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+--- Thread: How to create IF->ELSE with input->post() with checkbox array? (/showthread.php?tid=66222)
How to create IF->ELSE with input->post() with checkbox array? - rubens - 09-22-2016
Hi guys.
I have a form that has several checkbox with the same "name" attribute. I'm trying to do a conditional to know if any checkbox is checked or not, but I can not make it work. See how it is:
PHP Code:
// View (have foreach checkboxes with the name 'service[]', no other input/select/etc )
<input type = "checkbox" name = "service[]" value = "$numeric_id">
// Controller
$item = $this->input->post ('service', true);
if($item){ //Run only when submit the form
if ($item == NULL) {
// function if no checkbox is checked
// return to the same page with redirect(current_url());
}else{
// function if at least one checkbox was marked
// return to the same page with redirect(current_url());
}
}else{
//show the view with the checkboxes and submit form button
}
The problem is that when i don't select any checkbox the input->post("service") is not NULL, not as empty or equals "" (empty).
PHP Code:
if($item==NULL) not work
if($item==FALSE) not work
if($item=='') or if($item==' ') not work
if(empty($item)) not work
if(!isset($item)) not work
if(!is_array($item)) or (is_array($item)) not work
foreach($item as $key) or foreach($item as $key => $value) not work
Any idea what's wrong?
RE: How to create IF->ELSE with input->post() with checkbox array? - Wouter60 - 09-23-2016
PHP Code:
if($item){ //Run only when submit the form
if ($item == NULL) {
This will never work. If you haven't selected any checkbox, $item will be empty, so the line with "if ($item == NULL) {" will not be executed.
I assume that your form has a submit button, probably with the name "submit".
PHP Code:
$submit = $this->input->post('submit');
if ($submit) {
$items = $this->input->post('service');
if (! empty($items)) {
foreach($items as $item) {
//process the checkboxes that where checked
}
}
else {
// redirect
}
}
RE: How to create IF->ELSE with input->post() with checkbox array? - rubens - 09-23-2016
(09-23-2016, 03:51 AM)Wouter60 Wrote:PHP Code:if($item){ //Run only when submit the form
if ($item == NULL) {
This will never work. If you haven't selected any checkbox, $item will be empty, so the line with "if ($item == NULL) {" will not be executed.
I assume that your form has a submit button, probably with the name "submit".
PHP Code:$submit = $this->input->post('submit');
if ($submit) {
$items = $this->input->post('service');
if (! empty($items)) {
foreach($items as $item) {
//process the checkboxes that where checked
}
}
else {
// redirect
}
}
Thanks man, this work fine to me.
