array(22,3,41,18) , //需要排序的数组值 'sort' => 'insert', //可能值: insert, select, bubble, quick 'debug' => TRUE //可能值: TRUE, FALSE ) */ public function __construct($config = array()) { if ( count($config) > 0) { $this->_init($config); } } /** * 获取排序结果 */ public function display() { return $this->arr; } /** * 初始化 * * @param array * @return bool */ private function _init($config = array()) { //参数判断 if ( !is_array($config) OR count($config) == 0) { if ($this->debug === TRUE) { $this->_log("sort_init_param_invaild"); } return FALSE; } //初始化成员变量 foreach ($config as $key => $val) { if ( isset($this->$key)) { $this->$key = $val; } } //调用相应的成员方法完成排序 $method = $this->sort . $this->marker; if ( ! method_exists($this, $method)) { if ($this->debug === TRUE) { $this->_log("sort_method_invaild"); } return FALSE; } if ( FALSE === ($this->arr = $this->$method($this->arr))) return FALSE; return TRUE; } /** * 插入排序 * * @param array * @return bool */ private function insert_sort($arr) { //参数判断 if ( ! is_array($arr) OR count($arr) == 0) { if ($this->debug === TRUE) { $this->_log("sort_array(insert)_invaild"); } return FALSE; } //具体实现 $count = count($arr); for ($i = 1; $i < $count; $i++) { $tmp = $arr[$i]; for($j = $i-1; $j >= 0; $j--) { if($arr[$j] > $tmp) { $arr[$j+1] = $arr[$j]; $arr[$j] = $tmp; } } } return $arr; } /** * 选择排序 * * @param array * @return bool */ private function select_sort($arr) { //参数判断 if ( ! is_array($arr) OR count($arr) == 0) { if ($this->debug === TRUE) { $this->_log("sort_array(select)_invaild"); } return FALSE; } //具体实现 $count = count($arr); for ($i = 0; $i < $count-1; $i++) { $min = $i; for ($j = $i+1; $j < $count; $j++) { if ($arr[$min] > $arr[$j]) $min = $j; } if ($min != $i) { $tmp = $arr[$min]; $arr[$min] = $arr[$i]; $arr[$i] = $tmp; } } return $arr; } /** * 冒泡排序 * * @param array * @return bool */ private function bubble_sort($arr) { //参数判断 if ( ! is_array($arr) OR count($arr) == 0) { if ($this->debug === TRUE) { $this->_log("sort_array(bubble)_invaild"); } return FALSE; } //具体实现 $count = count($arr); for ($i = 0; $i < $count; $i++) { for ($j = $count-1; $j > $i; $j--) { if ($arr[$j] < $arr[$j-1]) { $tmp = $arr[$j]; $arr[$j] = $arr[$j-1]; $arr[$j-1] = $tmp; } } } return $arr; } /** * 快速排序 * * @param array * @return bool */ private function quick_sort($arr) { //具体实现 if (count($arr) <= 1) return $arr; $key = $arr[0]; $left_arr = array(); $right_arr = array(); for ($i = 1; $i < count($arr); $i++){ if ($arr[$i] quick_sort($left_arr); $right_arr = $this->quick_sort($right_arr); return array_merge($left_arr, array($key), $right_arr); } /** * 日志记录 */ private function _log($msg) { $msg = 'date[' . date('Y-m-d H:i:s') . '] ' . $msg . '\n'; return @file_put_contents('sort_err.log', $msg, FILE_APPEND); } } /*End of file sort.php*/ /*Location htdocs/sort.php */

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