Re: [PHP] SQL Distinct-like behaviour
I don't know what I was thinking when I wrote that actually, that is so
blatantly obvious :)
Thanks Brian.
Hamza.
brian [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Marcelo de Moraes Serpa wrote:
How could I iterate over the files in a directory and build a list of
unique
filenames? Take the following filelist:
file1_01.jpg
file2_01.jpg
file2_02.jpg
file2_03.jpg
file3_01.jpg
file3_02.jpg
file3_03.jpg
file4_01.jpg
file4_02.jpg
file4_03.jpg
I would like to build an array like this: $names =
(file1,file2,file3,file4)
As mentioned, use array_unique(). But that'll only help once you've built
up an array of filenames (after trimming off the last bit). I think Jay
Hamza missed the fact that the files are *already unique*. One would be
hard-pressed to store multiple files with the same name in a directory.
So, i'm assuming your filenames wil be more like:
foo_01.jpg
foo_02.jpg
bar_01.jpg
etc. IOW, you want to perform a regexp such that you isolate the last part
to remove it before shuffling out the dupes. So:
$filenames = Array('foo_01.jpg', 'foo_02.jpg', 'bar_01.jpg', 'baz_01.jpg',
'bar_02.jpg');
$out = array_unique(preg_replace('/^([a-z]+)_[0-9]+\.jpg$/', '$1',
$filenames));
var_dump($out);
--snip--
array(3) {
[0]= string(3) foo
[2]= string(3) bar
[3]= string(3) baz
}
--snip--
Note that if you might have uppercase letters, dashes, underscores, etc.
in the filename you'll need to modify that a bit. Something like:
'/^([a-zA-Z-_]+)_[0-9]+\.jpg$/'
If you'll have more than one file extension, replace 'jpg' with '[a-z]+'
However, the array_unique call will cause, eg. both 'bar_01.jpg' and
'bar_01.png' to output 'bar' only once, which may not be what you want.
HTH,
brian
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[PHP] Re: SQL Distinct-like behaviour
$files = glob(directory/*.jpg); will give you a list of all the jpg files in the directory, $files_unique = array_unique($files); will get rid of the duplicates and create a shiny new array. Regards, Hamza. PS: glob is case-sensitive so the above will only match *.jpg, and not *.JPG Marcelo de Moraes Serpa [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] How could I iterate over the files in a directory and build a list of unique filenames? Take the following filelist: file1_01.jpg file2_01.jpg file2_02.jpg file2_03.jpg file3_01.jpg file3_02.jpg file3_03.jpg file4_01.jpg file4_02.jpg file4_03.jpg I would like to build an array like this: $names = (file1,file2,file3,file4) How could I do that ? Thanks in advance. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Render fonts
Hi Emil, Just an alternative solution you may want to consider.. Rather than converting your captions/headings to images, you can also use the sIFR Image replacement technique. Quote from the the author's description: sIFR is meant to replace short passages of plain browser text with text rendered in your typeface of choice, regardless of whether or not your users have that font installed on their systems. It accomplishes this by using a combination of javascript, CSS, and Flash. You can find more details on: http://www.mikeindustries.com/sifr/ and a demo page is located at http://www.mikeindustries.com/blog/files/sifr/2.0/ . Regards, Hamza Emil Edeholt [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Hi I would like to render some fonts into images, for captions on a site. What tools should I use to get the best looking render? Do you guys use the built-in tools PHP has, or are there third party libraries that does a better job? Thanks! Kind regards Emil -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Which CAPTCHA is the besta?
Not a script you can install/hack but why don't you have a look at: http://recaptcha.net/ ? Regards, Hamza. Tony Di Croce [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I need a CAPTCHA script Which one is the best? (I dont mind if its somewhat difficult). -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Object reference into variable?
You may find the following article interesting. It talks about object cloning, which I think what you are after... http://www.phpfreaks.com/phpmanual/page/language.oop5.cloning.html Regards, Hamza. Sándor Tamás (GMail) [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Hello, I have a question (what a surprise :-) ) I browsed the archives, but didn't find what I'm looking for. I have an object instance stored in some variable (like $myobject). I want to save this instance into another variable (like $tempobject). I thought, this will be the way: $myobject = new MyObject(); $tempobject = $myobject; (or I tried this too: $tempobject = $myobject) None of them worked, like I cannot access methods in the object: $tempobject-Foo() gives me an error: calling to method on a non-object variable. How can I tell PHP that $tempobject is a class instance of MyObject, and that I can use it's methods? Thanks, SanTa -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] How to implement a plugin system?
Nathan Nobbe [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On 8/6/07, Stut [EMAIL PROTECTED] wrote: Hamza Saglam wrote: Thanks for your response. However I am looking for something a bit more comprehensive :) I could do it as you suggested if I had only a few plugins. As I am going to add loads of plugins over the time, rather than adding all the plugins one by one, could something like a 'loader' class be implemented? What I mean by that is, it will take the requested plugin names (with their own parameters necessary) and load/initialise them. In semi-psuedo-code, it would be something like: foreach plugin suplied as the argument include the plugin initialise it end Perhaps I should change the question to: Do you think something like this would be efficient and useable? If not what sort of pattern would you follow? What you're describing is the Factory pattern, and yes that's the most efficient way to implement plugins. You should never load classes unless you need them - it's a complete waste of time, and definitely not recommended if you're going to have a lot of plugins. I would suggest you name your plugins X_plugin, Y_plugin and Z_plugin (where plugin could be anything) because that adds a level of security. Otherwise you could open yourself up to security issues because the user could instantiate any class in your system. -Stut -- http://stut.net/ Borokov Smith [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Hey Hamza, require_once($chosenPlugin . '.class.php'); $obj = new $chosenPlugin(); return $obj; And you can start from there. hth, boro Hamza Saglam schreef: Hello all, I am working on a project which needs to have some sort of plugins architecture and I am kinda stuck. Basically I want to give a list of items to the user, and according to his/her selection, I want to load relevant functionality into my application. I was thinking of having an abstract plugin class, and have the plugins implement that but then how would I actually load the plugins? Say for instance I want to load plugins X,Y,Z (and lets say i implemented them as [X|Y|Z].class.php) , should I just 'include' (or require) them? Or should I initialize all possible plugins and just pick the ones user has chosen (which sounds a bit pointless as it would load unnecessary stuff)? How would you go about doing something like this? Thanks. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php allow me to elaborate. you want to aim for composition as a flexible alternative to sub-classing to extend behavior. Namely what you want is the Strategy pattern. Strategy allows you to compose objects at run time dynamically, thereby changing behavior in your system on-the-fly. The components are made similar by a common interface, which can be either the PHP *interface* or the PHP *abstract class*. these components each encapsulate a different algorithm or module as you would call it. and the interface makes the system simple to extend. to create a new module you simply implement the interface and it is interchangeable with the other modules in the system. the factory method pattern is sort of complex. it is used to encapsulate object creation. it is typically used to instantiate objects in a *family* *of products* which is defined by a common interface, ie the strategy pattern. the factory method is used to create products in a standard way. factory method pattern goes further, in typical implementations, by using template method in a parent class. this controls the boundaries of the modules in the system. the template method invokes the a factory method on a subclass to get a concrete object. it then operates on the the concrete object in a predefined sequence. the abstract base class can define different types of methods. the base class may specify methods that must be implemented by concrete subclasses. it can also expose hook methods, with a default implementation. these methods can be optionally implemented in the subclasses. after invoking the factory method to get a concrete object the factorys template method will invoke the remaining methods, mandatory, hook or otherwise on the newly created concrete object in a predefined sequence before handing the new object to the client code that called it. http://www.phppatterns.com/docs/design/strategy_pattern http://www.phppatterns.com/docs/design/the_factory_method -nathan Hi Nathan, That all sounds quite interesting. I'll try to apply it when I'm coding my prototype :) Thanks a lot, Hamza. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Object reference into variable?
I strongly suggest you put some pressure on you web provider to at least upgrade it to the 4.4.7, as 4.2 is way too old to be secure :) Unfortunately I don't know how this could be accomplished in PHP4, but a quick google query returned these: http://www.hat.net/geeky/php_tricks_-_php_5_clone_in_php4 http://www.dgx.cz/trine/item/how-to-emulate-php5-object-model-in-php4 Someone with more experience might shed some light into this.. Regards, Hamza. Sándor Tamás (GMail) [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I forgot to tell you that I have to use PHP4.2 because of my web provider. Anything besides of _clone? SanTa - Original Message - From: Hamza Saglam To: Sándor Tamás (GMail) Sent: Tuesday, August 07, 2007 10:49 AM Subject: Re: Object reference into variable? You may find the following article interesting. It talks about object cloning, which I think what you are after... http://www.phpfreaks.com/phpmanual/page/language.oop5.cloning.html Regards, Hamza. Sándor Tamás (GMail) [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Hello, I have a question (what a surprise :-) ) I browsed the archives, but didn't find what I'm looking for. I have an object instance stored in some variable (like $myobject). I want to save this instance into another variable (like $tempobject). I thought, this will be the way: $myobject = new MyObject(); $tempobject = $myobject; (or I tried this too: $tempobject = $myobject) None of them worked, like I cannot access methods in the object: $tempobject-Foo() gives me an error: calling to method on a non-object variable. How can I tell PHP that $tempobject is a class instance of MyObject, and that I can use it's methods? Thanks, SanTa -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] How to implement a plugin system?
Hello all, I am working on a project which needs to have some sort of plugins architecture and I am kinda stuck. Basically I want to give a list of items to the user, and according to his/her selection, I want to load relevant functionality into my application. I was thinking of having an abstract plugin class, and have the plugins implement that but then how would I actually load the plugins? Say for instance I want to load plugins X,Y,Z (and lets say i implemented them as [X|Y|Z].class.php) , should I just 'include' (or require) them? Or should I initialize all possible plugins and just pick the ones user has chosen (which sounds a bit pointless as it would load unnecessary stuff)? How would you go about doing something like this? Thanks. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] How to implement a plugin system?
Hello Boro, Thanks for your response. However I am looking for something a bit more comprehensive :) I could do it as you suggested if I had only a few plugins. As I am going to add loads of plugins over the time, rather than adding all the plugins one by one, could something like a 'loader' class be implemented? What I mean by that is, it will take the requested plugin names (with their own parameters necessary) and load/initialise them. In semi-psuedo-code, it would be something like: foreach plugin suplied as the argument include the plugin initialise it end Perhaps I should change the question to: Do you think something like this would be efficient and useable? If not what sort of pattern would you follow? Warm regards, Hamza. Borokov Smith [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Hey Hamza, require_once($chosenPlugin . '.class.php'); $obj = new $chosenPlugin(); return $obj; And you can start from there. hth, boro Hamza Saglam schreef: Hello all, I am working on a project which needs to have some sort of plugins architecture and I am kinda stuck. Basically I want to give a list of items to the user, and according to his/her selection, I want to load relevant functionality into my application. I was thinking of having an abstract plugin class, and have the plugins implement that but then how would I actually load the plugins? Say for instance I want to load plugins X,Y,Z (and lets say i implemented them as [X|Y|Z].class.php) , should I just 'include' (or require) them? Or should I initialize all possible plugins and just pick the ones user has chosen (which sounds a bit pointless as it would load unnecessary stuff)? How would you go about doing something like this? Thanks. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: How to implement a plugin system?
I think I have a rough understanding of the whole process so I should start coding :) Many thanks to everyone for your suggestions. Regards, Hamza. Hamza Saglam [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Hello all, I am working on a project which needs to have some sort of plugins architecture and I am kinda stuck. Basically I want to give a list of items to the user, and according to his/her selection, I want to load relevant functionality into my application. I was thinking of having an abstract plugin class, and have the plugins implement that but then how would I actually load the plugins? Say for instance I want to load plugins X,Y,Z (and lets say i implemented them as [X|Y|Z].class.php) , should I just 'include' (or require) them? Or should I initialize all possible plugins and just pick the ones user has chosen (which sounds a bit pointless as it would load unnecessary stuff)? How would you go about doing something like this? Thanks. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
