Re: [PHP] Programming general question
2009/1/28 Terion Miller webdev.ter...@gmail.com I googled this and didn't find an answer my question is how do you know when to use an object or array would an object just be 1 instance, and array is several things together ( I know infantile coder language I use..but I'm a baby still in this) Can someone explain objects and arrays in plain speak for me? Thanks Happy Coding Hey, Arrays: A structure to store data Example: $example = array(value1, value2, value3); echo $example[0]; // echos value1 echo $example[2]; // echos value3 Object: Something totally diffrent. A object is an instance of a class. Contains variables and methods. I don't know how you thought of using arrays or objects for the same problem? Can you give an example? Try this for arrays: http://de2.php.net/manual/en/language.types.array.php You should look for object-oriented programming to understand what an object is Then you will get help here: http://de2.php.net/manual/en/language.oop5.basic.php -eddy
Re: [PHP] Programming general question
On Wed, 2009-01-28 at 01:07 +0100, Edmund Hertle wrote: 2009/1/28 Terion Miller webdev.ter...@gmail.com I googled this and didn't find an answer my question is how do you know when to use an object or array would an object just be 1 instance, and array is several things together ( I know infantile coder language I use..but I'm a baby still in this) Can someone explain objects and arrays in plain speak for me? Thanks Happy Coding Hey, Arrays: A structure to store data Example: $example = array(value1, value2, value3); echo $example[0]; // echos value1 echo $example[2]; // echos value3 Object: Something totally diffrent. A object is an instance of a class. Contains variables and methods. I don't know how you thought of using arrays or objects for the same problem? Can you give an example? An array's functionality can be implemented as a Class with specific array instances being Objects. This allows the array to be used in polymorphic contexts and to be extended by subclasses. The same can be said for any primitive datatype. Personally, I haven't seen a need to use an Array class in PHP. That's not to say it doesn't have a purpose, but I lean towards primitives when possible for efficiency. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Programming general question
Robert Cummings wrote: On Wed, 2009-01-28 at 01:07 +0100, Edmund Hertle wrote: 2009/1/28 Terion Miller webdev.ter...@gmail.com I googled this and didn't find an answer my question is how do you know when to use an object or array would an object just be 1 instance, and array is several things together ( I know infantile coder language I use..but I'm a baby still in this) Can someone explain objects and arrays in plain speak for me? Thanks Happy Coding Hey, Arrays: A structure to store data Example: $example = array(value1, value2, value3); echo $example[0]; // echos value1 echo $example[2]; // echos value3 Object: Something totally diffrent. A object is an instance of a class. Contains variables and methods. I don't know how you thought of using arrays or objects for the same problem? Can you give an example? An array's functionality can be implemented as a Class with specific array instances being Objects. This allows the array to be used in polymorphic contexts and to be extended by subclasses. The same can be said for any primitive datatype. Personally, I haven't seen a need to use an Array class in PHP. That's not to say it doesn't have a purpose, but I lean towards primitives when possible for efficiency. Cheers, Rob. ahh i said the same until recently, and it's actually prompted me to start making some generic container classes with array accessors. simple example being, I want an array which can't have duplicates and doesn't have any kind of ordered indexing, just an array or container i can throw objects in and trust that i won't have any dups. Another example is if you want an array of objects which can only be of class/interface type x -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Programming general question
On Tue, Jan 27, 2009 at 05:18:35PM -0600, Terion Miller wrote:
I googled this and didn't find an answer
my question is how do you know when to use an object or array
would an object just be 1 instance, and array is several things together ( I
know infantile coder language I use..but I'm a baby still in this)
Can someone explain objects and arrays in plain speak for me?
An array is like in math, except that an array in PHP stores anything
you like. It's just a bunch of them together.
An object can also store a bunch of different things, but it also has
methods, which are really just functions. An array won't actually *do*
anything; you have to do things *to* it. An object can actually do stuff
at your direction. Like:
$kitchen-make_coffee('cream', 'sugar');
The object here is $kitchen, and you've told it to use its make_coffee()
method, which does something or another. You can also make those
methods private so that code outside the object can't see them.
Paul
--
Paul M. Foster
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