How to Remove Spaces (or All Whitespace) from a String in PHP?

How to Remove All Spaces from a String in PHP

In PHP, you can remove all spaces from a string using either the str_replace() function or the preg_replace() function.

Using str_replace()

If you only want to remove spaces, you can use the str_replace() function. The following code snippet demonstrates how to use it:

$string = "this is my string";
$string = str_replace(' ', '', $string);
echo $string; // Output: thisismystring

Using preg_replace()

If you want to remove all whitespace characters, including spaces, tabs, and line endings, you can use the preg_replace() function. The following code snippet demonstrates how to use it:

$string = "this is my string";
$string = preg_replace('/\s+/', '', $string);
echo $string; // Output: thisismystring

The /s regular expression pattern matches one or more whitespace characters. The '' replacement string specifies that matched whitespace characters should be removed.

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