Question

For example if I have:

$person1 = "10";
$person2 = "-";
$person3 = "5";

I need to determine the person with the highest number and prepend their string with a “W” and also determine the person with the lowest (numeric) number and prepend their string with a “L”

I am trying to output:

$person1 = "W10";
$person2 = "-";
$person3 = "L5";

Answer 1

$persons = array(10, '-', '12', 34 ) ; //array of persons, you define this
$max_index = array_search($max = max($persons), $persons);
$min_index = array_search($min = min($persons), $persons);
$persons[$max_index] = 'W' . $persons[$max_index];
$persons[$min_index] = 'L' . $persons[$min_index];

print_r($persons);

Hope that helps. It should give you hints on what functions to use. Peace Danuel

solution 2

foreach((array)$persons as $index=>$value){
        if(!is_numeric($value))continue;
        if(!isset($max_value)){
                $max_value = $value;
                $max_index = $index;
        }
        if(!isset($min_value)){
                $min_value = $value;
                $min_index = $index;
        }
        if( $max_value < $value ){
                $max_value = $value;
                $max_index = $index;
        }
        if( $min_value > $value ){
                $min_value = $value;
                $min_index = $index;
        }
}

@$persons[$max_index] = 'W'.$persons[$max_index];//@suppress some errors just in case
@$persons[$min_index] = 'L'.$persons[$min_index];

print_r($persons);