How to get value post array in codeigniter? - php

Question

How to get value post array in codeigniter?
I have problem when I get value post array and echo the value. How to show post value when submit?
here the error message:
A PHP Error was encountered
Severity: Notice
Message: Uninitialized string offset: 0
Filename: controllers/blablabla
view html:
<?php $i=0; foreach ($doc as $row) { ?>
<label>
<input name="size[<?php echo $i; ?>]" type="checkbox" value="<?php echo $row['doc']; ?>"> <?php echo $row['doc']; ?>
</label>
<?php $i++; } ?>
controller :
$size = $this->input->post('size');
for ($i=0; $i<count($doc); $i++)
{
echo $size[$i];
}

Answer 1

Change the way name of checkbox written as follows,
<?php foreach ($doc as $row) { ?>
<label>
<input name="size[]" type="checkbox" value="<?php echo $row['doc']; ?
>"> <?php echo $row['doc']; ?>
</label>
<?php } ?>
And in post method,
$size_arr = $this->input->post('size');
foreach($size_arr as $v){
echo $v;
}
if for some reason it is not working then check with,
$size_arr = $_POST['size'];
foreach($size_arr as $v){
echo $v;
}
EDIT
One more alternative,
$arr = $this->input->post();
$size_arr = $arr['size'];
foreach($size_arr as $v){
echo $v;
}
Core version,
$arr = $_POST;
$size_arr = $arr['size'];
foreach($size_arr as $v){
echo $v;
}

Answer 2

Your html form code should be like below.
<input name="size[<?php echo $i; ?>]" type="checkbox" value="<?php echo $row['doc']; ?>">
Inside controller your code should be like below.
$size = $this->input->post('size');
foreach($size as $sa)
{
echo $sa;
}

Answer 3

No need to use $i in checkbox name in view file just take an array
View file
<?php foreach ($doc as $row) { ?>
<label>
<input name="size[]" type="checkbox" value="<?php echo $row['doc']; ?>"> <?php echo $row['doc']; ?>
</label>
<?php } ?>
Controller
$countsize = count($this->input->post('size'));
for ($i=0; $i<$countsize ; $i++)
{
echo $this->input->post('size')[$i];
}

Answer 4

This one works for me
In View file
<div id="area_input">
<div id="inputan" class="form-inline">
<div class="form-group col-sm-6">
<input type="text" class="form-control" name="size[]" placeholder="ukuran">
</div>
<div class="form-group col-sm-6">
<input type="text" class="form-control" name="size[]" placeholder="ukuran">
</div>
<div class="form-group col-sm-6">
<input type="text" class="form-control" name="size[]" placeholder="ukuran">
</div>
<div class="form-group col-sm-6">
<input type="text" class="form-control" name="size[]" placeholder="ukuran">
</div>
</div>
</div>
you can repeat input as needed.
in Controller file
$data = array(
'size' => $this->input->post('size'),
);
You can check stucture of array using print_r($data), or print 'em using:
foreach ($data as $key => $value) {
foreach ($value as $detail) {
echo $detail;
echo "<br>";
}
}