PHP -添加到多维数组会将新数组添加到第一个数组元素，而不是正确的元素

$multiArray = array(
    array('name' => 'Alice', 'age' => 25),
    array('name' => 'Bob', 'age' => 30)
);

$newArray = array('name' => 'Charlie', 'age' => 35);

array_push($multiArray, $newArray);

print_r($multiArray);

Array
(
    [0] => Array
        (
            [name] => Alice
            [age] => 25
        )

    [1] => Array
        (
            [name] => Bob
            [age] => 30
        )

    [2] => Array
        (
            [name] => Charlie
            [age] => 35
        )

)

$multiArray = array(
    array('name' => 'Alice', 'age' => 25),
    array('name' => 'Bob', 'age' => 30)
);

$newArray = array('name' => 'Charlie', 'age' => 35);

$multiArray[] = $newArray;

print_r($multiArray);