PHPExcel: Set Column Names fromArray using PHP array -

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i'm using phpexcel library export data excel. i'm able data excel expected. how can set column names php array. here code i'm using. please help

    $data=(     array(10) (       [0] => array(8) (         [#] => (string)         [name] => (string) student1         [id] => (string) 123456         [date] => (string) 2016-02-01         [group] => (string) physics         [month] => (string) february         [year] => (string) 2016       )       [1] => array(8) (         [#] => (string)         [name] => (string) student2         [id] => (string) 569874         [date] => (string) 2016-02-01         [group] => (string) biology         [month] => (string) february         [year] => (string) 2016......);      $objphpexcel = new phpexcel();      $objphpexcel->setactivesheetindex(0);     $objphpexcel->getactivesheet()->setcellvalue('a1', "#");     $objphpexcel->getactivesheet()->setcellvalue('b1', "name");     $objphpexcel->getactivesheet()->setcellvalue('c1', "id");     $objphpexcel->getactivesheet()->setcellvalue('d1', "date");     $objphpexcel->getactivesheet()->setcellvalue('e1', "group");     $objphpexcel->getactivesheet()->setcellvalue('f1', "month");     $objphpexcel->getactivesheet()->setcellvalue('g1', "year");

//how replace/make dynamic lines above set cell values in first row based on array data column names. i.e name, id, date,.....

//add data  $objphpexcel->getactivesheet()->fromarray($data,null,'a2');

like ?

$objphpexcel->getactivesheet()->fromarray(array_keys($data[0]),null,'a2');

now know that's want do, short explain.

array_keys copy's keys array value numbered array, if have array this:

[#] => (string) [name] => (string) student1 [id] => (string) 123456 [date] => (string) 2016-02-01 [group] => (string) physics [month] => (string) february [year] => (string) 2016

it return following array:

[0] = "#" [1] = "name" [2] = "id" ...

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