Why do my inputs contain an underscore after an ARRAY?

[nothing1]

I have the function below to create a tiny url but what happens is that when i run it through I get the out comes with a undescore(_) all except the last output.

Example:
I input

http://sample1.com
http://sample2.com
http://sample3.com
http://sample4.com

I get

http://link.mysite.org/?1234
http://link.mysite.org/?4234
http://link.mysite.org/?3566
http://link.mysite.org/?6756

but when i check them I get linked to

http://link.mysite.org/?1234 => http://sample1.com_
http://link.mysite.org/?4234 => http://sample2.com_
http://link.mysite.org/?3566 => http://sample3.com_
http://link.mysite.org/?6756 => http://sample4.com

Notice that the last one doesn't have the underscore. So im thinking its the array causing problem.

[PHP]<?php
function tinyurl($url){
// Shortens a url
$html = file_get_contents("http://link.mysite.org/create.php?url=".$url);
preg_match('/http:\/\/link\.mysite\.org\/(.*)<\/b>/', $html, $matches);
return "http://link.mysite.org/".$matches[1];
}

$url = $_POST['multi_urls'];
$lines = explode("\n", $url);
foreach ($lines as $value){
echo tinyurl($value).'<br>';
}

?> [/PHP]

Please help.

[nothing1]

I never found out why it does what it does but i found a work-around. Check below.

[PHP]<?php

function tinyurl($url){
// Shortens a url
$html = file_get_contents("http://link.mysite.org/create.php?url=".$url);
preg_match('/http:\/\/link\.mysite\.org\/(.*)<\/b>/', $html, $matches);
return "http://link.mysite.org/".$matches[1];
}

$url = $_POST['multi_urls'];
$lines = explode("\n", $url);
$number = count($lines)-2;
for($i=0; $i<=$number; $i++){
$pro = substr($lines[$i], 0, -1);
echo tinyurl($pro).'<br>';
}
$last = count($lines)-1;
echo tinyurl($lines[$last]).'<br>';
?>[/PHP]

[Atli]

Hi.

Considering that a URL will rarely have a underscore at either end, you may want to try the trim() function on the $value of your foreach loop.

echo tinyurl(trim($value, "_")).'<br>';
 

[nothing1]

I was going to try trim but looking at the manual it made it seem like it will remove all the '_' in a URL which makes : http://somesite.com/which_one.php useless. I know it states only from beginning and end of string but then this example doesn't really make sense.

[PHP]
$hello = "Hello World";

$trimmed = trim($hello, "Hdle");
var_dump($trimmed);

//output: string(5) "o Wor"
[/PHP]

Thanx for the reply BTW

[Atli]

The example makes perfect sense. Take a closer look and you will see it to.

It strips all the characters listed of the beginning/end one by one, until the character at the beginning/end is not one of the characters listed.

Consider this example, and then take another look at the example you posted:

$text = "1a2text1a2";
echo trim($text, "12a");
# outputs: text
 

As to your URL problem, putting an URL through the trim function with a "_" as the second parameter will not remove underscores unless they are at the beginning or the end of the URL. (I even tested it to make sure ;)

[nothing1]

Well now I know how to use TRIM properly and you explained it pretty well. Everything is running smoothly. Thanx Again.