mysqli_result::fetch_array

定義和用法

fetch_array() / mysqli_fetch_array()函數獲取結果行作為關聯數組、數字數組或兩者。

注意：從該函數返回的字段名是區分大小寫的。

實例

例子1 - 面向對像風格

獲取結果行作為數字數組和關聯數組：

 <?php
$mysqli = new mysqli ( "localhost" , "my_user" , "my_password" , "my_db" ) ;

if ( $mysqli -> connect_errno ) {
  echo "Failed to connect to MySQL: " . $mysqli -> connect_error ;
  exit ( ) ;
}

$sql = "SELECT Lastname, Age FROM Persons ORDER BY Lastname" ;
$result = $mysqli -> query ( $sql ) ;

// 數字數組
$row = $result -> fetch_array ( MYSQLI_NUM ) ;
printf ( "%s (%s)\n" , $row [ 0 ] , $row [ 1 ] ) ;

// 關聯數組
$row = $result -> fetch_array ( MYSQLI_ASSOC ) ;
printf ( "%s (%s)\n" , $row [ "Lastname" ] , $row [ "Age" ] ) ;

// 釋放結果集
$result -> free_result ( ) ;

$mysqli -> close ( ) ;
?>

例子2 - 過程式風格

獲取結果行作為數字數組和關聯數組：

 <?php
$con = mysqli_connect ( "localhost" , "my_user" , "my_password" , "my_db" ) ;

if ( mysqli_connect_errno ( ) ) {
  echo "Failed to connect to MySQL: " . mysqli_connect_error ( ) ;
  exit ( ) ;
}

$sql = "SELECT Lastname, Age FROM Persons ORDER BY Lastname" ;
$result = mysqli_query ( $con , $sql ) ;

// 數字數組
$row = mysqli_fetch_array ( $result , MYSQLI_NUM ) ;
printf ( "%s (%s)\n" , $row [ 0 ] , $row [ 1 ] ) ;

// 關聯數組
$row = mysqli_fetch_array ( $result , MYSQLI_ASSOC ) ;
printf ( "%s (%s)\n" , $row [ "Lastname" ] , $row [ "Age" ] ) ;

// 釋放結果集
mysqli_free_result ( $result ) ;

mysqli_close ( $con ) ;
?>