Parameter	Description
string	Required. Specifies the string to check
charlist	Optional. Specifies which characters to remove from the string. If omitted, all of the following characters are removed: "\0" - NULL "\t" - tab "\n" - new line "\x0B" - vertical tab "\r" - carriage return " " - ordinary white space

Example 1

The browser output of the code above will be:

Without trim: Hello World!
With trim: Hello World!

If you select "View source" in the browser window, you will see the following HTML:

<html>
<body>
Without trim: Hello World! <br />
With trim: Hello World!
</body>
</html>

Example 2

<?php
$str = "\r\nHello World!\r\n";
echo "Without trim: " . $str;
echo "<br />";
echo "With trim: " . trim($str);
?>

The browser output of the code above will be:

Without trim: Hello World!
With trim: Hello World!

If you select "View source" in the browser window, you will see the following HTML:

<html>
<body>
Without trim:
Hello World!
<br />With trim: Hello World!
</body>
</html>

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