PHP mysqli_fetch_object() 函式

定義和用法

PHP 結果物件（類 mysqli_result）表示 MySQL 結果，由 SELECT 或 DESCRIBE 或 EXPLAIN 查詢返回。

mysqli_fetch_object() 函式接受結果物件作為引數，並檢索給定結果中當前行的內容，並將它們作為物件返回。

語法

mysqli_fetch_object($result, [$class_name, $params]);

引數

返回值

PHP mysqli_fetch_object() 函式返回一個物件（具有字串屬性），其中包含結果物件的當前行。如果不再有行，則此函式返回 NULL。

PHP 版本

此函式首次在 PHP 5 版本中引入，並在所有後續版本中均有效。

示例

以下示例演示了 mysqli_fetch_object() 函式（以過程式風格）的用法：

<?php
   $con = mysqli_connect("localhost", "root", "password", "mydb");

   mysqli_query($con, "CREATE TABLE myplayers(ID INT, First_Name VARCHAR(255), Last_Name VARCHAR(255), Place_Of_Birth VARCHAR(255), Country VARCHAR(255))");
   print("Table Created.....\n");
   mysqli_query($con, "INSERT INTO myplayers values(1, 'Sikhar', 'Dhawan', 'Delhi', 'India')");
   mysqli_query($con, "INSERT INTO myplayers values(2, 'Jonathan', 'Trott', 'CapeTown', 'SouthAfrica')");
   mysqli_query($con, "INSERT INTO myplayers values(3, 'Kumara', 'Sangakkara', 'Matale', 'Srilanka')");
   print("Record Inserted.....\n");

   //Retrieving the contents of the table
   $res = mysqli_query($con, "SELECT * FROM myplayers");

   //Fetching all the rows as objects
   while($obj = mysqli_fetch_object($res)){
      print("ID: ".$obj->ID."\n");
      print("First_Name: ".$obj->First_Name."\n");
      print("Last_Name: ".$obj->Last_Name."\n");
      print("Place_Of_Birth: ".$obj->Place_Of_Birth."\n");
      print("Country: ".$obj->Country."\n");
   }
   //Closing the statement
   mysqli_free_result($res);

   //Closing the connection
   mysqli_close($con);
?>

這將產生以下結果：

Table Created.....
Record Inserted.....
ID: 1
First_Name: Sikhar
Last_Name: Dhawan
Place_Of_Birth: Delhi
Country: India
ID: 2
First_Name: Jonathan
Last_Name: Trott
Place_Of_Birth: CapeTown
Country: SouthAfrica
ID: 3
First_Name: Kumara
Last_Name: Sangakkara
Place_Of_Birth: Matale
Country: Srilanka

示例

在面向物件風格中，此函式的語法為 $result->fetch_object(); 以下是此函式在面向物件風格中的示例：

<?php
   //Creating a connection
   $con = new mysqli("localhost", "root", "password", "mydb");

   $con -> query("CREATE TABLE Test(Name VARCHAR(255), Age INT)");
   $con -> query("insert into Test values('Raju', 25),('Rahman', 30),('Sarmista', 27)");
   print("Table Created.....\n");

   $stmt = $con -> prepare( "SELECT * FROM Test WHERE Name in(?, ?)");
   $stmt -> bind_param("ss", $name1, $name2);
   $name1 = 'Raju';
   $name2 = 'Rahman';

   //Executing the statement
   $stmt->execute();

   //Retrieving the result
   $result = $stmt->get_result();

   //Fetching all the rows as arrays
   while($obj = $result->fetch_object()){	
      print("Name: ".$obj->Name."\n");
      print("Age: ".$obj->Age."\n");
   }
   //Closing the statement
   $stmt->close();

   //Closing the connection
   $con->close();
?>

這將產生以下結果：

Table Created.....
Name: Raju
Age: 25
Name: Rahman
Age: 30