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How to get value Multi-dimensional array - PHP

for example, print_r ($ rows); is assumed to have the following array and value.

Array ( [dept] => その他 ) 1
Array ( [dept] => 管理部 ) 1
Array ( [dept] => 管理部 ) 1

その他
管理部
管理部

I want to extract only the value of a multidimensional array. First, I got the key of the array.

foreach($rows as $value){
echo print_r($value)  ."<br />" ;
}

than, dept as the key, that of multidimensional array sees each value

foreach ($rows as $value) { 
echo $value['dept']  ."<br />" ;
}

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