How to remove space in php string

How can I strip / remove all spaces of a string in PHP?

I have a string like $string = "this is my string";

The output should be "thisismystring"

How can I do that?

How to remove space in php string

asked Jan 21, 2010 at 13:02


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Do you just mean spaces or all whitespace?

For just spaces, use str_replace:

$string = str_replace(' ', '', $string);

For all whitespace (including tabs and line ends), use preg_replace:

$string = preg_replace('/\s+/', '', $string);

(From here).


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answered Jan 21, 2010 at 13:04

Mark ByersMark Byers

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If you want to remove all whitespace:

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

See the 5th example on the preg_replace documentation. (Note I originally copied that here.)

Edit: commenters pointed out, and are correct, that str_replace is better than preg_replace if you really just want to remove the space character. The reason to use preg_replace would be to remove all whitespace (including tabs, etc.).

answered Jan 21, 2010 at 13:05


If you know the white space is only due to spaces, you can use:

$string = str_replace(' ','',$string); 

But if it could be due to space, can use:

$string = preg_replace('/\s+/','',$string);

answered Jan 21, 2010 at 13:05


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str_replace will do the trick thusly

$new_str = str_replace(' ', '', $old_str);

answered Jan 21, 2010 at 13:05

How to remove space in php string

David HeggieDavid Heggie

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Topic: PHP / MySQLPrev|Next

Answer: Use the PHP str_replace() Function

You can simply use the PHP str_replace() function to strip or remove all spaces inside a string.

Let's take a look at the following example to see how it actually works:

The above example will however only remove spaces. If you want to remove all whitespaces including tabs, newlines, etc. you can use the preg_replace() function which perform a regular expression search and replace, as demonstrated in the following example:

In the above example \t represents the tab character, whereas \n represents the newline character.

To learn more about regular expression, see the tutorial on PHP regular expressions.

Here are some more FAQ related to this topic:

  • How to extract substring from a string in PHP
  • How to combine two strings in PHP
  • How to convert a string to uppercase in PHP

How do I remove a space from a string?

To remove spaces from a string in Python, use the str..
The first argument is the string to be replaced..
The second argument is the string that replaces the string..

What is whitespace in PHP?

More Detail. The ctype_space() function in PHP check for whitespace character(s). It returns TRUE if every character in text creates some sort of white space, FALSE otherwise. Besides the blank character this also includes tab, vertical tab, line feed, carriage return and form feed characters.

Does PHP ignore whitespace?

Whitespaces are generally ignored in PHP syntax, but there are several places where you cannot put them without affecting the sense (and the result).