php whitespace from sdtring code example

Example 1: remove empty spaces php

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

Example 2: remove every whitespace php

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

Example 3: remove whitespace from string php

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

Example 4: php remove all whitespace from a string

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