How to modify the values ​​in a two-dimensional array in php?

php method to modify the value in a two-dimensional array: 1. Modify through the [for($i = 0; $i < count(Array()); $i)] statement; 2. Modify through foreach( $users as &$user) statement modification.

php method to modify the value in the two-dimensional array:

1. The two-dimensional array can be passed for($i = 0; $i < count(Array()); $i)This form of modification

Instance code:

// 修改 二维数组中的 name为 Getchar
$users = array(
    array('name' => 'GetcharZp', 'age' => 19),
    array('name' => 'Mcx', 'age' => 18)
);
for ($i = 0; $i < count($users); ++ $i) {
    $users[$i][&#39;name&#39;] = &#39;Getchar&#39;;
}
print_r($users);

2. Two-dimensional array also You can modify the example code in the form of

// 修改 二维数组中的 name为 Getchar
$users = array(
    array('name' => 'GetcharZp', 'age' => 19),
    array('name' => 'Mcx', 'age' => 18)
);
foreach ($users as &$user) {
    $user['name'] = 'Getchar';
}
unset($user); // 销毁掉 user 引用
print_r($users);

Related learning recommendations: Getting Started with PHP Programming To master

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