read an array from a file

[DrMartinus]

Hi,

I have a list of words in a file and want to know how often each item appears in this list. So I use

$cont=file($filename);
$list=array_count_values($cont);

Then I want to just get the count of each value. Let's say in the file is

top1
top2
top2
top1
top3

Then the array $list should contain:

$list[top1]=>2
$list[top2]=>2
$list[top3]=>1

Correct? But now, if I want to assign this to another variable, I don't get anything.

$c1=$list[top1];

produces an empty $c1. When I got the array $list printed, it shows a space at the end of each key, like list[top1 ], and I read that file() reads the content with the linebreaks. So I guess this is the problem. But I don't know how to avoid that. Any help would be appreciated!

[planetsim]

look up the manual for in_array() that could be what you need

[DrMartinus]

Sorry but I don't know how this could help me. in_array() tests if an item in an array exists. I know that it exists, because when I use print_r, it's there. but it seems that it carries the linebreak with it. As I said, the item of list[top1] appears like this: list[top1 ] (now, the space isn't visible so clearly - it follows the 1). I don't know how to read the value out of this key - it should be 2 (in my example).

I've tried using list[top1], as any normal person would do
I've tried including a space after the 1, and I tried including a linebreak after the 1, nothing works, I don't get the value.

[diego25]

Between the file() and array_count_values() funtions, put a for loop to loop thru each entry of the array and call trim() on it.

Diego

[DrMartinus]

Yes, this one helped. Thanks a lot!