Trim not removing end newline characters?
php
Solution
You are probably using Windows End-of-line style.
Which is `\r\n`, not just `\n`.
Try replacing both.
OR, don't specify any charlist (2nd parameter). By specifying `\n` you are saying ONLY trim `\n`
`trim($output)`
See the docs here: http://www.w3schools.com/php/func_string_trim.asp#gsc.tab=0
EDIT (from your comments):
If trim() is not working try changing your string to a byte array and examining exactly what character is at the end of your string. This is making me suspect there's some other non-printable character interfering.
$byteArray = unpack('C*', $output);
var_dump($byteArray);
http://www.asciitable.com/
Problem
This should be fairly straightforward. Say I have the following code: ``` $output = file_get_contents($random_name . ".txt"); echo "<pre>"; echo str_replace("\n", "\nN ", $output); echo "</pre>"; ``` And `$output` looks like this: ``` PDF Test File N Congratulations, your computer is equipped with a PDF (Portable Document Format) N reader! You should be able to view any of the PDF documents and forms available on N our site. PDF forms are indicated by these icons: N or. N N ``` And let's say I want to get rid of those two last newline characters, through the following: ``` $outputTrimmed = trim($output, "\n"); ``` I would assume, that would output: ``` PDF Test File N Congratulations, your computer is equipped with a PDF (Portable Document Format) N reader! You should be able to view any of the PDF documents and forms available on N our site. PDF forms are indicated by these icons: N or. ``` But instead, this code: ``` $output = file_get_contents($random_name . ".txt"); $outputTrimmed = trim($output, "\n"); echo "<pre>"; echo str_replace("\n", "\nN ", $outputTrimmed); echo "</pre>"; ``` Results in: ``` PDF Test File N Congratulations, your computer is equipped with a PDF (Portable Document Format) N reader! You should be able to view any of the PDF documents and forms available on N our site. PDF forms are indicated by these icons: N or. N N ``` What am I doing wrong? It's probably something really, really simple... so I apologize.