php - Determining the variables with the highest and lowest values -


for example if have:

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

i need determine person highest number , prepend string "w" , determine person lowest (numeric) number , prepend string "l"

i trying output:

$person1 = "w10"; $person2 = "-"; $person3 = "l5"; 

$persons = array(10, '-', '12', 34 ) ; //array of persons, define $max_index = array_search($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 helps. should give hints on functions use. peace danuel

solution 2

foreach((array)$persons $index=>$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[$max_index];//@suppress errors in case @$persons[$min_index] = 'l'.$persons[$min_index];  print_r($persons);

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