How to Remove All Whitespace Characters from a String in PHP - Step by Step Examples

How to Remove All Whitespace Characters from a String in PHP ?

To remove all whitespace characters from a string in PHP, you can use the preg_replace function with a regular expression.

In this example,

We create a string variable named $str with a string value that contains whitespace characters.
We use the preg_replace function with a regular expression pattern '/\s/' to match all whitespace characters and replace them with an empty string.
We assign the result to a new variable $noWhitespaceStr.
Finally, we print the string without whitespace to standard output.

<?php
$str = "Hello World, this is PHP";
$noWhitespaceStr = preg_replace('/\s/', '', $str);
echo $noWhitespaceStr;
?>

HelloWorld,thisisPHP

In this example,

We create another string variable named $str with a different string value containing whitespace characters.
We use the preg_replace function with the same regular expression pattern '/\s/' to remove all whitespace characters.
We assign the result to a new variable $noWhitespaceStr.
Finally, we print the string without whitespace to standard output.

<?php
$str = " PHP   is   awesome! ";
$noWhitespaceStr = preg_replace('/\s/', '', $str);
echo $noWhitespaceStr;
?>

PHPisawesome!

In this tutorial, we learned How to Remove All Whitespace Characters from a String in PHP language with well detailed examples.