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13 years ago
I made this function named "array_getMax" that returns te maximum value and index, from array:



<?php

//using array_search_all by helenadeus at gmail dot com



function array_search_all($needle, $haystack)

{#array_search_match($needle, $haystack) returns all the keys of the values that match $needle in $haystack



    foreach ($haystack as $k=>$v) {

   

        if($haystack[$k]==$needle){

       

           $array[] = $k;

        }

    }

    return ($array);



   

}



function array_getMax($array){

        

    $conteo=array_count_values($array);

    

    if( count($conteo)==1 ){//returns full array when all values are the same.

        return  $array;       

    }

       

    arsort($array);

    

    //$antValue=null;

    $maxValue=null;

    $keyValue=null;

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

        if($maxValue==null){

            $maxValue=$value;

            $keyValue=$key;

            break;

        }        

    }

    

    $resultSearch=array_search_all($maxValue, $array);

        

   return  array_fill_keys($resultSearch, $maxValue);

    

    

}



//example 

  $arreglo=array('e1'=>99,'e2'=>'99','e3'=>1,'e4'=>1,'e5'=>98);

    

    var_dump(array_getMax($arreglo));



//output

/*

array(2) {

  ["e1"]=>

  int(99)

  ["e2"]=>

  int(99)

}

*/

?>



I hope some one find this usefull
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