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

说明

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

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

参数

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.

返回值

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

更新日志

版本	说明
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.

注释

Note:
mb_regex_encoding() 指定的内部编码或字符编码将会当作此函数用的字符编码。

Warning

处理非信任的输入时从不使用 e 修饰符，就不会转码（即调用 preg_replace()）。不注意这些会很可能会导致应用程序引发远程代码执行的漏洞。

参见

mb_regex_encoding() - Set/Get character encoding for multibyte regex
mb_ereg_replace() - Replace regular expression with multibyte support

User Contributed Notes

kirilatpillaxdotcom 02-Aug-2012 09:52


To highlight words in multi-byte text:





<?php


$s = 'Алабала';


$f = 'а';


echo preg_replace('/('.$f.')/iu', '<b>$1</b>', $s);


?>

its2dark2c at yahoo dot com 20-Aug-2011 04:36


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

cat at feelthehouse dot ru 13-Sep-2008 09:27


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;


}


?>