[PHP] PHP5 objects access/instantiation model
Hi, new to PHP5 and I have a question about the object model.
I want to be able to create a class which is allows abstraction from
specifics. So for one example, imagine a generic database connection wrapper
which can have multiple drivers depending on the database used. Some of the
functionality is generic, some is database specific (mysql_ , odbc_). So:
Class MySQL_driver {
public prop1 ;
public connect() {
echo "Foo";
}
public runquery() {
echo "Foo";
}
...
}
Class ODBC_driver {
public prop1 ;
public connect() {
echo "Foo";
}
public runquery() {
echo "Foo";
}
...
}
Class generic {
public $driver = null ;
function __construct($connection_type) {
if $this->connection_type = "MySQL" {
$this->driver = new MySQL_Driver ;
} else {
$this->driver = new ODBC_Driver ;
}
}
function authenticate { // Using the
non-generic connect() from the selected driver
$this->driver->prop1 = "fooey" // These references
work fine from within the generic class
echo $this->driver->prop1 ;
echo $this->driver->function1 ;
}
function errors { //
Reporting non-generic errors from the selected driver
}
function debug {
}
...
}
$gen = new generic("MySQL") ; //
Instantiate the generic database object, which determines its own driver
$gen->driver->prop1 = "fooey" // but they
fail from here
echo $gen->driver->prop1 ;
echo $gen->driver->function1 ;
$gen->authenticate() ; // this
works ok though, so everything is created correctly
So I want to access generic functions as $generic->authenticate(), and
database specific functions $generic->driver->runquery. This allows the top
level code to be able to be completely generic and not know anything about
the underlying database.
But I can't ! I can't find a way of accessing the encapsulated object
(driver) from the instantiator of generic. Is it possible ?
I guess there are lots of "workaround" ways. I could write lots of
"middleman" code in generic and use things like __set and __get etc but its
lots of extra overhead. I also know I could use extends but that makes the
code the wrong way around (MySQL_Driver would have to extend generic), hence
the top-level application would have to include code to determine which
driver to create rather than the db object determining its own connection
driver to use. This is true also for just lumping everything in a single
class per db type.
Surely it must be possible ? Or am I missing something ?
I also don't really get the idea of interface and abstract classes ? They
don't seem to be any practical use ? Maybe that's me ? Anyway, not really
relevant to this post ...
Please, please can someone help !!
Thanks
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[PHP] PHP5 objects access/instantiation model (correction)
OK, so that came out fairly illegible. Try again:
Hi, new to PHP5 (and the forums evidently !) and I have a question about the
object model.
I want to be able to create a class which is allows abstraction from
specifics. So for one example, imagine a generic database connection wrapper
which can have multiple drivers depending on the database used. Some of the
functionality is generic, some is database specific (mysql_ , odbc_). So:
Class MySQL_driver {
public prop1 ;
public connect() {
echo "Foo";
}
public runquery() {
echo "Foo";
}
...
}
Class ODBC_driver {
public prop1 ;
public connect() {
echo "Foo";
}
public runquery() {
echo "Foo";
}
...
}
Class generic {
public $driver = null ;
function __construct($connection_type) {
if $this->connection_type = "MySQL" {
$this->driver = new MySQL_Driver ;
} else {
$this->driver = new ODBC_Driver ;
}
}
// Using the non-generic connect() from the selected driver
function authenticate {
$this->driver->prop1 = "fooey"
// These references work fine from within
// the generic class
echo $this->driver->prop1 ;
echo $this->driver->function1 ;
}
// Report non-generic errors from the selected driver
function errors {
}
function debug {
}
...
}
$gen = new generic("MySQL") ;
// Instantiate the generic database object, which
// determines its own driver
$gen->driver->prop1 = "fooey"
// but they fail from here
echo $gen->driver->prop1 ;
echo $gen->driver->function1 ;
// this works ok though, so everything is created
// correctly
$gen->authenticate() ;
So I want to access generic functions as $generic->authenticate(), and
database specific functions $generic->driver->runquery. This allows the top
level code to be able to be completely generic and not know anything about
the underlying database.
But I can't ! I can't find a way of accessing the encapsulated object
(driver) from the instantiator of generic. Is it possible ?
I guess there are lots of "workaround" ways. I could write lots of
"middleman" code in generic and use things like __set and __get etc but its
lots of extra overhead. I also know I could use extends but that makes the
code the wrong way around (MySQL_Driver would have to extend generic), hence
the top-level application would have to include code to determine which
driver to create rather than the db object determining its own connection
driver to use. This is true also for just lumping everything in a single
class per db type.
Surely it must be possible ? Or am I missing something ?
I also don't really get the idea of interface and abstract classes ? They
don't seem to be any practical use ? Maybe that's me ? Anyway, not really
relevant to this post ...
Please, please can someone help !!
Thanks
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RE: [PHP] PHP5 objects access/instantiation model (correction)
Yeah. I've been working on re-writing it using bits from everyone !! It's a
good learning process to find out how PHP handles OOP. I thoroughly
recommend it, it's the only way to learn. Some things just can't be learnt
from the manual!
Cheers All.
-Original Message-
From: Richard Lynch [mailto:[EMAIL PROTECTED]
Sent: 11 July 2007 21:29
To: Steve Perkins
Cc: php-general@lists.php.net
Subject: Re: [PHP] PHP5 objects access/instantiation model (correction)
You probably ought to have:
class mysql_driver extends generic_driver { }
Seems like that would be the most reasonable OOP model, imho.
That said, I suspect that if you do something like:
$driver = $this->driver;
You then may be able to access the driver-specific data using
$driver->propl; etc.
On Wed, July 11, 2007 10:46 am, Steve Perkins wrote:
> OK, so that came out fairly illegible. Try again:
>
> Hi, new to PHP5 (and the forums evidently !) and I have a question
> about the object model.
>
> I want to be able to create a class which is allows abstraction from
> specifics. So for one example, imagine a generic database connection
> wrapper which can have multiple drivers depending on the database
> used. Some of the functionality is generic, some is database specific
> (mysql_ , odbc_).
> So:
>
> Class MySQL_driver {
> public prop1 ;
> public connect() {
> echo "Foo";
> }
> public runquery() {
> echo "Foo";
> }
> ...
> }
>
> Class ODBC_driver {
> public prop1 ;
> public connect() {
> echo "Foo";
> }
> public runquery() {
> echo "Foo";
> }
> ...
> }
>
> Class generic {
> public $driver = null ;
> function __construct($connection_type) {
> if $this->connection_type = "MySQL" {
> $this->driver = new MySQL_Driver ;
> } else {
> $this->driver = new ODBC_Driver ;
> }
> }
>
> // Using the non-generic connect() from the selected driver
>
> function authenticate {
> $this->driver->prop1 = "fooey"
>
> // These references work fine from within
> // the generic class
>
> echo $this->driver->prop1 ;
> echo $this->driver->function1 ;
> }
>
> // Report non-generic errors from the selected driver
>
> function errors {
> }
> function debug {
> }
>
> ...
>
> }
>
> $gen = new generic("MySQL") ;
>
> // Instantiate the generic database object, which // determines its
> own driver
>
> $gen->driver->prop1 = "fooey"
>
> // but they fail from here
>
> echo $gen->driver->prop1 ;
> echo $gen->driver->function1 ;
>
> // this works ok though, so everything is created // correctly
>
> $gen->authenticate() ;
>
>
> So I want to access generic functions as $generic->authenticate(), and
> database specific functions $generic->driver->runquery. This allows
> the top level code to be able to be completely generic and not know
> anything about the underlying database.
>
> But I can't ! I can't find a way of accessing the encapsulated object
> (driver) from the instantiator of generic. Is it possible ?
>
> I guess there are lots of "workaround" ways. I could write lots of
> "middleman" code in generic and use things like __set and __get etc
> but its lots of extra overhead. I also know I could use extends but
> that makes the code the wrong way around (MySQL_Driver would have to
> extend generic), hence the top-level application would have to include
> code to determine which driver to create rather than the db object
> determining its own connection driver to use. This is true also for
> just lumping everything in a single class per db type.
>
> Surely it must be possible ? Or am I missing something ?
>
> I also don't really get the idea of interface and abstract classes ?
> They
> don't seem to be any practical use ? Maybe that's me ? Anyway, not
> really relevant to this post ...
>
> Please, please can someone help !!
>
> Thanks
>
> --
> PHP General Mailing List (http://www.php.net/) To unsubscribe, visit:
> http://www.php.net/unsub.php
>
> --
> PHP General Mailing List (http://www.php.net/) To unsubscribe, visit:
> http://www.php.net/unsub.php
>
>
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Yeah, I get a buck. So?
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RE: [PHP] mail function from and reply to address problem
Sounds more like the mail server than PHP. Although weird anyway ! What mail server are you using : local/remote, smtp/sendmail/qmail ? Try using whatever method and send a mail through this server from outside of PHP with the same problem parameters ? Does that work ? It should either eliminate PHP, or point the finger ! I suspect eliminate but you never know.. That's where I think I'd start anyway. Send uz an update when you have some answers. Steve -Original Message- From: Tanner Postert [mailto:[EMAIL PROTECTED] Sent: 13 July 2007 00:33 To: php-general@lists.php.net Subject: [PHP] mail function from and reply to address problem I am currently running PHP 5.1.4 Fedora Core 5 i'm trying to exectute the following test script. i have about 10 or so different virtual hosts running on this machine, and if i use any of them for the from & reply-to addresses, it works fine, or even if i use domains I don't control like aol.com or example.com those work too, but one particular new virtual host doesn't work, it re-writes the from address to the default virtual host address. which is strange because that isn't in the php.ini anywhere, but it could just be taking the hostname. anyone have any ideas? thanks in advance. Tanner -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
FW: [PHP] SMS questions
Richard makes some good points. Further to the original posting though, I have a friend who works with this SMS stuff, and out of interest asked him about it. Here is his (slightly scary) response, might be of some use ... His website is www.textit,biz -Original Message- From: Shaun M. Nixon Sent: 13 July 2007 09:17 To: Steve Perkins [mailto:[EMAIL PROTECTED] Subject: FW: [PHP] SMS questions Hi Steve Hope you're doing fine. It is possible. In short, you have seen how a SMS message is sent using a operators Name label i.e. the Messages says who it's from e.g. TEXT IT, but you are unable to reply because the Sender is 'Text it' and not a mobile number. Well in the same mechanism, you can send a mobile phone number as the Label. Thus allowing you to send someone a message as if it came from someone else. I guess this is what is being asked / wanted - spoofing a Mobile. It is illegal to do this without consent and you must audit / prove ownership / identity of the phone regarding the use / service (highly regulated) - it also carries great risk to the provider (e.g. 2 Million fine from ICTICS), hence most companies reluctance etc. I believe Skype have recently introduced this service (but it's expensive) if Brian wants to try it out. We can do the same if required, as too relay all reply messages via email / texts if needed. Kind Regards Shaun Nixon Principal Consultant W: www.textit.biz -Original Message- From: Steve Perkins [mailto:[EMAIL PROTECTED] Sent: 13 July 2007 01:05 To: Shaun M. Nixon Subject: FW: [PHP] SMS questions I saw this and I though of you Shaun. You have any answers ? Cheers -Original Message- From: Brian Dunning [mailto:[EMAIL PROTECTED] Sent: 13 July 2007 00:40 To: php-general@lists.php.net Subject: [PHP] SMS questions Hi all - I've been looking at a number of the commercial service providers for bulk SMS messaging, most of whom have PHP APIs. But since they are selling something they don't answer my question Is there any (legal, legitimate) way to send an SMS message that can be replied to the desired SMS cell number? Like, if I use PHP to send an SMS to Bob, can I make it appear to come from Jim's cell phone so that Bob can reply directly to Jim normally? The services all require Jim to log into their web site to read any replies. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] SMS questions
Sorry, www.textit.biz Cheers -Original Message- From: Dan [mailto:[EMAIL PROTECTED] Sent: 13 July 2007 17:52 To: php-general@lists.php.net Subject: Re: [PHP] SMS questions Might want to retry that link, it's broken. - Dan ""Steve Perkins"" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Richard makes some good points. > > Further to the original posting though, I have a friend who works with > this SMS stuff, and out of interest asked him about it. Here is his > (slightly > scary) response, might be of some use ... > > His website is www.textit,biz > > > > -Original Message- > From: Shaun M. Nixon > Sent: 13 July 2007 09:17 > To: Steve Perkins [mailto:[EMAIL PROTECTED] > Subject: FW: [PHP] SMS questions > > Hi Steve > > Hope you're doing fine. > > It is possible. In short, you have seen how a SMS message is sent > using a operators Name label i.e. the Messages says who it's from e.g. > TEXT IT, but you are unable to reply because the Sender is 'Text it' > and not a mobile number. Well in the same mechanism, you can send a > mobile phone number as the Label. Thus allowing you to send someone a > message as if it came from someone else. I guess this is what is > being asked / wanted - spoofing a Mobile. > > It is illegal to do this without consent and you must audit / prove > ownership / identity of the phone regarding the use / service (highly > regulated) - it also carries great risk to the provider (e.g. 2 > Million fine from ICTICS), hence most companies reluctance etc. > > I believe Skype have recently introduced this service (but it's > expensive) if Brian wants to try it out. We can do the same if > required, as too relay all reply messages via email / texts if needed. > > Kind Regards > Shaun Nixon > Principal Consultant > > W: www.textit.biz > > > > -Original Message- > From: Steve Perkins [mailto:[EMAIL PROTECTED] > Sent: 13 July 2007 01:05 > To: Shaun M. Nixon > Subject: FW: [PHP] SMS questions > > I saw this and I though of you Shaun. You have any answers ? > Cheers > > > -Original Message- > From: Brian Dunning [mailto:[EMAIL PROTECTED] > Sent: 13 July 2007 00:40 > To: php-general@lists.php.net > Subject: [PHP] SMS questions > > Hi all - I've been looking at a number of the commercial service > providers for bulk SMS messaging, most of whom have PHP APIs. But > since they are selling something they don't answer my question > > Is there any (legal, legitimate) way to send an SMS message that can > be replied to the desired SMS cell number? Like, if I use PHP to send > an SMS to Bob, can I make it appear to come from Jim's cell phone so > that Bob can reply directly to Jim normally? The services all require > Jim to log into their web site to read any replies. > > -- > PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: > http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] magic quotes
Talking about .htaccess, anyone know an easy way of configuring os (generally linux/windows) alternative settings in the same .htaccess ? Mainly for paths (eg: include_path), so I can just upload a whole directory at a time from my (Windows) development machine to a (Linux) production server without having to worry about different .htaccess files for each. Ta Steve -Original Message- From: Richard Heyes [mailto:[EMAIL PROTECTED] Sent: 17 July 2007 12:25 To: Phil Princely Cc: php-general@lists.php.net Subject: Re: [PHP] magic quotes > What do people on this list usually do with this kind of problem. To > me, the .htaccess seems the easiest solution, since I don't have to > change any scripts. Use a .htaccess file, or if performance is any sort of concern, put it in the server configuration files and turn off .htaccess files. Failing that you could do it in the script with your stripslashes_array() function, but you should only do it when you need to. eg. There's no point using it on $_COOKIE if you're not using $_COOKIE. -- Richard Heyes +44 (0)844 801 1072 http://www.websupportsolutions.co.uk Knowledge Base and HelpDesk software that can cut the cost of online support -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
