function unique_arr($array2D,$stkeep=false,$ndformat=true) { // 判断是否保留一级数组键 (一级数组键可以为非数字) if($stkeep) $stArr = array_keys($array2D); // 判断是否保留二级数组键 (所有二级数组键必须相同) if($ndformat) $ndArr = array_keys(end($array2D)); //降维,也可以用implode,将一维数组转换为用逗号连接的字符串 foreach ($array2D as $v){ $v = join(",,,",$v); $temp[] = $v; } //去掉重复的字符串,也就是重复的一维数组 $temp = array_unique($temp); //再将拆开的数组重新组装 foreach ($temp as $k => $v) { if($stkeep) $k = $stArr[$k]; if($ndformat) { $tempArr = explode(",,,",$v); foreach($tempArr as $ndkey => $ndval) $output[$k][$ndArr[$ndkey]] = $ndval; }else $output[$k] = explode(",,,",$v); } return $output; }
示例 $key = $this->unique_arr($key,true);//$key 为多维数组,里面有重复的值