在PHP中創建關聯數組

我是編程初學者；我在從現有關聯數組創建關聯數組時遇到問題

<?php
    $arr = array( 
            array(
                "question"=>"I get irritated easily.",
                "answer"=>"1"
            ),
            array(
                "question"=>"I spend time reflecting on things.",
                "answer"=>"1"
            ),
            array(
                "question"=>"I am quiet around strangers.",
                "answer"=>"1"
            ),
            array(
                "question"=>"I make people feel at ease.",
                "answer"=>"1"
            ),
            array(
                "question"=>"I am exacting in my work.",
                "answer"=>"1"
            ),
            array(
                "question"=>"I often feel blue.",
                "answer"=>"3"
            ),
            array(
                "question"=>"I am full of ideas.",
                "answer"=>"4"
            )
        );
     
     
     $answer_array = array();
     foreach( $arr as $questions ) {
       $answer_array['text']=$questions['answer'];
     }
     print_r( $answer_array );
?>

我想要以下格式的$answer_array：{@111}（“text”=>“1，1，1”）

但我沒有得到正確的答案，因為它以以下方式顯示：

Array
(
    [text] => 4
)

這是因為它在迭代時覆蓋所有其他值，并且只存儲最后一個值。我需要存儲上面提到的所有值。請告訴我哪里錯了。