How to fetch arrays with string in php - php

Question

how can i fetch data in an arrays with gives null value if null
here is my data I var_dump($showStatus); I want to print out . $showStatus[0]['title']
string(0) ""
array(2) {
[0]=>
array(7) {
["id"]=>
string(1) "1"
["container_id"]=>
string(1) "3"
["title"]=>
string(51) "waitting"
}
[1]=>
array(7) {
["id"]=>
string(1) "2"
["container_id"]=>
string(1) "3"
["title"]=>
string(72) "getting"
}
}
array(1) {
[0]=>
array(7) {
["id"]=>
string(1) "4"
["container_id"]=>
string(1) "7"
["title"]=>
string(51) "getting"
}
}
The reason that I've string because in my models I want to print "" or NULL when it don't have data here is my models
public function showStatus($id){
$sql = 'SELECT * FROM status WHERE container_id = '.$id;
if($this->query_rows( $sql )) {
return $this->query_rows($sql);
} else {
return "";
}
}
I try to use
foreach ($getListData as $k) {
}
but it said Warning: Invalid argument supplied for foreach()

Answer 1

Try this:
if(!empty($getListData) )
{
foreach ($getListData as $k) {
print_r($k);
}
}
else {
echo "NULL";
}