PHP 二维数据去重复值方法（去重）

二维数组去复

$a=array(

"0"=>array("a"=>"red","b"=>"green","c"=>"red","d"=>"hey"),

"1"=>array("a"=>"red","b"=>"green","c"=>"red","d"=>"hey"),

"2"=>array("a"=>"node","b"=>"green","c"=>"red","d"=>"hey")

);

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

$data[] =implode(",", $value);

}

$res = array_unique($data);

foreach($res as $key){

$array[] = explode(",", $key);

}