AJphpcxy的博客

$data = array( array( 'id' => 5698, 'first_name' => 'Bill', 'last_name' => 'Gates', ), array( 'id' => 4767, 'first_name' => 'Steve', 'last_name' => 'Ao...

class Mysql { private static $self = null; public static function create(){  if (self::$self === null) {   self::$self = new self();  }  return self::$self; } private function __construct(){ } private...

$b=array('4','3','8','9','2','1');$len=count($b);//6第一种：for($k=0;$k<=$len;$k++){    for($j=$len-1;$j>$k;$j--){        if($b[$j]<$b[$j-1]){            $temp = $b[$j];            $b[$j] = $b[$j...