PHP関数はデータを返しません。 ERRORを表示します

Question

include("include/session.php"); 

    class createcountdown 
     { 
     public $start; 
     public $howlong; 
     public function get(){ 
     $this->start = $session->start; // $session->start Returns data from Mysql: 0000-00-00 00:00:00 
     $this->howlong = $session->howlong; // $session->howlong Returns data from Mysql: 300 
     $diff = $this->start-3600 + $this->howlong-time(); 

     if($this->start + $this->howlong > time()){ 
      list($h,$min,$sec)=explode(":",date("H:i:s",$diff)); 
      $sum = $this->start + $this->howlong-time(); 
      return $sum; 
     } 
    } 

    $obj = new createcountdown(); 
    $result = $obj->get(); 
    echo $result; 

Answer 1

を示しています。

Answer 2

ifの後に括弧がないことが問題のようです。get()です。

list($h,$min,$sec)=explode(":",date("H:i:s",$diff));の後に中括弧を追加すると、コードはエラーなく実行されます。

Answer 3

あなたはこれを試すことができ

include("include/session.php"); 

    class createcountdown 
     { 
     public $start; 
     public $howlong; 
     public function get(){ 
     $this->start = $session->start; // $session->start Returns data from Mysql: 0000-00-00 00:00:00 
     $this->howlong = $session->howlong; // $session->howlong Returns data from Mysql: 300 
     $diff = $this->start-3600 + $this->howlong-time(); 

     if($this->start + $this->howlong > time()){ 
      list($h,$min,$sec)=explode(":",date("H:i:s",$diff)); 
      $sum = $this->start + $this->howlong-time(); 
      return $sum; 
     } 
    } 
} 

    $obj = new createcountdown(); 
    $result = $obj->get(); 
    echo $result; 

Answer 4

をmissiongクラス}オペレータを閉じてください：

include("include/session.php"); 

    class createcountdown 
     { 
     public $start; 
     public $howlong; 
     public $session; // add 
     public function get(){ 
     // $this->start = $session->start; // $session->start Returns data from Mysql: 0000-00-00 00:00:00 
     $this->start = $this->session->start; // change here 
     // $this->howlong = $session->howlong; // $session->howlong Returns data from Mysql: 300 
     $this->howlong = $this->session->howlong; // change here 

     $diff = $this->start-3600 + $this->howlong-time(); 

     if($this->start + $this->howlong > time()){ 
      list($h,$min,$sec)=explode(":",date("H:i:s",$diff)); 
      $sum = $this->start + $this->howlong-time(); 
      return $sum; 
     } 
    } 
} 

    $obj = new createcountdown(); 
    $obj->session = $session // which is globaly define 
    $result = $obj->get(); 
    echo $result;