Question

How to find all the odd values in array with array_filter() function in PHP

Answer 1

function odd($val) {
      return($val & 1);
}
   
$arr = array("a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5, "f"=>6);
  
echo "Odd Values:<br />";
print_r(array_filter($arr, "odd"));
    
/*
run:
 
Odd Values:
Array ( [a] => 1 [c] => 3 [e] => 5 )  
      
*/

 

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Answer 2

function odd($val) {
      return($val & 1);
}
   
$arr = array(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
  
echo "Odd Values:<br />";
print_r(array_filter($arr, "odd"));
    
/*
run:
 
Odd Values:
Array ( [0] => 1 [2] => 3 [4] => 5 [6] => 7 [8] => 9 ) 
      
*/

 

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