Can anyone explain, how this cat array is getting the id and name?
foreach ($all_categories as $menu) { ?>
<input type="checkbox" id="cat_<?php echo $menu->id; ?>" value="<?php echo $menu->id.'_'.$menu->name; ?>" name="cat[]">
..
..
}
and i can get the id and name in controller,by using like below. It is working totally fine. My question is, how id went to cat array in position 0,and name position 1?
$res_arr=explode('_',$value);
$cat_id=$res_arr[0];
$cat_name=$res_arr[1];
The explode function returns an array either it finds the delimiter or not. You gave a string to explode and asked it to split the string wherever it sees '_'. So in your case there was only one '_' and explode sliced the string into two pieces and placed them in an array respectively at [0] and [1].
Edit:
<?php
foreach ($all_categories as $menu) {
print "<input type=\"checkbox\" id=\"cat_".$menu->id."\" value=\"".$menu->id."_".$menu->name."\" name=\"cat[]\"/>";
}
?>
php short tag is not recommended Link