如果一些值在php中相似，是否从多维创建新的数组？

$students = array(
    array(
        'name' => 'John',
        'age' => 20,
        'grade' => 'A'
    ),
    array(
        'name' => 'Jane',
        'age' => 22,
        'grade' => 'B'
    ),
    array(
        'name' => 'Tom',
        'age' => 21,
        'grade' => 'A'
    )
);

foreach ($students as $student) {
    echo "Name: " . $student['name'] . "<br>";
    echo "Age: " . $student['age'] . "<br>";
    echo "Grade: " . $student['grade'] . "<br><br>";
}

Name: John
Age: 20
Grade: A

Name: Jane
Age: 22
Grade: B

Name: Tom
Age: 21
Grade: A