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Date format form validation in codeigniter?

We have used dd/mm/yy date format and set the validation rules according to format using callback function.

Set_ruels for date field using “form validation” library .

Syntax:-

$this->form_validation->set_rules('date','DOB','callback_checkDateFormat');


You can also use your own function in the place of “checkDateFormat” to set format of date.

function checkDateFormat($date) {
if (preg_match("/[0-31]{2}\/[0-12]{2}\/[0-9]{4}/", $date)) {
if(checkdate(substr($date, 3, 2), substr($date, 0, 2), substr($date, 6, 4)))
return true;
else
return false;
} else {
return false;
}
}

Load “form_validation” library in constructor.

$this->load->library('form_validation');

Setup helper function that helps you to load form tags. Open “application\config\autoload.php” and set the ‘form’ in helper array.

$autoload['helper'] = array('form','url');

Controller File : date_controller.php

<?php
class Date_controller extends CI_Controller {
public function __construct() {
parent::__construct();
$this->load->library('form_validation');
}

// Show form in view page i.e date_view.php
public function show() {
$this->load->view("date_view");
}
// When user submit data on view page, Then this function set_ruels in "form_validation" according to "date",and show on again view page.
public function submit(){
$name = $this->input->post('u_name');
$input = $this->input->post('date');
$this->form_validation->set_rules('date','DOB','callback_checkDateFormat');

if ($this->form_validation->run() == FALSE) {
echo "<script type='text/javascript'>
alert('Please Enter correct values in dd/mm/yyyy Format');
</script>";
$this->load->view('date_view');
} else {
$data = array('name'=> $name, 'DOB'=>$input);
$this->load->view('date_view',$data);
}
}

// Check date format, if input date is valid return TRUE else returned FALSE.
function checkDateFormat($date) {
if (preg_match("/[0-31]{2}\/[0-12]{2}\/[0-9]{4}/", $date)) {
if(checkdate(substr($date, 3, 2), substr($date, 0, 2), substr($date, 6, 4)))
return true;
else
return false;
} else {
return false;
}
}
}
?>

View File : date_view.php

File name : date_view.php

<html>
<head>
<title>Codelgniter form validation date</title>
<link rel="stylesheet" type="text/css" href="<?php echo base_url(); ?>css/style.css">
<link href='http://fonts.googleapis.com/css?family=Source+Sans+Pro|Open+Sans+Condensed:300|Raleway' rel='stylesheet' type='text/css'>
</head>
<body>
<div class="main">
<div id="content">
<h3 id='form_head'>Codelgniter form validation date</h3><br/>
<hr>
<div id="form_input">
<?php

// Open form and set url for submit form
echo form_open('date_controller/submit');

// Show Name Field in View Page
echo form_label('Name :');
$data = array(
'id' => 'name_id',
'name' => 'u_name',
'placeholder' => 'Please Enter User Name',
'class' => 'input_box',
'required' => ''
);
echo form_input($data);
echo "<br/><br/>";

// Show Date Field in View Page
echo form_label('DOB:');
$date = array(
'type' => 'text',
'id' => 'validate_dd_id',
'name' => 'date',
'class' => 'input_box',
'placeholder' => 'dd/mm/yyyy',
'required' => ''
);
echo form_input($date);
?>
</div>

<div id="form_button">
<?php

// Show Update Field in View Page
$data = array(
'type' => 'submit',
'value'=> 'Submit',
'class'=> 'submit'
);
echo form_submit($data); ?>
</div>
<?php echo form_close();?>
<?php

// When user submit CORRECT VALUES.
if(isset($name) && isset($DOB)){
echo "<div id='content_result'>";
echo "<h3 id='result_id'>You have submitted these values</h3><br/><hr>";
echo "<div id='result_show'>";
echo "<label class='label_output'>Entered Name : </label>".$name;
echo"<br/><br/>";
echo "<label class='label_output'>Entered Date: </label>".$DOB;
}
?>
</div>
</div>
</body>
</html>

CSS File : style.css

File name : index.php

body {
font-family: 'Raleway', sans-serif;
}
.main
{
width: 1015px;
position: absolute;
top: 10%;
left: 20%;
}
#form_head
{
text-align: center;
background-color: #FEFFED;
height: 66px;
margin: 0 0 -29px 0;
padding-top: 35px;
border-radius: 8px 8px 0 0;
color: rgb(97, 94, 94);
}
#content {
position: absolute;
width: 450px;
height: 350px;
border: 2px solid gray;
border-radius: 10px;
}
#content_result{
position: absolute;
width: 450px;
height: 192px;
border: 2px solid gray;
border-radius: 10px;
margin-left: 559px;
margin-top: -262px;
}
#form_input
{
margin-left: 50px;
margin-top: 36px;
}
label
{
margin-right: 6px;
font-weight: bold;
}

#form_button{
padding: 0 21px 15px 15px;
position: absolute;
bottom: 0px;
width: 414px;
background-color: #FEFFED;
border-radius: 0px 0px 8px 8px;
border-top: 1px solid #9A9A9A;
}
.submit{
font-size: 16px;
background: linear-gradient(#ffbc00 5%, #ffdd7f 100%);
border: 1px solid #e5a900;
color: #4E4D4B;
font-weight: bold;
cursor: pointer;
width: 300px;
border-radius: 5px;
padding: 10px 0;
outline: none;
margin-top: 20px;
margin-left: 15%;
}
.submit:hover{
background: linear-gradient(#ffdd7f 5%, #ffbc00 100%);
}
.label_output
{
color:#4A85AB;
margin-left: 10px;
}
#result_id
{
text-align: center;
background-color: #FCD6F4;
height: 47px;
margin: 0 0 -29px 0;
padding-top: 12px;
border-radius: 8px 8px 0 0;
color: rgb(97, 94, 94);
}
#result_show
{
margin-top: 35px;
margin-left: 45px;
}
.input_box{
height:40px;
width:240px;
padding:20px;
border-radius:3px;
background-color:#FEFFED;
}
input#date_id {
margin-left: 10px;
}
input#name_id {
margin-left: 53px;
}
input#validate_dd_id {
margin-left: 65px;
}





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