Php tips-php Tutorial

Php: PHPcode & lt ;? PhpclassEnum {protected $ selfarray (); publicfunction_construct () {$ argsfunc_get_args (); for ($ i0, $ ncount ($ args); $ I & lt; $ n; $ I ++) php FAQ

PHP code

  
  add($args[$i]);    }    public function _get($name=null)    {        return $this->self[$name];    }    public function add($name=null,$enum=null)    {        if(isset($enum)) $this->self[$name]=$enum;        else $this->sef[$name]=end($this->self)+1;    }}class DefinedEnum extends Enum{    public function _construct($itms)    {        foreach($itms as $name=>$enum)        $this->add($name,$enum);    }}class FlagsEnum extends Enum{    public function _construct()    {        $args=func_get_args();        for($i=0,$n=count($args),$f=0x1;$i<$n;$i++,$f*=0x2)        $this->add($args[i],$f);    }}$eFruits=new Enum("APPLE","ORANGE","PEACH");echo $eFruits->APPLE.",";echo $eFruits->ORANGE.",";echo $eFruits->PEACH."\n";$eBeers=new DefinedEnum("GUINESS"=>25,"MIRROR_POND"=>49);echo $eBeers->GUINESS.",";echo $eBeers->MIRROR_POND."\n";$eFlags=new FlagsEnum("HAS_ADMIN","HAS_SUPER","HAS_POWER","HAS_GUEST");echo $eFlags->HAS_ADMIN.",";echo $eFlags->HAS_SUPER.",";echo $eFlags->HAS_POWER.",";echo $eFlags->HAS_GUEST."\n";?>

Why can't I understand this code?
$ EFruits-> APPLE
$ EFruits-> ORANGE
$ EFruits-> PEACH
Don't laugh.




------ Solution --------------------
1. modify the program correctly: All the method names with underscores before the method names are changed to two underscores.
For example, change _ construct to _ construct.

2. modify the _ get method as follows:
Public function _ get ($ name = null)
{
Echo "read attribute $ name ";
Return $ this-> self [$ name];
}
3. run the modified code and you will know what is going on.

------ Solution --------------------

PHP code

Class Enum {protected $ self = array (); public function _ construct () {$ args = func_get_args (); for ($ I = 0, $ n = count ($ args); $ I <$ n; $ I ++) $ this-> add ($ args [$ I]);} public function _ get ($ name = null) {return $ this-> self [$ name];} public function add ($ name = null, $ enum = null) {if (isset ($ enum) {$ this-> self [$ name] = $ enum ;} else {$ this-> self [$ name] = end ($ this-> self) + 1 ;}} class DefinedEnum extends Enum {public function _ construct ($ itms) {foreach ($ itms as $ name => $ enum) $ this-> add ($ name, $ enum) ;}} class FlagsEnum extends Enum {public function _ construct () {$ args = func_get_args (); for ($ I = 0, $ n = count ($ args), $ f = 0x1; $ I <$ n; $ I ++, $ f * = 0x2) {$ this-> add ($ args [$ I], $ f );}}} $ eFruits = new Enum ("APPLE", "ORANGE", "PEACH"); echo $ eFruits-> APPLE. ","; echo $ eFruits-> ORANGE. ","; echo $ eFruits-> PEACH. "\ n"; $ eBeers = new DefinedEnum (array ("GUINESS" => 25, "pai_pond" => 49); echo $ eBeers-> GUINESS. ","; echo $ eBeers-> pai_pond. "\ n"; $ eFlags = new FlagsEnum ("HAS_ADMIN", "HAS_SUPER", "HAS_POWER", "HAS_GUEST"); echo ($ eFlags-> HAS_ADMIN ). ","; echo ($ eFlags-> HAS_SUPER ). ","; echo $ eFlags-> HAS_POWER. ","; echo $ eFlags-> HAS_GUEST. "\ n ";
------ Solution --------------------
Both underlines are correct.