PHP mysqli_stmt_store_result() 函式

定義和用法

mysqli_stmt_store_result() 函式接受一個語句物件作為引數，如果執行的是 SELECT、SHOW 或 DESCRIBE 語句，則將該語句的結果集儲存在本地。

語法

mysqli_stmt_store_result($stmt);

引數

返回值

PHP mysqli_stmt_attr_get() 函式返回一個布林值，成功時為 TRUE，失敗時為 FALSE。

PHP 版本

此函式首次引入 PHP 5 版本，並在所有後續版本中均有效。

示例

以下示例演示了 mysqli_stmt_store_result() 函式（過程式風格）的用法 -

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

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

   //Reading records
   $stmt = mysqli_prepare($con, "SELECT * FROM Test");

   //Executing the statement
   mysqli_stmt_execute($stmt);

   //Storing the result
   mysqli_stmt_store_result($stmt);

   //Number of rows
   $count = mysqli_stmt_num_rows($stmt);
   print("Number of rows in the table: ".$count."\n");

   //Closing the statement
   mysqli_stmt_close($stmt);

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

這將產生以下結果 -

Table Created.....
Number of rows in the table: 3

示例

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

<?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");

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

   //Storing the result
   $stmt->store_result();

   print("Number of rows ".$stmt ->num_rows);

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

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

這將產生以下結果 -

Table Created.....
Number of rows: 3