[PHP] find the Duplicate values in array using php

Return duplicate values in array using PHP

Example:


<?php

$a = array('1','2','5','8');

$b = array('2','3','4','5');

print_r(array_repeat(array_merge($a,$b)));

function array_repeat($arr){
    if(!is_array($arr))
        return $arr;    

$arr1 = array_unique($arr);    

$arr3 = array_diff_key($arr,$arr1);    

return array_unique($arr3);}

?>

Result:

array $a

array $b

array_merge($a,$b)

array_repeat(array_merge($a,$b))

[PHP] How to use Explode , Implode in PHP

Explode Function (PHP)

Break a string into an array


<?php
  $str = "time,clock,book,money";
  print_r (explode(",",$str));
?>

Result:
Array ( [0] => time [1] => clock [2] => book [3] => money )

Implode Function (PHP)

Join array elements with a string

<?php
  $arr = array('We','are','family','.');
  echo implode(" ",$arr);
?>

Result:

We are family .