Question

How to print the characters need to be removed so that two strings become anagram in PHP

Answer 1

function PrintCharactersNeedToBeRemovedForAnagram($str1, $str2) {
    $TotalABCLetters = 26;
    $count1 = array_fill(0,$TotalABCLetters,0);        
    $count2 = array_fill(0,$TotalABCLetters,0);
    $size1 = strlen($str1);
    $size2 = strlen($str2);
        
    // count char frequency str1
    for ($i = 0; $i < $size1; $i++) {
        $count1[ord($str1[$i]) - ord('a')]++;
    }
        
    // count char frequency str2
    for ($i = 0; $i < $size2; $i++) {
        $count2[ord($str2[$i]) - ord('a')]++;
    }
        
    for ($i = 0; $i < $TotalABCLetters; $i++) {
        if (abs($count1[$i] - $count2[$i]) != 0) {
            echo strval(chr(($i + ord('a')))) . " ";
        }
    }
}
        
$str1 = "masterfx";
$str2 = "ksampret";

PrintCharactersNeedToBeRemovedForAnagram($str1, $str2);




/*
run:

f k p x 

*/

 

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