Group arrays by key value

Question

I have a problem approaching an issue i have, i need to group

arrays

by

key

value

I have 3 foreach functions

    foreach ($report_phonecall as $key=>$value) {

        $phonecalls[$value['datum']] =  $value['broj'];

    };

    foreach ($report_meeting as $key=>$value) {

        $meetings[$value['datum']] =  $value['broj'];

    }

    foreach ($report_notes as $key=>$value) {

        $notes[$value['datum']] =  $value['broj'];

    }

That give me

array

   $phonecall = Array ( [2016-07-13] => 2 [2016-07-14] => 1 [2016-07-19] =>1 ) 

   $meetings = Array ( [2016-07-13] => 1 [2016-07-14] => 1 ) 

   $notes = Array ( [2016-07-19] => 1 )

I need to merge them into 1

array

foreach date like this

Array(2016-07-13 => array([phonecalls]=>2, [meetings]=>1, [notes]=>0)) 2016-07-14 => array([phonecalls]=>1, [meetings]=> 1, [notes]=>0).... etc

I want to group/sort them by key value.

Going by

    $group_reports[$value[key]] = $value['broj'][$phonecalls][$meetings][$notes]

Im not sure how to define it

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Answer 1

Please use below code for merge array

$finalArr = array();
foreach($phonecall as $key=>$val){
    $finalArr[$key]['phonecalls'] = $val;
    $finalArr[$key]['meetings'] = 0;
    $finalArr[$key]['notes'] = 0;
}

foreach($meetings as $key=>$val){
    if(array_key_exists($key, $finalArr)){
        $finalArr[$key]['meetings'] = $val;
    } else {
        $finalArr[$key]['phonecalls'] = 0;
        $finalArr[$key]['meetings'] = $val;
        $finalArr[$key]['notes'] = 0;
    }
}

foreach($notes as $key=>$val){
    if(array_key_exists($key, $finalArr)){
        $finalArr[$key]['notes'] = $val;
    } else {
        $finalArr[$key]['phonecalls'] = 0;
        $finalArr[$key]['meetings'] = 0;
        $finalArr[$key]['notes'] = $val;
    }
}

Group arrays by key value

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