to do, is if the list is set to credit instead of the default cash, to automatically set the checkbox to true/checked.

I don´t think the CMS system allows a way to do this using any built in functions, and am wary of adding any javascript.

Is such a thing possible with just PHP?

Otherwise, how complicated would the javascript have to be to do such a thing?

edit:

The generated HTML from the phpBMS forms

<p class="big"><label for="type" class="important">Payment Type</label>
<br />
<select name="type" id="type" class="important" >
<option value="cash" >Cash</option>

[Code]....

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Nov 19, 2009

in fact i have a table through i am selecting different records each records will be printed with the checkbox what i want to insert checked fields in the database following is the code which i am using for printing the each field with check box

<?
$con = mysql_connect("localhost","","");
if(!$con)
{
die('Could not connect: ' . mysql_error());

[Code]....

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Apr 24, 2011

I am building a library system for an assignment. I want to provide a functionality that registers (adds) all transactions to defferent databases. I am stuck on how to add a selected row (selected by a checkbox) to the database and make sure that 2 users cannot update the same record at the same time.

bellow is my code:

Code: [Select]<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=windows-1250">
<meta name="generator" content="PSPad editor, www.pspad.com">
<title>Web Works DD - Web Development & Software Solutions</title>

[Code]....

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Oct 6, 2010

I have an audio mix submitting form on my website. The first part of the form takes the details from the user and inserts a new row in the first table 'mix', auto incrementing to generate a mix_id primary key. The second part then uses a series of check boxes  to select which genres the mix contains and a foreach for the resulting array to insert, into the 2nd table 'genres_for_mix', a new row for each genre id (foreign key for the genres table) that is selected and the mix_id that it concerns.

Now I'm starting to think this is a bad way to do this because:

1. I don't know how to echo this out when a user edit's the mix to make all the relevant checkboxes selected.

2. When a user deselects a choice, it would be quite long winded to delete the nessesary row.

So instead I'm thinking that it would be much wiser to user the serialise functions to put the array into the database However, I still don't know how to make the right checkboxes selected when I echo out the edit form. Do I use something like inarray()? If so how? Also, it's really important that I can query the database for mixes that are associated with a specific genre. Without unserialising the array and therefore echo'ing out all the results, I don't know how to query this. Would I just use a 'WHERE genre_field LIKE 'genre_id'?

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May 25, 2005

Been scratchin my head on this one. I have to do simple checkbox validation without JS and I thought the following code inside of my form would give me the checkbox value. However when I click submit no value is displayed for the $box variable.

$box=$_POST['BoxValue'];
echo $box; //no value gets displayed after submit pressed.

<form>
<input type="checkbox" name="BoxValue" value=1>
</form> // form is submitted to $ _SERVER['PhP_SELF'].

This is the only checkbox in the form. The other elements of the form display with no issues so am I missing something with checkboxes? I am only concerned that the user clicked the checkbox. Again this is the only form element that doesn't post to the page.

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Feb 16, 2006

Am working on a beginners project and I have problems with my checkboxes. These checkboxes are an array and I need to validate them. - Students are supposed to choose 2 courses per week.

- However Financial Management is taught for a whole week hence if a student chooses this course in week 1, they are NOT allowed to choose another course in that particular week. Code:

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Jul 30, 2007

how to store the selected checkbox values in a variable or an array?

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JQuery To Show External Web Page If > 2 Checkbox Selected?

May 12, 2011

What I'm trying to do is when user click the 2 checkboxes it will pop up new window web page. I got the solution for 1 checkbox but i have hard time figuring out on how to do in both. I tried or || or and && but i didnt work. Here my code:

<?php
// when user clicked no checkbox
if(isset($_POST['bus']) &&
[code]....

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Feb 27, 2011

i tried to display data in page in row. then, i want to insert the row that selected to insert into new table. but it doesn't work. the row that have been selected doesn't insert into database.. coding is just like this.

<script LANGUAGE="Javascript">
<!--
<!-- Begin
function CheckAll(chk)
{
for (i = 0; i < chk.length; i++)
chk[i].checked = true ;

[Code]...

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Apr 15, 2009

i'm doing an online questionnanires system. i'm using loop to display multiple question created in a page. Can anyone tel me how to use checkbox to display only selected loop questions in a next page and save all those selected questions as 1 field in database?

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May 16, 2011

why this doesn't work?

Code: [Select]<?php

$form = "<form action='test.php' method='POST'><input type='text' name='test' /> <input type='submit'>";

echo $form;

$name = $_POST['test'];[code]....

Also, when it comes to validating POST data that's input via a form and retrieving it is it secure to set a variable for the Post i.e.Code: [Select]$name = $_POST['test']; or is more secure to pass Code: [Select] $_POST['test'] straight into the validation? It just occurs to me if you pull the post into a variable then you're inviting insecure code into your script. Though i am a complete noob at this so might be talking rubbish!

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