Laravel如何检查对象为空

Question

我能检查对象是否空？

我试试

dd($result,empty($result->Monday),is_null($result->Monday));

但返回false

这是我的对象

{#1041 ▼
  +"Monday": {#1038}
  +"Tuesday": {#1040 ▶}
  +"Wednesday": {#1058 ▶}
  +"Thursday": {#1060 ▶}
  +"Friday": {#1062 ▶}
  +"Saturday": {#1065 ▶}
  +"Sunday": {#1067 ▶}
}

Answer 1

在将对象发送到视图之前，我给了值null。然后去检查刀片上的null

{#1041 ▼
  +"Monday": Null
  +"Tuesday": {#1040 ▶}
  +"Wednesday": {#1058 ▶}
  +"Thursday": {#1060 ▶}
  +"Friday": {#1062 ▶}
  +"Saturday": {#1065 ▶}
  +"Sunday": {#1067 ▶}
}