php - how to check if string in two different arrays match -

i check if string $value in 2 different arrays match. if match, something. if don't match, something.

here code string value seperately if possible combine them , compare strings match.

here first lookup

        $count = count($cert['tbscertificate']['subject']['rdnsequence']);         $exists = array('utf8string', 'printablestring', 'teletexstring', 'bmpstring', 'universalstring', 'ia5string');         $oid = array('id-at-commonname');         for($i = 0; $i < $count; $i++) {             foreach($exists $field) {                 if(                     array_key_exists($field, $cert['tbscertificate']['subject']['rdnsequence'][$i][0]['value']) &&                     in_array($cert['tbscertificate']['subject']['rdnsequence'][$i][0]['type'], $oid)                 ) {                     $value = $cert['tbscertificate']['subject']['rdnsequence'][$i][0]['value'][$field];                     echo $value;                     break; // stop further looping                 }             }         } 

here second lookup:

        $count = count($cert['tbscertificate']['issuer']['rdnsequence']);         $exists = array('utf8string', 'printablestring', 'teletexstring', 'bmpstring', 'universalstring', 'ia5string');         $oid = array('id-at-commonname');         for($i = 0; $i < $count; $i++) {             foreach($exists $field) {                 if(                     array_key_exists($field, $cert['tbscertificate']['issuer']['rdnsequence'][$i][0]['value']) &&                     in_array($cert['tbscertificate']['issuer']['rdnsequence'][$i][0]['type'], $oid)                 ) {                     $value = $cert['tbscertificate']['issuer']['rdnsequence'][$i][0]['value'][$field];                     echo $value;                     break; // stop further looping                 }             }         } 

put lookup code in function takes type parameter, , returns value found. compare 2 calls.

function lookup($cert, $type) {     $count = count($cert['tbscertificate'][$type]['rdnsequence']);     $exists = array('utf8string', 'printablestring', 'teletexstring', 'bmpstring', 'universalstring', 'ia5string');     $oid = array('id-at-commonname');     for($i = 0; $i < $count; $i++) {         foreach($exists $field) {             if(                 array_key_exists($field, $cert['tbscertificate'][$type]['rdnsequence'][$i][0]['value']) &&                 in_array($cert['tbscertificate'][$type]['rdnsequence'][$i][0]['type'], $oid)             ) {                 $value = $cert['tbscertificate'][$type]['rdnsequence'][$i][0]['value'][$field];                 return $value;             }         }     }     return null; }  if (lookup($cert, 'subject') == lookup($cert, 'issuer')) {     // }