PHP Foreach Arrays and objects

Question

I have an array of objects; running print_r() returns the output below;

Array (     [0] => stdClass Object         (             [sm_id] => 1             [c_id] => 1         )     [1] => stdClass Object         (             [sm_id] => 1             [c_id] => 2         ) ) 

How to loop through the result and access the student class objects?

Answer 1

Use

//$arr should be array as you mentioned as below foreach($arr as $key=>$value){   echo $value->sm_id; } 

OR

//$arr should be array as you mentioned as below foreach($arr as $value){   echo $value->sm_id; } 

Answer 2

Looping over arrays and objects is a pretty common task, and it's good that you're wanting to learn how to do it. Generally speaking you can do a foreach loop which cycles over each member, assigning it a new temporary name, and then lets you handle that particular member via that name:

foreach ($arr as $item) {     echo $item->sm_id; } 

In this example each of our values in the $arr will be accessed in order as $item. So we can print our values directly off of that. We could also include the index if we wanted:

foreach ($arr as $index => $item) {     echo "Item at index {$index} has sm_id value {$item->sm_id}"; }