mb_trim

    (PHP 8 >= 8.4.0)

    mb_trim — Strip whitespace (or other characters) from the beginning and end of a string

    Description

    mb_trim(string $string, string $characters = null, string $encoding = null): string

    Performs a multi-byte safe trim() operation, and returns a string with whitespace stripped from the beginning and end of string. Without the second parameter, trim() will strip these characters:

    • " ": ASCII SP character 0x20, an ordinary space.
    • "\t": ASCII HT character 0x09, a tab.
    • "\n": ASCII LF character 0x0A, a new line (line feed).
    • "\r": ASCII CR character 0x0D, a carriage return.
    • "\0": ASCII NUL character 0x00, the NUL-byte.
    • "\v": ASCII VT character 0x0B, a vertical tab.

    Parameters

    string
    The string that will be trimmed.
    characters
    Optionally, the stripped characters can also be specified using the characters parameter. Simply list all characters that need to be stripped. With .. it is possible to specify an incrementing range of characters.
    encoding
    The string encoding.

    Return Values

    The trimmed string.

    See Also

    • mb_ltrim() - Strip whitespace (or other characters) from the beginning of a string
    • mb_rtrim() - Strip whitespace (or other characters) from the end of a string
    • trim() - Strip whitespace (or other characters) from the beginning and end of a string

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