Search for the city in country>state->city multidimensional array

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<html>
<head>
<title>Online PHP Script Execution</title>
</head>
<body>
<?php
   $arr = [
       'Country1'=>
            ['state1'=> ['city1','city2','city3'], 
             'state2'=> ['city4','city5'] ],
      'Country2'=> ['state3' => ['city6','city7'] ]
      ];
foreach($arr as $key => $value){
// echo $key;echo "<br/>";
  foreach( $value as $k => $v ){
      // echo $k;echo "<br/>";
       foreach( $v as $k1 => $v1 ){
      if( $v1 == 'city6'){
         echo "FOUND city= ".$v1." COUNTRY =".$key."STATE = ".$k;echo "<br/>";
      }
    }
    }
  
}
?>
</body>
</html>

Search for the city in country>state->city multidimensional array

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