echo数组单元的值不全解决方案

echo数组单元的值不全
数组的为

Array

(

    [title] => 初一上册数学测试题

    [id] => 6

    [subject] => 14

    [parts] => [["单选","100",1]]

    [topic] => [["1","100"]]

    [json] => [["6","
小红做一道数学题“ ';color:rgb(0,0,0);font-weight:bold;font-size:14px;font-family:

    [#39;'>两个多项式 'font-family:Times New Roman'>A