PHP-Code

<?php
  
  function checkMuster($values, $keys, $res= ''){
    
    if (empty($keys)) 
        return $res == '' ?  "empty" : $res;
    else if ( count($keys) != count($values) )
        return "count is diffrence";

    $compareKey = array_splice($keys, 0, 1)[0];
    $compareValue = array_splice($values, 0, 1)[0];
    
    $count = count($keys);

    for($i = $count - 1; $i >= 0 ; $i--){
      if ($keys[$i] == $compareKey) {
          if ($compareValue != $values[$i]){
              return "$compareKey => $compareValue difference $keys[$i] => $values[$i]";
            }           
          array_splice($keys, $i, 1);
          array_splice($values, $i, 1);
      }
    }

    $res = "true";
    return checkMuster($values, $keys, $res);
};

$strValue = 'dog cathh cat dog'; 
$strKey = 'abba';
echo checkMuster(explode(' ', $strValue), str_split($strKey));

PHP-Code

<?php

$patternCheck = function(string $text, string $pattern): bool {
  // validate input
  if (!preg_match('/[a-z ]+/', $text)) return false;
  if (!preg_match('/[a-z]+/', $pattern)) return false;
  
  $words = explode(' ', $text);
  $pattern = str_split($pattern);
  
  // validate pattern length with amount of words
  if (sizeof($words) !== sizeof($pattern)) return false;
  
  $map = [];
  
  // sort all words by into an associative array.
  // the key is the single pattern chracter.
  foreach ($words as $index => $word) {
    $map[$pattern[$index]][] = $word;
  }
 
  foreach ($map as $patternKey => $items) {
    // A value greater than 1 means not all items are equal, thus pattern error
    if (sizeof(array_flip($items)) > 1) return false;
  }
  
  return true;
};

var_dump($patternCheck('hund katze katze hund', 'abba'));
var_dump($patternCheck('hund katze maus hund', 'abba'));
var_dump($patternCheck('hund katze maus maus katze hund', 'abccba'));
var_dump($patternCheck('hund hund hund hund', 'aaa'));
var_dump($patternCheck('hund katze hund katze', 'abab'));