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    PHP rtrim() Function

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    PHP rtrim() Function

    PHP rtrim() function is used to remove whitespaces form the right end of a string. It also removes other predefined characters (if specified) from the right side of a string. This function accepts two parameters out of which, one is mandatory while the other one is optional.

    Syntax:

      rtrim( $string, $charlist );

    Parameter Values

    Parameter Description
    string This is a required parameter. This parameter contains the string to be checked.
    charlist This is an optional parameter. This parameter defines which characters to remove from the string.
    • "\0" - NULL
    • "\t" - tab
    • "\n" - new line
    • "\x0B" - vertical tab
    • "\r" - carriage return
    • " " - white space

    Here is an example of rtrim() function in PHP:

    <html>
<body>

<?php
$str = "PHP                ";
echo rtrim($str);
echo "(no space)";
?>

</body>
</html>
    Output:
    PHP(no space)

    Here is an another example of rtrim() function in PHP:

    <html>
<body>

<?php
$str = "Everyone is Beautiful & Smart.";
echo $str . "<br>";
echo rtrim($str,"& Smart.");
?>

</body>
</html>
    Output:
    Everyone is Beautiful & Smart.
    Everyone is Beautiful
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