例如:
$string = replace_first_word("some simple text",'<big>{L}</big>');
echo $string; //returns: <big>s</big>ome <big>s</big>imple <big>t</big>ext
编辑:
哦,忘了提一点,它需要使用UTF-8 Unicode ……
因为我打算用这个支持俄语和英语.
解决方法:
试试这个:
$string = preg_replace('/(?:^|\b)(\p{L})(\p{L}*)/u', '<big>$1</big>$2', 'some simple words');
function replace_first_word($str, $format) {
return preg_replace('/(?:^|\b)(\p{L})(\p{L}*)/u', str_replace('{L}', '$1', $format).'$2', $str);
}