thinkphp问题，取不出数据是我写错了吗？

Question

这是$vo dump出来的数据
$vo.more.thumbnail 可以正常取出thumbnail图片
我想取出photos的图片,用这个方法报错提示photos未定义

    <foreach $vo['more']['photos'] as $photo> 
      {$photo.url}
    </foreach>

2017-08-29 18:22

这是dump $vo得到的数据

object(app\portal\model\PortalPostModel)#113 (32) {
  ["type":protected] => array(1) {
    ["more"] => string(5) "array"
  }
  ["autoWriteTimestamp":protected] => bool(true)
  ["connection":protected] => array(0) {
  }
  ["parent":protected] => NULL
  ["query":protected] => NULL
  ["name":protected] => string(10) "PortalPost"
  ["table":protected] => NULL
  ["class":protected] => string(32) "app\portal\model\PortalPostModel"
  ["error":protected] => NULL
  ["validate":protected] => NULL
  ["pk":protected] => NULL
  ["field":protected] => array(0) {
  }
  ["readonly":protected] => array(0) {
  }
  ["visible":protected] => array(0) {
  }
  ["hidden":protected] => array(0) {
  }
  ["append":protected] => array(0) {
  }
  ["data":protected] => array(27) {
    ["id"] => int(91)
    ["parent_id"] => int(0)
    ["post_type"] => int(1)
    ["post_format"] => int(1)
    ["user_id"] => int(1)
    ["post_status"] => int(1)
    ["comment_status"] => int(1)
    ["is_top"] => int(0)
    ["recommended"] => int(0)
    ["post_hits"] => int(4)
    ["post_like"] => int(0)
    ["comment_count"] => int(0)
    ["create_time"] => int(1503374642)
    ["update_time"] => int(1503991165)
    ["published_time"] => int(1503374580)
    ["delete_time"] => int(0)
    ["post_title"] => string(12) "微赢天下"
    ["post_keywords"] => string(0) ""
    ["post_excerpt"] => string(12) "微赢天下"
    ["post_source"] => string(0) ""
    ["post_content"] => string(31) "<p>微赢天下</p>"
    ["post_content_filtered"] => NULL
    ["more"] => string(185) "{"thumbnail":"portal\/20170822\/72192792291f28b8d62605b1dda87270.jpg","template":"","photos":[{"url":"portal\/20170829\/76bcf5d289f68d83422ee9f9f5564355.jpg","name":"未标题-1.jpg"}]}"
    ["user_login"] => string(5) "admin"
    ["user_nickname"] => string(5) "admin"
    ["user_email"] => string(17) "[e-mail]"
    ["category_id"] => int(9)
  }
  ["origin":protected] => array(27) {
    ["id"] => int(91)
    ["parent_id"] => int(0)
    ["post_type"] => int(1)
    ["post_format"] => int(1)
    ["user_id"] => int(1)
    ["post_status"] => int(1)
    ["comment_status"] => int(1)
    ["is_top"] => int(0)
    ["recommended"] => int(0)
    ["post_hits"] => int(4)
    ["post_like"] => int(0)
    ["comment_count"] => int(0)
    ["create_time"] => int(1503374642)
    ["update_time"] => int(1503991165)
    ["published_time"] => int(1503374580)
    ["delete_time"] => int(0)
    ["post_title"] => string(12) "微赢天下"
    ["post_keywords"] => string(0) ""
    ["post_excerpt"] => string(12) "微赢天下"
    ["post_source"] => string(0) ""
    ["post_content"] => string(31) "<p>微赢天下</p>"
    ["post_content_filtered"] => NULL
    ["more"] => string(185) "{"thumbnail":"portal\/20170822\/72192792291f28b8d62605b1dda87270.jpg","template":"","photos":[{"url":"portal\/20170829\/76bcf5d289f68d83422ee9f9f5564355.jpg","name":"未标题-1.jpg"}]}"
    ["user_login"] => string(5) "admin"
    ["user_nickname"] => string(5) "admin"
    ["user_email"] => string(17) "[e-mail]"
    ["category_id"] => int(9)
  }
  ["relation":protected] => array(0) {
  }
  ["auto":protected] => array(0) {
  }
  ["insert":protected] => array(0) {
  }
  ["update":protected] => array(0) {
  }
  ["createTime":protected] => string(11) "create_time"
  ["updateTime":protected] => string(11) "update_time"
  ["dateFormat":protected] => bool(false)
  ["isUpdate":protected] => bool(true)
  ["updateWhere":protected] => NULL
  ["failException":protected] => bool(false)
  ["useGlobalScope":protected] => bool(true)
  ["batchValidate":protected] => bool(false)
  ["resultSetType":protected] => string(10) "collection"
  ["relationWrite":protected] => NULL
}

Answer 1

photos数据先 json_decode 转成数组，再循环输出

Answer 2

你的$vo['more'] 是一个json形式的字符串，先转成数组。
$more ＝ json_decode($vo['more'],true);

<foreach $more['photos'] as $photo> 
  {$photo.url}
</foreach>