How to get maximum value in inner array elements in php -

this might easy not me

i have var_dump($array) this.

array (size=12) 0 => int 1  1 => int 7 2 => int 8 3 => int 9 4 => int 3 5 => int 8 6 => int 3 7 => int 6 8 => int 5 9 => int 3 10 => int 4 11 => int 5 

i need max value index 2 5 , index 4 8 , 8 11

how can acheive this. tried max() function getting errors.

you can iterate through array searching max value. first set var $max negative value , inside loop if value in index $i greater $max, change value.

<?php  $array = array( 0 =>  1,  1 =>  7, 2 =>  8, 3 =>  9, 4 =>  3, 5 =>  8, 6 =>  3, 7 =>  6, 8 =>  5, 9 =>  3, 10 =>  4, 11 =>  5 );  function maxarray($from, $to, $array) {     $max = -1;     for($i = $from; $i <= $to; $i++) {         if($array[$i] > $max) {             $max = $array[$i];         }        }      return $max; }         echo maxarray(2, 5, $array) . "<br>"; echo maxarray(4, 8, $array) . "<br>"; echo maxarray(8, 11, $array) . "<br>";  ?> 

output:

9 8 5