PHP多维数组排序[重复]

Question

This question already has an answer here:

• How can I sort arrays and data in PHP? 10 answers

I have looked in other posts with the same problem but i cand find a solution for my problem...

I just want to sort this array:

private $text = array(
    array(1, 'aa', '11'),
    array(2, 'cc', '22'),
    array(3, 'bb', '33')
    );

but sorted by the second value, the string.

my code

class combo {  

    private $text = array(
    array(1, 'aa', '11'),
    array(2, 'cc', '22'),
    array(3, 'bb', '33')
    );


     public function combo() {

        //UPDATE WITH PERRYs ANSWER
        usort($this->text, function ($a, $b) {
            return $b[1] < $a[1];
        });

        $content='<div id="round">'.
                        '<div class="round1">'.
                                '<select>';
                                for( $i=0; $i<=3; $i++ )
                                {
                                    $content.= '<option value="' . utf8_encode($this->text[$i][0]) . '">' . utf8_encode($this->text[$i][1]) . '</option>';
                                }
                                $content.='</select>';   
                        $content.='</div>';                 
        $content.='</div>';
        return $content;   
    }


}

thanks!

Rafael S.

</div>

Answer 1

You can use usort.

usort($text, function ($a, $b) {
    return $b[1] < $a[1];
});