php - How to convert a string of numbers into an array? -

i have string e.g. 1398723242. trying check string , odd numbers out in case 13973.

i facing problem on how put string array. after putting string array know have loop through array, this:

foreach($array $value){     if($value % 2 !== 0){         echo $value;     } } 

so can body please on first part on "how put above string array can evaluate each digit in above loop?"

this should work you:

just use str_split() split string array. can use array_filter() filter numbers out. e.g.

<?php      $str = "1398723242";     $filtered = array_filter(str_split($str), function($v){         return $v & 1;     });     echo implode("", $filtered);  ?> 

output:

13973