Cutting an array in half

[smith.james0]

How do cut an array in half to make two arrays?
I have tried array_split() but i am not sure how you make two new arrays

Many thanks James

[trq]

There is no such function as array_split. What exactly does your array look like, and where do you want it split?

You could use array_slice.

[code]
<?php
  $a = array(1,2,3,4);
  $b = array_slice($a,0,1);
  $c = array_slice($a,2,3);
?>
[/code]

[smith.james0]

Sorry forgot to say I don't know the length of the array, I just need to cut the last two values of the end and use them else where.

Thanks James

[trq]

[code=php:0]
$new = array_slice($old,-2,2);
[/code]

[smith.james0]

How can a delete the values from the old array, as I don't the array keys?


Thanks James

[trq]

Ever heard of the [url=http://php.net/array]manual[/url]? You'll probably get a quicker response when you learn to use it.

[code=php:0]
array_splice($old,-2,2);
[/code]

[smith.james0]

The manual is only good if you know what your looking for, if you don't know what it's called it hard to find.


Thanks James

[trq]

[quote]if you don't know what it's called it hard to find.[/quote]

Ive never used array_slice() or array_split() in my life and I managed to find them.

Sheesh.

[Daniel0]

Then I'll learn you how :)

Ok... you have the [url=http://php.net/manual]manual[/url]. Then you ask yourself: What is my problem? And in this case the answer would be: I need to do something with arrays. Then you click on [url=http://php.net/ref.array]Array Functions[/url]. Now you read the function list. And you'll see two functions that might be useful: [quote=PHP Manual][url=http://php.net/array_slice]array_slice[/url] -- Extract a slice of the array
[url=http://php.net/array_splice]array_splice[/url] -- Remove a portion of the array and replace it with something else[/quote]
Then you go to the entry you think that solves your problem best, read the syntax and possibly examples and then you apply it to your code.

If you already know the name of the function you need help with, you just go directly to it's manual entry by typing [tt]php.net/<function name here>[/tt] in the address bar.

Always check the manual first. It's an invaluable resource ;)

[trq]

Man... sorry if I seemed at all harsh but yes, as Daniel0 has pointed out, the manual is an invaluable resource. PHP's is one of the most organised manuals Ive seen even with PHP being as bloated as it is.