PHP mysqli_stmt_get_result() 函式

定義和用法

mysqli_stmt_get_result() 函式接受一個語句物件作為引數，檢索給定語句的結果集（如果有的話），並將其返回。

不能使用此函式關閉持久連線。

語法

mysqli_stmt_get_result($stmt);

引數

返回值

如果執行的語句是 SELECT 語句並且成功，則 PHP mysqli_stmt_get_result() 函式返回一個結果集。在其他情況下，此函式返回FALSE。

PHP 版本

此函式首次出現在 PHP 5 版本中，並在所有後續版本中均有效。

示例

以下示例演示了mysqli_stmt_get_result() 函式（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')");
   print("Record Inserted.....\n");

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

   //Executing the statement
   mysqli_stmt_execute($stmt);

   //Getting the result
   $res = mysqli_stmt_get_result($stmt);

   while ($row = mysqli_fetch_array($res, MYSQLI_NUM)){
      foreach($row as $r){
         print("$r ");
      }
      print("\n");
   }		
		
   //Closing the statement
   mysqli_stmt_close($stmt);

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

這將產生以下結果：

Table Created.....
Record Inserted.....
1 Sikhar Dhawan Delhi India
2 Jonathan Trott CapeTown SouthAfrica

示例

在面向物件風格中，此函式的語法是$stmt->get_result();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';
   print("Records Inserted.....\n");

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

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

   print_r($res);

   //Closing the statement
   $stmt->close();

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

這將產生以下結果：

Table Created.....
Records Inserted.....
mysqli_result Object
(
    [current_field] => 0
    [field_count] => 2
    [lengths] =>
    [num_rows] => 6
    [type] => 0
)