Enhanced version of array_unique function (supports two-dimensional arrays)

//Remove duplicate values ​​from the two-dimensional array
function array_unique_fb($array2D){
 foreach ($array2D as $v){
 $v = join("," ,$v); //For dimensionality reduction, you can also use implode to convert a one-dimensional array into a string connected with commas
 $temp[] = $v;
 }
 $temp = array_unique($temp); //Remove repeated strings, that is, repeated one-dimensional arrays
 foreach ($temp as $k => $v){
 $temp[$k] = explode("," ,$v); //Reassemble the disassembled array
 }
 return $temp;
}?>