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@ 2017-07-11T14:38:04Z

<?php
$array = array
                    (
                        '9279741067265' => array
                            (
                                'sorting' => 65
                            ),

                        '9278151524353' => array
                            (
                                'sorting' => 0.77
                            ),

                        '9279740739585' => array
                            (
                                'sorting' => 0.68410355
                            ),

                        '9279730974721' => array
                            (
                                'sorting' => 0.3763495396839
                            ),

                        '9279753125889' => array
                            (
                                'sorting' => 0.37579056634306
                            ),

                        '9279727042561' => array
                            (
                                'sorting' => 0.37516783460064
                            ),

                        '9279725240321' => array
                            (
                                'sorting' => 0.37487223764217
                            ),

                        '9279753846785' => array
                            (
                                'sorting' => 0.37485139720698
                            ),

                        '9279725076481' => array
                            (
                                'sorting' => 0.37473267790189
                            ),

                        '9279738642433' => array
                            (
                                'sorting' => 0.37469843689144
                            ),

                    );;

$keys = array_keys($array);
array_multisort(
    array_column($array, 'sorting'), SORT_ASC, SORT_NUMERIC, $array, $keys
);
$array = array_combine($keys, $array);

print_r($array);

array_combine: documentation ( source)
array_column: documentation ( source)
array_multisort: documentation ( source)
print_r: documentation ( source)
array_keys: documentation ( source)

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