remove whitespace from string php

<?php
$phone = preg_replace( '/\s+/', '', "01234 567890" );
echo $phone;

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

<?php
$stripped = str_replace(' ', '', "10 1000 0000 000");
echo $stripped;

$str = "\n\n\nHello World!\n\n\n";
echo "With trim: " . trim($str);

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

//remove all white spaces from a string
$whatonearth=preg_replace('/\s/','',"what o n   ear th");

<?php

$text   = "\t\tThese are a few words :) ...  ";
$binary = "\x09Example string\x0A";
$hello  = "Hello World";
var_dump($text, $binary, $hello);

print "\n";

$trimmed = trim($text);
var_dump($trimmed);

$trimmed = trim($text, " \t.");
var_dump($trimmed);

$trimmed = trim($hello, "Hdle");
var_dump($trimmed);

$trimmed = trim($hello, 'HdWr');
var_dump($trimmed);

// trim the ASCII control characters at the beginning and end of $binary
// (from 0 to 31 inclusive)
$clean = trim($binary, "\x00..\x1F");
var_dump($clean);

?>

{{ \Illuminate\Support\Str::limit($productVal, 20, $end='...') }}