Similarity of two-dimensional array judgment values

The two-dimensional array has the same judging value
$array = Array (' PID ' =>1, ' name ' =>a), array (' PID ' =>2, ' name ' =>b), array (' PID ' =>3, ' name ' =>c), Array (' PID ' =>1, ' name ' =>a), array (' PID ' =>4, ' name ' =>d));
A two-dimensional array like this, how to determine the PID and name are equal values (as in the example (' PID ' =>1, ' name ' =>a) value)
Some words, you quit.

------Solution--------------------

PHP Code

$array = Array (' PID ' =>1, ' name ' = ' a '), array (' PID ' =>2, ' name ' = ' B '), Array (' PID ' =>3, ' NA Me ' = ' C '), Array (' PID ' =>1, ' name ' = ' a ')), $tmp =array (), foreach ($array as $k + $v) {if (! $tem [$v [PID]. ' _ '. $v [name]]) {$tem [$v [PID]. '              _ '. $v [name]]= $v;        Print_r ($v);                }else{exit; }        }
------Solution--------------------

  
  

   
   

     PHP code 
    
 $array = Array (' pid ' = = 1, ' name ' = ' a ' ), array (' pid ' = = 2, ' name ' = ' B '), Array (' pid ' = = 3, ' name ' = ' C '), Array (' pid ' = 4, ' name ' =& Gt  ' d '), Array (' pid ' = = 5, ' name ' = = ' E '), array (' pid ' = = 1, ' name ' = ' a '), array (' pid ' = 4, ' name ' = ' d '), $idList = Array (), foreach ($array as $key = = $value) {$idList [] = Implode (', ', $value);} $idList 2 = Array_diff_assoc ($idList, Array_unique ($idList)), foreach ($idList 2 as $key + = $value) {$akey = Array_sea    RCH ($value, $idList);    echo ' repeating array: '; Print_r ($array [$akey]);} 
 