I want to display results outside of the function
By sending the discount value outside the function
<?php
function product_discount($price)
{
if($price<5000)
{
$dis=$price*5/100;
}
else
{
$dis=$price*10/100;
}
$total=$price-$dis;
echo "ส่วนลดที่ได้::". $dis."บาท"."</br>";
echo "ราคาสุทธิ::". $total."บาท"."</br>";
}
$price1=product_discount(1000);
$price2=product_discount(5000);
?>
<?php
function product_discount($price)
{
if($price<5000)
{
$dis=$price*5/100;
}
else
{
$dis=$price*10/100;
}
return $dis;
}
$price = 5000;
$discount = product_discount($price);
$total = $price-$discount;
echo "ส่วนลดที่ได้::". $discount."บาท"."</br>";
echo "ราคาสุทธิ::". $total."บาท"."</br>";
?>
A function can only return 1 variable.
If you want to return multiple values from a function, you can use an array.
function product_discount($price):array
{
if($price<5000)
{
$dis=$price*5/100;
}
else
{
$dis=$price*10/100;
}
$total=$price-$dis;
return ['dis' => $dis, 'total' => $total];
}
$arr = product_discount(1000);
echo "dis:". $arr['dis']."</br>";
echo "total:". $arr['total']."</br>";
// alternatively
$price2 = product_discount(5000)['total'];
Related
So I want to assign a value to $jab using
$jabatan->jabatannya('profile',$nama);
but when I echo $jab I got '1' instead the 'value of data'.
public function jabatannya($table, $nama) {
$data=$this->_db->getAll23($table, $nama);
if(empty($data)) {
return false;
}
else {
return true;
}
}
// then refers to
public function getAll23($table, $nama) {
$query1="SELECT kdjurusan FROM $table WHERE username = '$nama' ";
$result=$this->con->query($query1);
return $result;
}
//my codes
<form action="pebimbingan.php" method="post">
<?php $nama = Session::get('username');
$jab = $jabatan->jabatannya('profile',$nama);
echo $jab;
echo $nama;
?>
</form>
Return $name not true here
public function jabatannya($table,$nama){
$data = $this->_db->getAll23($table,$nama);
if(empty($data)){
return false;//if $data is empty return false, which is blank
}else{
return $data;//return $data
}
}
Check with print_r($jab); instead echo $jab;
I'm trying to load a website url from a textfile, then unset this string from an array and pick a random website from the array.
But once I try to access the array from my function the array would return NULL, does someone know where my mistake is located at?
My current code looks like the following:
<?php
$activeFile = 'activeSite.txt';
$sites = array(
'http://wwww.google.com',
'http://www.ebay.com',
'http://www.icloud.com',
'http://www.hackforums.net',
'http://www.randomsite.com'
);
function getActiveSite($file)
{
$activeSite = file_get_contents($file, true);
return $activeSite;
}
function unsetActiveSite($activeSite)
{
if(($key = array_search($activeSite, $sites)) !== false)
{
unset($sites[$key]);
return true;
}
else
{
return false;
}
}
function updateActiveSite($activeFile)
{
$activeWebsite = getActiveSite($activeFile);
if(!empty($activeWebsite))
{
$unsetActive = unsetActiveSite($activeWebsite);
if($unsetActive == true)
{
$randomSite = $sites[array_rand($sites)];
return $randomSite;
}
else
{
echo 'Could not unset the active website.';
}
}
else
{
echo $activeWebsite . ' did not contain any active website.';
}
}
$result = updateActiveSite($activeFile);
echo $result;
?>
$sites is not avaliable in unsetActiveSite function you need to create a function called "getSites" which return the $sites array and use it in unsetActiveSite
function getSites(){
$sites = [
'http://wwww.google.com',
'http://www.ebay.com',
'http://www.icloud.com',
'http://www.hackforums.net',
'http://www.randomsite.com'
];
return $sites;
}
function unsetActiveSite($activeSite)
{
$sites = getSites();
if(($key = array_search($activeSite, $sites)) !== false)
{
unset($sites[$key]);
return true;
}
else
{
return false;
}
}
i am trying to create a readmore function in codeigniter where the readmore link will be linked to a controller which would show all the data about that particular id....i am kind of confused on how to go about it... i tried...
<?php
$research_detail_url = site_url()."/research/research_details";
//echo json_encode($research)
if($research)
{
foreach ($research as $_research) {
$author = $_research->author;
$content = $_research->content;
$dsubmitted = $_research->dsubmitted;
echo "<div class='menu-collapse'> <h5>$author</h5>";
echo "<p>";
echo "<span class='support_text'>$content <span><br />";
echo "<span class='support_text'>$dsubmitted <span><br />";
echo "<a href='$research_detail_url' target='_blank' style='text-decoration:underline; color:#0088cc;'>
read more » </a>";
echo "</p> </div>";
}
}
?>
but i seem not be getting any results...i need help...
and this is my controller function.....
public function research_details($id='')
{
if(!$id)
{
echo "Project Id required";
return;
}
$_result = $this->projects_model->get_project($id);
if($_result)
{// success in fetching data hurray
$result['projects'] = $_result;
$users_ids = $this->users_model->get_user_ids(); //return available user id's
$groups_ids = $this->groups_model->get_group_ids(); //return available group id's
//echo json_encode($users_ids);
//echo json_encode($groups_ids);
$group_record = $this->map_names_to_ids($users_ids , $groups_ids );
$result['group_record'] = $group_record;
//load the view
$this->load->view('__includes__/header');
$this->load->view('__includes__/boostrap_responsive');
$this->load->view('projects/project_panel', $result);
$this->load->view('__includes__/footer_scripts');
$this->load->view('__includes__/wijmo_file_jquery');
$this->load->view('__includes__/footer');
}
else
{
exit("An Error occured in fetching the requested project");
}
}
and this is my model.....
<?php
class research_model extends CI_Model {
function add()
{
$this->db->insert('research',$_POST);
if($this->db->_error_number())
{
return $this->db->_error_number();
}
}
function update($article_id, $data_fields = NULL){
if($data_fields == NULL)
{
$this->db->where("article_id =".$article_id);
$this->db->update('research',$_POST);
}
else
{
$this->db->where("article_id =".$article_id);
$this->db->update('research',$data_fields);
}
$is_error = $this->db->_error_number();
if($is_error){
echo $is_error;
}
return TRUE;
}
function delete($id){
$this->db->where("article_id =".$id);
return $this->db->delete('research');
}
//return the research with this id
function get_research($id){
$this->db->where("article_id =".$id);
$query = $this->db->get('research');
if ($query->num_rows() > 0){
return $query->row_array();
}
else
echo $this->db->_error_message();
return FALSE;
}
//return the available research in the table
function get_research_all(){
$query = $this->db->get('research');
if ($query->num_rows() > 0)
{
foreach($query->result() as $row)
{
$result[] = $row;
}
return $result;
}
}
}
and my entire controller.....
<?php
class Research extends Public_Controller
{
function __construct()
{
parent::__construct();
$this->load->model('research_model');
}
function index()
{
if($this->ion_auth->is_admin())
{
$result = $this->research_model->get_research_all();
$data = array(
'main_content' => 'research/index',
'research' => $result
);
$this->load->view("loader", $data);
}
else
{
redirect('home');
}
}//END INDEX
// public view
function current()
{
$result = $this->research_model->get_research_all();
$data = array('research' => $result);
$this->load->view('__includes__/header');
$this->load->view('__includes__/navbar');
$this->load->view('research/current', $data);
$this->load->view('__includes__/footer');
}
function add()
{
if($this->ion_auth->is_admin())
{
$this->load->view("loader",array('main_content'=>"research/add_research"));
}
}//END ADD
function edit($id='')
{
if(! $id)
{
echo "research Id required";
return;
}
$result = $this->research_model->get_research($id);
if( ! $result)
{
echo "Nothing to edit";
return;
}
$result['main_content'] = "research/add_research";
$this->load->view("loader",$result);
}//END EDIT
function delete($id='')
{
if(! $id)
{
echo "Id required";
return;
}
$this->research_model->delete($id);
$this->get_research();
}//END DELETE
function submit($id='')
{
//validate form [perform validation server-side to make sure of fields]
$this->load->library('form_validation');
$this->form_validation->set_rules('author', 'Author', 'trim|required|min_length[4]');
if ($this->form_validation->run() == FALSE){
//ajax data array
$data = array(
'server_validation' => validation_errors()
);
echo str_replace('\\/', '/', json_encode($data));
}
else{
if($id){
$result = $this->research_model->update($id);
$content = "article has been UPDATED successfully";
//$retArr["content"] = $content;
//echo json_encode($retArr);
}
else{
$result = $this->research_model->add();
$content = "article has been CREATED successfully";
//$retArr["content"] = $content;
//echo json_encode($retArr);
}
//if duplicate key
if($result == 1062){
//ajax data array
$data = array();
$data['is_valid'] = 0;
echo json_encode($data);
}else{
//ajax data array
$data = array(
'is_valid' => 1,
'content' => $content
);
echo json_encode($data);
}
}//end ELSE form valid
}//END SUBMIT
public function research_details($id='')
{
if(!$id)
{
echo "Project Id required";
return;
}
$_result = $this->research_model->get_research($id);
if($_result)
{// success in fetching data hurray
$result['article'] = $_result;
//load the view
$this->load->view('__includes__/header');
$this->load->view('__includes__/boostrap_responsive');
$this->load->view('research/research_details', $Aresult);
$this->load->view('__includes__/footer_scripts');
$this->load->view('__includes__/wijmo_file_jquery');
$this->load->view('__includes__/footer');
}
else
{
exit("An Error occured in fetching the requested project");
}
}//END EDIT
}
?>
my public controller
<?php
abstract class Public_Controller extends CI_Controller
{
public $about_data;
function __construct()
{
parent::__construct();
//Making This variable availale for the whole site
$this->load->model('about_model');
$this->load->model('captcha_model');
//get your data
$this->about_data = $this->about_model->get_abouts();
}
}
?>
I see a couple of problems:
In your view, you are not closing the span tags. You need
</span>
In your view, you are creating the link, but you are not
including an ID, which you need in your controller. What I mean by this is the following:
First,you create this $research_detail_url = site_url()."/research/research_details";.
Then echo "<a href='$research_detail_url' target='_blank' style=''>read more</a>";
As you can see, your URL does not have an ID when created. What you should do is something like this: $research_detail_url = site_url()."/research/research_details/31"; where 31 is a random ID. You need to come up with the right ID needed in order to pass it to your controller. Your controller is currently assigning a blank ID since none is being passed which is why you end up with a result of "Project Id required"
i create function called empty_fields but i can't figure out, to make it work..
<?php
function empty_fields($field_name)
{
if(!empty($order[$field_name]))
{
$output = "<li>Indigofera - " . $order[$field_name] . "Kg</li>";
} else { $output = null; }
return $output;
}
to display in html
<?php empty_fields('indigofera'); ?>
Change
if(!empty($order['$field_name'])){
to
if(!empty($order[$field_name])){
'$field_name' does not evaluate to anything and it will search for
key '$field_name' in the $orders array everytime, hence will not work.
Hope it works.
If you use $order as a global variable, use:
function empty_fields($field_name)
{
global $order;
$output = null;
if(!empty($order[$field_name]))
{
$output = "<li>Indigofera - " . $order[$field_name] . "Kg</li>";
}
return $output;
}
and use it:
<?php echo empty_fields('indigofera'); ?>
EDIT: the OOP way:
class Orders
{
private $order = null;
public function get_order()
{
$this->order = //....
}
public function empty_fields($field_name)
{
if(!isset($this->order) || empty($order[$field_name])) return;
return "<li>Indigofera - " . $order[$field_name] . "Kg</li>";
}
}
and use it:
<?php
$orders = new Orders();
$orders->get_order();
echo $orders->empty_fields("indigofera");
I have made a template system but the {var} doesnt output the worth.
It just output {var}.
Here is my template class:
<?php
class Template {
public $assignedValues = array();
public $tpl;
function __construct($_path = '')
{
if(!empty($_path))
{
if(file_exists($_path))
{
$this->tpl = file_get_contents($_path);
}
else
{
echo 'Error: No template found. (code 25)';
}
}
}
function assign($_searchString, $_replaceString)
{
if(!empty($_searchString))
{
$this->assignedValues[strtoupper($_searchString)] = $_replaceString;
}
}
function show()
{
if(count($this->assignedValues) > 0)
{
foreach ($this->assignedValues as $key => $value)
{
$this->tpl = str_replace('{'.$key.'}', $value, $this->tpl);
}
}
echo $this->tpl;
}
}
?>
And here is what I execute on the index:
<?php
require_once('inc/classes/class.template.php');
define('PATH', 'tpl');
//new object
$template = new Template(PATH.'/test.tpl.html');
//assign values
$template->assign('title', 'Yupa');
$template->assign('about', 'Hello!');
//show the page
$template->show();
?>
I really need some help, if you can help I'd would be very grateful.
Instead of line:
$this->assignedValues[strtoupper($_searchString)] = $_replaceString;
You should have:
$this->assignedValues[$_searchString] = $_replaceString;
and it will work.
Of course I assume that inside your template file you have content:
{title} {about}
You should change
$this->assignedValues[strtoupper($_searchString)] = $_replaceString;
to this:
$this->assignedValues["{".$_searchString . "}"] = $_replaceString ;
this will only replace your keywords with values.