Question

How to print a list when first element is first max and second element is first min and so on in PHP

Answer 1

function print_first_max_second_min($arr) { 
    sort($arr); 
  
    $size = count($arr);
    $i = 0; 
    $j = $size - 1; 
    while ($i < $j) { 
        echo $arr[$j--]." "; 
        echo $arr[$i++]." "; 
    } 
  
    if ($size % 2 != 0) 
        echo $arr[$i]; 
} 
  
$arr= array(13, 5, 2, 10, 4, 9, 7, 8, 559); 

print_first_max_second_min($arr); 



/*
run:
 
559 2 13 4 10 5 9 7 8
     
*/
  

 

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