將數組添加到數組PHP

Question

假設我有一組字符串，其中包含一個字符的分隔符，如何將它作爲數組添加到數組中？

private fileTextHeaders = array(); 
public function addHeaders($longStringHeaders){ 

    $parts = explode("@", $longStringHeaders); 

    foreach ($parts as $part){ 
     $this->fileTextHeaders[] = $part; 
    } 

    print_r($this->fileTextHeaders);  
} 

我有下面的代碼，但結果是

addHeaders("test@yes@no"); 
array ([0]=>test, [1]=>yes, [2]=no) 

我的目標是

array(
    array(test), 
    array(yes), 
    array(no) 
) 

Answer 1

foreach ($parts as $part){ 
    $this->fileTextHeaders[] = [$part]; 
}