fetch_assoc

❮ PHP MySQLi 参考手册

示例 - 面向对象的样式

从结果集中取得一行作为关联数组:

<?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);

// Associative array
$row = $result -> fetch_assoc();
printf ("%s (%s)\n", $row["Lastname"], $row["Age"]);

// Free result set
$result -> free_result();

$mysqli -> close();
?>

查看底部的程序样式示例。

---

定义和用法

fetch_assoc() / mysqli_fetch_assoc() 函数从结果集中取得一行作为关联数组。

注释: 该函数返回的字段名是区分大小写的。

---

语法

面向对象的风格:

$mysqli_result -> fetch_assoc()

程序风格:

mysqli_fetch_assoc(result)

参数值

参数	描述
result	必需。规定由 mysqli_query()、mysqli_store_result() 或 mysqli_use_result() 返回的结果集标识符。

技术细节

返回值:	返回代表读取行的关联数组。如果结果集中没有更多的行则返回 NULL。
PHP 版本:	5+

---

示例 - 程序样式

从结果集中取得一行作为关联数组:

<?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);

// Associative array
$row = mysqli_fetch_assoc($result);
printf ("%s (%s)\n", $row["Lastname"], $row["Age"]);

// Free result set
mysqli_free_result($result);

mysqli_close($con);
?>

---

❮ PHP MySQLi 参考手册