Help With Arrays...

tommychi

Hi im still learning PHP and im like a complete n00bie so far. I do know a little bit of "C" and i realized "C" and PHP were pretty similar. Well here's the question about arrays that im having trouble with. Im writing just a mini image gallery script for my site that and i want to have numbers stored in an array. Now in "C" i know that you can declare how many slots you want in an array by simply doing:
int array_name[10] which means an array of integers w/ 10 slots.

Now in PHP im just wonderin how would you declare the number of slots in an array?

I just want to do this to store a certain number, lets say 100, numbers in an array so i can easily take values out and such. Any help would be appreciated.

laserlight

In PHP arrays are dynamic and types can be mixed within an array.

You can simply use
$slots = array();
and then add with say,
$slots[] = 1;

using this method one doesnt even need to explicitly declare the array.

eternalprophet

Havin a little brain fart here I am, but I think if you give say $Pictures[101] = "anythinghere";

then it will assign empty values to 0-100 (don't quote me on that, I am not 100% sure)

to see if it works, try this

<?php
$Pictures[101]="anythinghere";
$theLength= sizeof($Pictures);
echo $theLength

That should work, but I must warn you, I am a n00b, and I am very sleepy 🙂

Pig

You can determine that by how you load your array. There is no ability to set a certain number the way you are saying, but however you load it can be easily set up to limiit (such as with a for loop.

eternalprophet

Dude, I am sorry, dunno what the hell I was thinking 🙂 I am such a mormon (intentional typo on moron, no pun intended on anybody)

Doesn't look like you can explicitly declare the number of slots...unless you do a for loop and populate it with empty strings, hehe.

tommychi

how would i go about loading it this way tho? sorry im a real n00b. >,<

laserlight

Well, since it is a dynamic array, you allocate as needed, just keep track of the indices if you need to.

Conversely, you could use associative arrays.

Perhaps you should read:
http://www.php.net/manual/en/language.types.array.php