Question

How to get intersection of two strings in PHP

Answer 1

function stringIntersection($string1, $string2) {
    // Convert strings to arrays of characters
    $array1 = str_split($string1);
    $array2 = str_split($string2);

    // Find common characters
    $intersection = array_intersect($array1, $array2);

    // Convert the result back to a string and remove duplicates
    return implode(',', array_unique($intersection));
}

$string1 = "php";
$string2 = "python";
$result = stringIntersection($string1, $string2);

echo "Intersection: " . $result; 


 
/*
run:
  
Intersection: p,h
  
*/

 

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