Edit Report a Bug

    mb_eregi_replace

    (PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

    mb_eregi_replace — Replace regular expression with multibyte support ignoring case

    Description

    mb_eregi_replace(
        string $pattern,
        string $replacement,
        string $string,
        ?string $options = null
    ): string|false|null

    Scans string for matches to pattern, then replaces the matched text with replacement.

    Parameters

    pattern

    The regular expression pattern. Multibyte characters may be used. The case will be ignored.

    replacement

    The replacement text.

    string

    The searched string.

    options
    The search option. See mb_regex_set_options() for explanation.

    Return Values

    The resultant string or false on error. If string is not valid for the current encoding, null is returned.

    Changelog

    Version Description
    8.0.0 options is nullable now.
    7.1.0 The function checks whether string is valid for the current encoding.
    7.1.0 The e modifier has been deprecated.

    Notes

    Note:

    The internal encoding or the character encoding specified by mb_regex_encoding() will be used as the character encoding for this function.

    Warning

    Never use the e modifier when working on untrusted input. No automatic escaping will happen (as known from preg_replace()). Not taking care of this will most likely create remote code execution vulnerabilities in your application.

    See Also

    add a note add a note

    User Contributed Notes 3 notes

    up
    8
    kirilatpillaxdotcom
    12 years ago
    To highlight words in multi-byte text:

    <?php
    $s     = 'Алабала';
    $f = 'а';
    echo     preg_replace('/('.$f.')/iu', '<b>$1</b>', $s);
    ?>
    up
    4
    cat at feelthehouse dot ru
    16 years ago
    Transliterator for cyrillic-to-latin letters for UTF chars:

    <?php
    function do_translit($st) {
            $replacement = array(
                "й"=>"i","ц"=>"c","у"=>"u","к"=>"k","е"=>"e","н"=>"n",
                "г"=>"g","ш"=>"sh","щ"=>"sh","з"=>"z","х"=>"x","ъ"=>"\'",
                "ф"=>"f","ы"=>"i","в"=>"v","а"=>"a","п"=>"p","р"=>"r",
                "о"=>"o","л"=>"l","д"=>"d","ж"=>"zh","э"=>"ie","ё"=>"e",
                "я"=>"ya","ч"=>"ch","с"=>"c","м"=>"m","и"=>"i","т"=>"t",
                "ь"=>"\'","б"=>"b","ю"=>"yu",
                "Й"=>"I","Ц"=>"C","У"=>"U","К"=>"K","Е"=>"E","Н"=>"N",
                "Г"=>"G","Ш"=>"SH","Щ"=>"SH","З"=>"Z","Х"=>"X","Ъ"=>"\'",
                "Ф"=>"F","Ы"=>"I","В"=>"V","А"=>"A","П"=>"P","Р"=>"R",
                "О"=>"O","Л"=>"L","Д"=>"D","Ж"=>"ZH","Э"=>"IE","Ё"=>"E",
                "Я"=>"YA","Ч"=>"CH","С"=>"C","М"=>"M","И"=>"I","Т"=>"T",
                "Ь"=>"\'","Б"=>"B","Ю"=>"YU",
        );
       
        foreach(    $replacement as $i=>$u) {
                $st = mb_eregi_replace($i,$u,$st);
        }
        return     $st;
    }
    ?>
    up
    -10
    its2dark2c at yahoo dot com
    13 years ago
    when trying to find a way to strip newline from a multibyte UTF-8 string i got to this function just to discover later that POSIX don't "do" newline so i can't strip them, examples of what i tried are : \r\n , \\r\\n , (\\r\\n) (\\r|\\n)

    and got no result
    so since i wanted something like mb_nl2br() that's simple i wrote this little recursive function for UTF-8:

    <?php
    function mb_str_replace($find,$replace,&$str)
    {
    $i = mb_strpos($str,$find, 0,"UTF-8");
    if (    $index===false) {return;}
    $str = mb_substr($str, 0,$i).$replace.mb_substr($str, $i+mb_strlen($find,"UTF-8"),mb_strlen($str,"UTF-8"));
    $this->mb_str_replace($find,$replace,$str);
    }
    ?>

    note: moderate unit tesing was done, changed to other encodings
    add a note add a note
    To Top