本文实例总结了PHP常用排序算法。分享给大家供大家参考,具体如下:
class bevin{public $public = "public";private $private = "private";protected $protected = "protected";//final $final = "final";static $static = "static";function __construct(){ $this->protected = "change private";}public function setValue($a){ self::$static = $a;}public function getValue(){ echo $this->private;}function __destruct(){ echo "asdfsadf";}}class paixu {// 基本排序public function t_sortArray($array) { if(is_array($array) && count($array)>1) { for($i=0; $i<count($array); $i++) {for($j=($i+1); $j<count($array); $j++) {$temp = $array[$i];if($array[$j]<$array[$i]) {$array[$i] = $array[$j];$array[$j] = $temp;}} } return $array; } else { return $array; }}// 冒泡排序public function c_sortArray($array) { if(!is_array($array) || count($array)<=1){ return $array; } $status = false; foreach($array as $key=>$v) { if($key>0) {if($array[$key-1]>$array[$key]) {$array[$key] = $array[$key-1];$array[$key-1] = $v;$status = true;} } } if($status) { return $this->c_sortArray($array); } else { return $array; }}// 快速排序public function v_sortArray($array) { if(!is_array($array) || count($array)<=1){ return $array; } if(count($array)>2) { $m = $array[floor(count($array)/2)+1]; } else { if($array[0]>$array[1]) {$temp = $array[0];$array[0] = $array[1];$array[1] = $temp; } return $array; } $leftarray = array(); $rightarray = array(); foreach($array as $key=>$v) { if($v>$m) {$rightarray[] = $v; } if($v<$m) {$leftarray[] = $v; } if($v==$m) {$mid[] = $v; } } $nleftarray = $this->v_sortArray($leftarray); $nrightarray = $this->v_sortArray($rightarray); return array_merge($nleftarray,$mid,$nrightarray);}// 直接插入排序public function i_sortArray($array) { if(!is_array($array) || count($array)<=1){ return $array; } $newarray = array($array[0]); $temp = 0; foreach($array as $k=>$v) { if($k>0) {if($v>=$newarray[count($newarray)-1]) {$newarray[] = $v;} else {foreach($newarray as $nk=>$nv) {if($v<$nv) {$temparray = array();foreach($newarray as $ck=>$cv) { if($ck<$nk) { $temparray[$ck] = $cv; } elseif($ck==$nk) { $temparray[$ck] = $v; $temparray[($ck+1)] = $cv; } else { $temparray[($ck+1)] = $cv; }}$newarray = $temparray;break;}}} } } return $newarray;}}$bevin = new paixu;$array = array(5,4,5,4,4,5,5,5,5,5);$v = $bevin->t_sortArray($array);print_r($v);$v = $bevin->c_sortArray($array);print_r($v);$v = $bevin->v_sortArray($array);print_r($v);$v = $bevin->i_sortArray($array);print_r($v);
运行结果:
Array([0] => 4[1] => 4[2] => 4[3] => 5[4] => 5[5] => 5[6] => 5[7] => 5[8] => 5[9] => 5)Array([0] => 4[1] => 4[2] => 4[3] => 5[4] => 5[5] => 5[6] => 5[7] => 5[8] => 5[9] => 5)Array([0] => 4[1] => 4[2] => 4[3] => 5[4] => 5[5] => 5[6] => 5[7] => 5[8] => 5[9] => 5)Array([0] => 4[1] => 4[2] => 4[3] => 5[4] => 5[5] => 5[6] => 5[7] => 5[8] => 5[9] => 5)
更多关于PHP相关内容感兴趣的读者可查看本站专题:《php排序算法总结》、《PHP数组(Array)操作技巧大全》、《php字符串(string)用法总结》、《php常用函数与技巧总结》、《PHP错误与异常处理方法总结》、《php面向对象程序设计入门教程》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》
希望本文所述对大家PHP程序设计有所帮助。