RE: [PHP] about __get,__set Overloading, read-only properties

2007-12-23 Thread ked 
 I think  you misread my pure-hearted thankfulness.I am sorry for my
ambiguous sentence.   
Last reply mean :  I'm  happy to known that we have the same idea,  just
like a student got teacher's praise .
Merry Christmas Eve!


 -Original Message-
 From: Jochem Maas [mailto:[EMAIL PROTECTED] 
 Sent: Sunday, December 23, 2007 9:08 AM
 To: ked
 Cc: php-general@lists.php.net
 Subject: Re: [PHP] about __get,__set Overloading, read-only properties
 
 ked schreef:
   My idea is just  your answer...happy..ing  ^_^
  
  You are so warmhearted.  Thanks a lot!  : )
 
 I don't get accused of that very often. are you being 
 sarcastic or did my suggestion help? (sorry I didn't quite 
 understand your reply)
 
  
  I will never post a question to a existing thread .
 
 good. that's one down 1,000,983 to go :-)
 
  

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Re: [PHP] about __get,__set Overloading, read-only properties

2007-12-22 Thread Jochem Maas 
ked schreef:
  My idea is just  your answer...happy..ing  ^_^ 
 
 You are so warmhearted.  Thanks a lot!  : )

I don't get accused of that very often. are you being
sarcastic or did my suggestion help? (sorry I didn't quite
understand your reply)

 
 I will never post a question to a existing thread .

good. that's one down 1,000,983 to go :-)

 
 -Original Message-
 From: Jochem Maas [mailto:[EMAIL PROTECTED] 
 Sent: Friday, December 21, 2007 9:11 AM
 To: ked
 Cc: php-general@lists.php.net
 Subject: Re: [PHP] about __get,__set Overloading, read-only properties

 pleae don't reply to an existing thread when posting a new question.

 ked schreef:
 Hi. all ,

 I got a article from php 5.0 manual's comments. It's useful, offer 
 readonly properties for classes.

 (look at the end of this message for  the article )

 find out  function __construct(), I want to modify 
 $this-id in it , 
 then I got a  readonly Exception (defined in __set function).

 Distinctly, a read-only property could not be change via 
 $obj-attribute = ''  ,  but is could be change via 
 $this-id='',  
 inside of  class , isn't it ?

  How to modify __set function ?  
 don't - let __set() be the policeman it's supposed to be.
 either create a private function to initialize values or set 
 the values directly in the array

 private function init($k, $v)
 {
  if (isset($this-p_arrPublicProperties[$k]))
  $this-p_arrPublicProperties[$k]['value'] = $v; }

 thanks for any advises.

 regards!
 ked


 the article is here: 

 --
 --
 
 Eric Lafkoff (22-Feb-2006 02:56)

 If you're wondering how to create read-only properties for 
 your class, 
 the
 __get() and __set() functions are what you're looking for. You just 
 have to create the framework and code to implement this 
 functionality.
 Here's a quick example I've written. This code doesn't take 
 advantage 
 of the type attribute in the properties array, but is 
 there for ideas.
 ?php
 class Test
 {
 private $p_arrPublicProperties = array(
 id = array(value = 4,type = int,readonly = true),
 datetime = array(value = Tue 02/21/2006 
 20:49:23,type = 
 string, readonly = true),
 data = array(value = foo, type = string, 
 readonly =
 false)
 );

 //ked add!!!
 public function __construct()
 {
 $this-id = 100; //will get 
  exception !!
 }

 private function __get($strProperty) { //Get a property:
 if (isset($this-p_arrPublicProperties[$strProperty])) { return 
 $this-p_arrPublicProperties[$strProperty][value];
 } else {
 throw new Exception(Property not defined); return false; } }

 private function __set($strProperty, $varValue) { //Set a 
 property to 
 a value:
 if (isset($this-p_arrPublicProperties[$strProperty])) { //Check if 
 property is read-only:
 if ($this-p_arrPublicProperties[$strProperty][readonly]) { throw 
 new Exception(Property is read-only); 
 ///---note here return 
 false; } else { 
 $this-p_arrPublicProperties[$strProperty][value] = 
 $varValue; return true; } } else { throw new 
 Exception(Property not 
 defined); return false; } }

private function __isset($strProperty) {
 //Determine if property is set:
 return isset($this-p_arrPublicProperties[$strProperty]);
}

private function __unset($strProperty) {
 //Unset (remove) a property:
 unset($this-p_arrPublicProperties[$strProperty]);
 }

 }
 $objTest = new Test();
 print $objTest-data . \n;
 $objTest-data = bar; //Works.
 print $objTest-data;
 $objTest-id = 5; //Error: Property is read-only.
 ?

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Re: [PHP] about __get,__set Overloading, read-only properties

2007-12-20 Thread Jochem Maas 
pleae don't reply to an existing thread when posting a new question.

ked schreef:
 Hi. all , 
 
 I got a article from php 5.0 manual's comments. It's useful, offer readonly
 properties for classes. 
 
 (look at the end of this message for  the article )
 
 find out  function __construct(), I want to modify $this-id in it , then I
 got a  readonly Exception (defined in __set function).  
 
 Distinctly, a read-only property could not be change via $obj-attribute =
 ''  ,
  but is could be change via $this-id='',  inside of  class , isn't it ?
 
  How to modify __set function ?  

don't - let __set() be the policeman it's supposed to be.
either create a private function to initialize values or set the values
directly in the array

private function init($k, $v)
{
if (isset($this-p_arrPublicProperties[$k]))
$this-p_arrPublicProperties[$k]['value'] = $v;
}

 
 thanks for any advises.
 
 regards!
 ked
 
 
 the article is here: 
 
 
 Eric Lafkoff (22-Feb-2006 02:56)
 
 If you're wondering how to create read-only properties for your class, the
 __get() and __set() functions are what you're looking for. You just have to
 create the framework and code to implement this functionality. 
 Here's a quick example I've written. This code doesn't take advantage of the
 type attribute in the properties array, but is there for ideas.
 ?php
 class Test 
 {
 private $p_arrPublicProperties = array(
   id = array(value = 4,type = int,readonly = true),
   datetime = array(value = Tue 02/21/2006 20:49:23,type =
 string, readonly = true),
   data = array(value = foo, type = string, readonly =
 false)
 );
 
 //ked add!!!
 public function __construct()
 {
   $this-id = 100; //will get  exception
 !!
 }
 
 private function __get($strProperty) {
 //Get a property:
 if (isset($this-p_arrPublicProperties[$strProperty])) {
 return $this-p_arrPublicProperties[$strProperty][value];
 } else {
 throw new Exception(Property not defined);
 return false;
 }
 }
 
 private function __set($strProperty, $varValue) {
 //Set a property to a value:
 if (isset($this-p_arrPublicProperties[$strProperty])) {
 //Check if property is read-only:
 if ($this-p_arrPublicProperties[$strProperty][readonly]) {
 throw new Exception(Property is read-only);
 ///---note here
 return false;
 } else {
 $this-p_arrPublicProperties[$strProperty][value] = $varValue;
 return true;
 }
 } else {
 throw new Exception(Property not defined);
 return false;
 }
 }
 
private function __isset($strProperty) {
 //Determine if property is set:
 return isset($this-p_arrPublicProperties[$strProperty]);
}

private function __unset($strProperty) {
 //Unset (remove) a property:
 unset($this-p_arrPublicProperties[$strProperty]);
 } 
 
 }
 $objTest = new Test();
 print $objTest-data . \n;
 $objTest-data = bar; //Works.
 print $objTest-data;
 $objTest-id = 5; //Error: Property is read-only.
 ?
 

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RE: [PHP] about __get,__set Overloading, read-only properties

2007-12-20 Thread ked 

 My idea is just  your answer...happy..ing  ^_^ 

You are so warmhearted.  Thanks a lot!  : )

I will never post a question to a existing thread .

 -Original Message-
 From: Jochem Maas [mailto:[EMAIL PROTECTED] 
 Sent: Friday, December 21, 2007 9:11 AM
 To: ked
 Cc: php-general@lists.php.net
 Subject: Re: [PHP] about __get,__set Overloading, read-only properties
 
 pleae don't reply to an existing thread when posting a new question.
 
 ked schreef:
  Hi. all ,
  
  I got a article from php 5.0 manual's comments. It's useful, offer 
  readonly properties for classes.
  
  (look at the end of this message for  the article )
  
  find out  function __construct(), I want to modify 
 $this-id in it , 
  then I got a  readonly Exception (defined in __set function).
  
  Distinctly, a read-only property could not be change via 
  $obj-attribute = ''  ,  but is could be change via 
 $this-id='',  
  inside of  class , isn't it ?
  
   How to modify __set function ?  
 
 don't - let __set() be the policeman it's supposed to be.
 either create a private function to initialize values or set 
 the values directly in the array
 
 private function init($k, $v)
 {
   if (isset($this-p_arrPublicProperties[$k]))
   $this-p_arrPublicProperties[$k]['value'] = $v; }
 
  
  thanks for any advises.
  
  regards!
  ked
  
  
  the article is here: 
  
 --
  --
  
  Eric Lafkoff (22-Feb-2006 02:56)
  
  If you're wondering how to create read-only properties for 
 your class, 
  the
  __get() and __set() functions are what you're looking for. You just 
  have to create the framework and code to implement this 
 functionality.
  Here's a quick example I've written. This code doesn't take 
 advantage 
  of the type attribute in the properties array, but is 
 there for ideas.
  ?php
  class Test
  {
  private $p_arrPublicProperties = array(
  id = array(value = 4,type = int,readonly = true),
  datetime = array(value = Tue 02/21/2006 
 20:49:23,type = 
  string, readonly = true),
  data = array(value = foo, type = string, 
 readonly =
  false)
  );
  
  //ked add!!!
  public function __construct()
  {
  $this-id = 100; //will get 
  exception !!
  }
  
  private function __get($strProperty) { //Get a property:
  if (isset($this-p_arrPublicProperties[$strProperty])) { return 
  $this-p_arrPublicProperties[$strProperty][value];
  } else {
  throw new Exception(Property not defined); return false; } }
  
  private function __set($strProperty, $varValue) { //Set a 
 property to 
  a value:
  if (isset($this-p_arrPublicProperties[$strProperty])) { //Check if 
  property is read-only:
  if ($this-p_arrPublicProperties[$strProperty][readonly]) { throw 
  new Exception(Property is read-only); 
  ///---note here return 
  false; } else { 
 $this-p_arrPublicProperties[$strProperty][value] = 
  $varValue; return true; } } else { throw new 
 Exception(Property not 
  defined); return false; } }
  
 private function __isset($strProperty) {
  //Determine if property is set:
  return isset($this-p_arrPublicProperties[$strProperty]);
 }
 
 private function __unset($strProperty) {
  //Unset (remove) a property:
  unset($this-p_arrPublicProperties[$strProperty]);
  }
  
  }
  $objTest = new Test();
  print $objTest-data . \n;
  $objTest-data = bar; //Works.
  print $objTest-data;
  $objTest-id = 5; //Error: Property is read-only.
  ?
  
 
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 PHP General Mailing List (http://www.php.net/) To 
 unsubscribe, visit: http://www.php.net/unsub.php
 
 
 

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