Php/func mysqli fetch all
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PHP mysqli fetch_all()函数
示例-面向对象的样式
获取所有行并将结果集作为关联数组返回:
<?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);
// Fetch all
$result -> fetch_all(MYSQLI_ASSOC);
// Free result set
$result
-> free_result();
$mysqli -> close();
?>
在底部查看程序样式的示例。
定义和用法
fetch_all()/ mysqli_fetch_all()函数获取所有结果行,并以关联数组,数字数组或两者兼有的形式返回结果集。
注意: 该功能仅在MySQL本机驱动程序中可用。
句法
面向对象的样式:
$mysqli_result -> fetch_all(resulttype)
程序风格:
mysqli_fetch_all(result, resulttype)
参数值
| 参数 | 描述 |
|---|---|
| result | 需要。指定mysqli_query(),mysqli_store_result()或mysqli_use_result()返回的结果集标识符 |
| resulttype |
可选的。指定应生成的数组类型。可以是以下值之一:
|
技术细节
| 返回值: | 返回包含结果行的关联或数字数组的数组 |
| PHP版本: | 5.3+ |
示例-程序风格
获取所有行并将结果集作为关联数组返回:
<?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, $sql);
// Fetch all
mysqli_fetch_all($result, MYSQLI_ASSOC);
// Free result set
mysqli_free_result($result);
mysqli_close($con);
?>