在没有全局变量的PHP中比较嵌套的foreach变量？

Question

I have multiple foreach's parsing data that I need to compare with each other. For instance:

foreach ($xml_string->xpath('//location') as $character) {

  $xml_name = $character->earthname;

  $compare_remote = strtolower(preg_replace("/[^a-zA-Z0-9 ]/", "", $xml_name));

}

foreach ( $whatever as $key => $value ) {

 foreach ($value as $pkey){

   $value_name = $pkey["spacename"];

   $compare_local = strtolower(preg_replace("/[^a-zA-Z0-9]/", '', $value_name));

 }
}

How can I loop through both sets of foreach to compare all the values in $compare_remote with the values in $compare_local , I will probably be using levenshtein(), but for the sake of this example anything will do.

Answer 1

    foreach ($xml_string->xpath('//location') as $character) {

      $xml_name = $character->earthname;

      $compare_remote = strtolower(preg_replace("/[^a-zA-Z0-9 ]/", "", $xml_name));

       foreach ( $whatever as $key => $value ) {

          foreach ($value as $pkey){

              $value_name = $pkey["spacename"];

              $compare_local = strtolower(preg_replace("/[^a-zA-Z0-9]/", '', $value_name));

                if( $compare_remote==$compare_local) echo "match";
          }
        }

 }