按名称PHP排序数组

I have this associative array that I want to sort in a custom order (not just alphabetically):

$arr = [
    '1' => 'Lorem Ipsum 1',
    '2' => 'Lorem Ipsum 3',
    '3' => 'Lorem Ipsum 2',
    '4' => 'Text A',
    '5' => 'Text B',
    '6' => 'Text C',
    '7' => 'Lorem Ipsum 4',
    '8' => 'Text D',
    '9' => 'Text E',
];

I need this output:

$arr = [
    '4' => 'Text A',
    '5' => 'Text B',
    '6' => 'Text C',
    '8' => 'Text D',
    '9' => 'Text E',
    '1' => 'Lorem Ipsum 1',
    '3' => 'Lorem Ipsum 2',
    '2' => 'Lorem Ipsum 3',
    '7' => 'Lorem Ipsum 4'
];

How the array needs to be sorted (keep key-value association)

• Sort Array Alphabetically
• After this, all values that start with Text have to be on top

I already tried it with the function uasort, but could not find out how to sort them starting with Text.

Thank you

You can use uasort(), and in the sort function, check if the value starts by "Text". If so, sort using this case, otherwise, sort naturally:

$arr = [
    '1' => 'Lorem Ipsum 1',
    '2' => 'Lorem Ipsum 3',
    '3' => 'Lorem Ipsum 2',
    '4' => 'Text A',
    '5' => 'Text B',
    '6' => 'Text C',
    '7' => 'Lorem Ipsum 4',
    '8' => 'Text D',
    '9' => 'Text E',
];
uasort($arr, function($a, $b){
    $a_text = strpos($a, 'Text') === 0;
    $b_text = strpos($b, 'Text') === 0;
    if ($a_text != $b_text) {
        return $b_text - $a_text ;
    }
    return strnatcmp($a,$b);
});
print_r($arr);

Output:

Array
(
    [4] => Text A
    [5] => Text B
    [6] => Text C
    [8] => Text D
    [9] => Text E
    [1] => Lorem Ipsum 1
    [3] => Lorem Ipsum 2
    [2] => Lorem Ipsum 3
    [7] => Lorem Ipsum 4
)

$arr = [
        '1' => 'Lorem Ipsum 1',
        '2' => 'Lorem Ipsum 3',
        '3' => 'Lorem Ipsum 2',
        '4' => 'Text A',
        '5' => 'Text B',
        '6' => 'Text C',
        '7' => 'Lorem Ipsum 4',
        '8' => 'Text D',
        '9' => 'Text E',
    ];

    rsort($arr);
    var_dump($arr);

use asort. http://php.net/manual/en/function.asort.php.

 asort($arr);

asort() - Maintains key association: yes.