Get min and max value in PHP Array

Question

I have an array like this:

array (0 => 
  array (
    \'id\' => \'20110209172713\',
    \'Date\' => \'2011-02-09\',
    \'Weight\' => \'200\',
  ),
  1 =>          


        

Answer 1

How about without using predefined function like min or max ?

$arr = [4,5,6,7,8,2,9,1];
$val = $arr[0];
$n = count($arr);

for($i=1;$i<$n;$i++) {
if($val<$arr[$i]) {
    $val = $val;        
} else {
    $val = $arr[$i];
}
}
print($val);

?>