How to remove white space from a string in PHP

Use the PHP trim() function

You can use the PHP trim() function to remove whitespace including non-breaking spaces, newlines, and tabs from the beginning and end of the string. It will not remove whitespace that occurs in the middle of the string. Let's take a look at an example to understand how it basically works:

<?php
$my_str = '    Welcome to Tutorial Republic ';
echo strlen($my_str); // Outputs: 33
$trimmed_str = trim($my_str);
echo strlen($trimmed_str); // Outputs: 28
?>

i hope it can help a lot.