$string = preg_replace('/\s+/', '', $string);
$words = ' my words ';
$words = trim($words);
var_dump($words);
// string(8) "my words"
phpCopy<?php
$searchString = " ";
$replaceString = "";
$originalString = "This is a programming tutorial";
$outputString = preg_replace('/\s+/', '', $originalString);
echo("The original string is: $originalString \n");
echo("The string without spaces is: $outputString \n");
?>