The optimized version of this algorithm!!!!

Problems encountered in the project. There are several decimal groups in a large array, but the decimal group may be duplicated, and the interface needs to return a non-repeating array structure. The built-in function array_merge () in PHP has been tried, and it is not possible to sort the decimal groups. Here's how I use it. I can only say that the efficiency is very low, if you see this article, there is a good way, please tell me. ：） $hotel _setting may contain duplicate large arrays. The decimal group structure is an array (' hotel_adt_cnt ' = ' = ', ' hotel_chd_cnt ' = ' = '); $hotel _unique = Array (); while (1) { $cmp = Array_shift ($hotel _setting); $repeat = false; foreach ($hotel _setting as $val) { if ($val [' hotel_adt_cnt '] = = $cmp [' hotel_adt_cnt '] && $val [' hotel_chd_cnt '] = = $cmp [' hotel_chd_cnt ']) { $repeat = true; Break } } if (! $repeat) { $hotel _unique[] = $cmp; } if (count ($hotel _setting) = = 0) { Break } } $hotel _setting = $hotel _unique; Copy Code

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