fetch_object

定义和用法

fetch_object() / mysqli_fetch_object() 函数以对象的形式返回结果集中的当前行。

注意：从该函数返回的字段名是区分大小写的。

实例

例子 1 - 面向对象风格

返回结果集中的当前行，然后打印每个字段的值：

<?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";

if ($result = $mysqli -> query($sql)) {
  while ($obj = $result -> fetch_object()) {
    printf("%s (%s)\n", $obj->Lastname, $obj->Age);
  }
  $result -> free_result();
}

$mysqli -> close();
?>

例子 2 - 过程式风格

返回结果集中的当前行，然后打印每个字段的值：

<?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";

if ($result = mysqli_query($con, $sql)) {
  while ($obj = mysqli_fetch_object($result)) {
    printf("%s (%s)\n", $obj->Lastname, $obj->Age);
  }
  mysqli_free_result($result);
}

mysqli_close($con);
?>