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2

How do I remove extra spaces at the end of a string using regex (preg_replace)?

$string = "some random text with extra spaces at the end      ";
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5 Answers 5

up vote 15 down vote accepted

There is no need of regex here and you can use rtrim for it, its cleaner and faster:

$str = rtrim($str);

But if you want a regex based solution you can use:

$str = preg_replace('/\s*$/','',$str);

The regex used is /\s*$/

  • \s is short for any white space char, which includes space.
  • * is the quantifier for zero or more
  • $ is the end anchor

Basically we replace trailing whitespace characters with nothing (''), effectively deleting them.

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Instead of * quantifier, you could use + quantifier to avoid replace nothing by nothing. –  M42 Sep 21 '10 at 19:14
    
thank you very much!!! the character info is much appreciated –  Zebra Sep 21 '10 at 19:22
    
@M42, thank you! –  Zebra Sep 21 '10 at 19:24
    
+1 for rtrim as well as regex solution –  Bhavesh Gangani Sep 17 at 13:00
up vote 3 down vote

You can use rtrim

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up vote 9 down vote

You don't really need regex here, you can use the rtrim() function.

$string = "some random text with extra spaces at the end      ";
$string = rtrim($string);

Code on ideone

See also :

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Downvoter, any reason ? –  Colin Hebert Sep 21 '10 at 18:57
    
Heh, I'd like to know too, +1 to set things right with the universe. –  Gazler Sep 21 '10 at 19:14
    
+1 since this answer is maybe less fascinating, but the right one! –  Gombo Oct 24 '12 at 8:50
up vote 1 down vote

You can use trim() to do this:

http://php.net/manual/en/function.trim.php

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Sorry... missed "AT THE END". As the others pointed out... rtrim() –  Don Sep 21 '10 at 18:54
    
you can edit your answer. –  LarsH Sep 21 '10 at 18:54
    
@LarsH, Didn't want to edit it to be the same as the other in case the trim() option may work for future searchers, but point taken...thx –  Don Sep 28 '10 at 18:29
up vote 0 down vote

you can use php trim and preg_replace for this.

to see complete example click this link http://akhleshit.blogspot.com/2013/04/remove-extra-spaces-from-string-in-php.html

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