How do I remove trailing whitespace?

If you a string that contains trailing whitespace, most commonly because it has spaces at the end of it, then you will often want to tidy it up by removing that whitespace.

The function of choice here would be chop, like so:


<?php

$contents = " I'm spaced out     ";

echo "<$contents>\n";

echo "<" . chop($contents) . ">";

< I'm spaced out     >

< I'm spaced out>

?>

Note that the trailing space has all been removed from the second line, and also that the leading space is still there... if you want to get rid of that, it's a job for trim!

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