регистр букв в php
strtoupper
(PHP 4, PHP 5, PHP 7, PHP 8)
strtoupper — Преобразует строку в верхний регистр
Описание
Принадлежность того или иного символа к буквенным определяется с учётом текущей локали. Это означает, что, например, в используемой по умолчанию локали «C», символ ä не будет преобразован.
Список параметров
Возвращаемые значения
Возвращает строку в верхнем регистре.
Примеры
Пример #1 Пример использования strtoupper()
Примечания
Замечание: Эта функция безопасна для обработки данных в двоичной форме.
Смотрите также
User Contributed Notes 16 notes
One might think that setting the correct locale would do the trick with for example german umlauts, but this is not the case. You have to use mb_strtoupper() instead:
Here is how to make the character in upper case, except HTML-entities:
If you only need to extend the conversion by the characters of a certain language, it’s possible to control this using an environment variable to change the locale:
When using UTF-8 and need to convert to uppercase with
special characters like the german ä,ö,ü (didn’t test for french,polish,russian but think it should work, too) try this:
If you can’t find an appropriate locale setting, check your system configuration (locales are a system-wide setting, PHP gets them from the OS). On Windows, locales can be set from the Control Panel; on Linux it depends on your distribution. You can try «sudo dpkg-reconfigure locales» on Debian-based distros, or configure them manually. On Ubuntu Dapper, I had to copy entries over from /usr/share/i18n/SUPPORTED to /var/lib/locales/supported.d/local, then do the dpkg-reconfigure.
After you’re done, restart the web server.
That said, there are special cases where you want to do the conversion manually. In German, for example, the letter ‘ß’ (szlig) only exists as a lower-case character, and so doesn’t get converted by strtoupper. The convential way to express a ‘ß’ in an uppercase string is «SS». This function will take care of this exception (for Latin1 and most of Latin9, at least):
strtolower
(PHP 4, PHP 5, PHP 7, PHP 8)
strtolower — Преобразует строку в нижний регистр
Описание
Принадлежность того или иного символа к буквенным определяется с учётом текущей локали. Это означает, что, например, в используемой по умолчанию локали «C», символ Ä не будет преобразован.
Список параметров
Возвращаемые значения
Возвращает строку в нижнем регистре.
Примеры
Пример #1 Пример использования strtolower()
Примечания
Замечание: Эта функция безопасна для обработки данных в двоичной форме.
Смотрите также
User Contributed Notes 16 notes
strtolower(); doesn’t work for polish chars
for cyrillic and UTF 8 use mb_convert_case
//output is: австралия
?>
the function arraytolower will create duplicate entries since keys are case sensitive.
I prefer this method
Array
(
[test1] => asgafasdaad
[TEST2] => asddhshsdgb
[TeSt3] => asdasda@asdadadasdasdgh
)
Array
(
[test1] => asgafasdaad
[test2] => asddhshsdgb
[test3] => asdasda@asdadadasdasdgh
)
echo fullLower ( «Ã É Ò Õ ÚÙÛ» );
//results ã é ò õ úùû
//adapted from fullUpper on strtoupper manual
?>
When you’re not sure, how the current locale is set, you might find the following function useful. It’s strtolower for utf8-formatted text:
If you’re considering using the below unhtmlentities function from phpContrib, I would suggest this one as an alternative:
There’s a ucfirst «function» to make the first character uppercase, but there’s no «lcfirst» function to make the first character lowercase. Here’s my own code to accomplish this.
I found this particularly useful for generating XML nodes with the Reflection class.
Heres a small function I wrote to stop people from submitting data that is ALL IN CAPS SO THEY CAN GET MORE ATTENTION THAT THE REST OF THE USER SUBMITTED DATA on my website 🙂 If you can make it better, by all means do so. This function splits up words delimited by a space, and makes only the first letter of each word capitalized. You can easily modify it so it’s only the very first word of the string. I’ve also added some exceptions so you don’t make things like roman numerals look like «Iii» or «Xcmii» or something.
function RemoveShouting($string)
<
$lower_exceptions = array(
«to» => «1», «a» => «1», «the» => «1», «of» => «1»
);
$higher_exceptions = array(
«I» => «1», «II» => «1», «III» => «1», «IV» => «1»,
«V» => «1», «VI» => «1», «VII» => «1», «VIII» => «1»,
«XI» => «1», «X» => «1»
);
To do case insensitive comparisons in a database, strtolower() can be a quick and dirty solution:
$Sql = «SELECT * FROM tablename WHERE LOWER(column_name) = ‘».strtolower($my_var).»‘»;
the strtolower version to support most amount of languages including russian, french and so on:
To convert an entire array to lower, I prefer this method;
If you ever need to strtolower a string with href tags on it and doesn’t want to mess with the characters inside a tag, this is for you.
?>
this:
echo loweroutsidetags(‘aALalala ‘)
ucfirst
(PHP 4, PHP 5, PHP 7, PHP 8)
ucfirst — Преобразует первый символ строки в верхний регистр
Описание
Принадлежность того или иного символа к буквенным определяется с учётом текущей локали. Это означает, что, например, в используемой по умолчанию локали «C», символ ä не будет преобразован.
Список параметров
Возвращаемые значения
Возвращает результирующую строку.
Примеры
Пример #1 Пример использования ucfirst()
Смотрите также
User Contributed Notes 35 notes
Simple multi-bytes ucfirst():
A proper Turkish solution;
?>
it also check is mb support enabled or not
This is what I use for converting strings to sentence case:
print sentence_case ( ‘HMM. WOW! WHAT?’ );
// Outputs: «Hmm. Wow! What?»
?>
Here’s a function to capitalize segments of a name, and put the rest into lower case. You can pass the characters you want to use as delimiters.
Implementation of multi-bytes ucfirst for «multiword»-strings (module mbstring is required):
Improved method of capitalizing first characters of sentences.
The first two manipulations (double spaces & all caps) are optional so can be removed without harm.
plemieux’ function did not work for me without passing the encoding to every single mb function (despite ini_set(‘default_charset’, ‘utf-8’) at the top of the script). This is the example that works in my application (PHP 4.3):
For some reason this worked for me.
Mac OS 10.5.1
PHP 5.2.6
Here is the fixed function for Turkish alphabet..
for anyone wanting to ucfirst each word in a sentence this works for me:
For lithuanian text with utf-8 encoding I use two functions (thanks [mattalexxpub at gmail dot com] and Svetoslav Marinov)
My version, converst first letter of the first word in the string to uppercase
public function mb_ucfirst($str) <
$aParts = explode(» «,$str);
$firstWord = mb_convert_case($aParts[0],MB_CASE_TITLE,»UTF-8″);
unset($aParts[0]);
I made a small change. Now it takes care of points in numbers
if you want to ucfirst for utf8 try this one:
( «UTF-8» );
mb_regex_encoding ( «UTF-8» );
function RemoveShouting($string)
<
$lower_exceptions = array(
«to» => «1», «a» => «1», «the» => «1», «of» => «1»
);
$higher_exceptions = array(
«I» => «1», «II» => «1», «III» => «1», «IV» => «1»,
«V» => «1», «VI» => «1», «VII» => «1», «VIII» => «1»,
«XI» => «1», «X» => «1»
);
Using this function for Turkish language is won’t work because of multi-byte characters. But you can use some tricks:
here is how mb_ucfirst should be implemented in userland
@adefoor, Ken and Zee
This is a simple code to get all the ‘bad words’, stored in a database, out of the text. You could use str_ireplace but since that’s installed on PHP5 only, this works as well. It strtolowers the text first then places capitals with ucfirst() where it thinks a capital should be placed, at a new sentence. The previous sentence is ended by ‘. ‘ then.
Ah, the last code were spoiled, here is the fixed one:
?>
So, this function changes also other letters into uppercase, ucfirst() does only change: a-z to: A-Z.
Note: the return for this function changed in versions 4.3 when a string is passed of length 0. In 4.3 a string of length 0 is returned.
Results for 4.3:
string(0) «» string(4) «Owen»
In the event you sort of need multiple delimiters to apply the same action to, you can preg_replace this «second delimiter» enveloping it with your actual delimiter.
A for instance, would be if you wanted to use something like Lee’s FormatName function in an input box designed for their full name as this script was only designed to check the last name as if it were the entire string. The problem is that you still want support for double-barreled names and you still want to be able to support the possibility that if the second part of the double-barreled name starts with «mc», that it will still be formatted correctly.
This example does a preg_replace that surrounds the separator with your actual delimiter. This is just a really quick alternative to writing some bigger fancier blah-blah function. If there’s a shorter, simpler way to do it, feel free to inform me. (Emphasis on shorter and simpler because that was the whole point of this.) 😀
Here’s the example. I’ve removed Lee’s comments as not to confuse them with my own.
mb_convert_case
(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
mb_convert_case — Производит смену регистра символов в строке
Описание
Список параметров
Строка ( string ) для преобразования.
Возвращаемые значения
Список изменений
Примеры
Пример #1 Пример использования mb_convert_case()
Пример #2 Пример использования mb_convert_case() с нелатинским UTF-8 текстом
Примечания
Дополнительную информацию о свойствах Юникода смотрите по ссылке» http://www.unicode.org/reports/tr21/.
Смотрите также
User Contributed Notes 9 notes
as the previouly posted version of this function doesn’t handle UTF-8 characters, I simply tried to replace ucfirst to mb_convert_case, but then any previous case foldings were lost while looping through delimiters.
So I decided to do an mb_convert_case on the input string (it also deals with words is uppercase wich may also be problematic when doing case-sensitive search), and do the rest of checking after that.
As with mb_convert_case, words are capitalized, I also added lowercase convertion for the exceptions, but, for the above mentioned reason, I left ucfirst unchanged.
Now it works fine for utf-8 strings as well, except for string delimiters followed by an UTF-8 character («Mcádám» is unchanged, while «mcdunno’s» is converted to «McDunno’s» and «ökrös-TÓTH éDUa» in also put in the correct form)
I use it for checking user input on names and addresses, so exceptions list contains some hungarian words too.
ucwords
(PHP 4, PHP 5, PHP 7, PHP 8)
ucwords — Преобразует в верхний регистр первый символ каждого слова в строке
Описание
Список параметров
Необязательный параметр separators содержит символы разделителей слов.
Возвращаемые значения
Возвращает модифицированную строку.
Примеры
Пример #1 Пример использования ucwords()
Пример #2 Пример ucwords() с заданным разделителем
Пример #3 Пример использования ucwords() с дополнительными разделителями
Примечания
Замечание: Функция зависит от локали и будет обрабатывать ввод в соответствии с текущим установленным языковым стандартом. Однако она работает только с однобайтовыми наборами символов. Если вам нужно использовать многобайтовые символы (большинство языков, не входящих в Западную Европу), обратите внимание на модули multibyte или intl вместо нее.
Замечание: Эта функция безопасна для обработки данных в двоичной форме.
Смотрите также
User Contributed Notes 28 notes
My quick and dirty ucname (Upper Case Name) function.
//PRINTS:
/*
Jean-Luc Picard
Miles O’Brien
William Riker
Geordi La Forge
Beverly Crusher
*/
?>
You can add more delimiters in the for-each loop array if you want to handle more characters.
Para formatar nomes em pt-br:
Some recipes for switching between underscore and camelcase naming:
UTF-8 Title Case that works for me even with hyphens involved!
$str = ‘ĐaaČaa-AAAaaa, BBbb’;
$str = mb_convert_case($str, MB_CASE_TITLE, «UTF-8»);
echo($str): ‘Đaačaa-Aaaaaa, Bbbb’
In the function ucsmart() posted by ieure at php dot net on 04-Dec-2005 11:57, I found a similar problem in this function to what he found in igua’s.
Actually, it did end up changing the content for me (php 5.0.4) in the way that this function escapes a single quotation (apostrophe) in the MIDDLE of a word.
The fix is simple however, and merely requires fine-tuning the regular expression:
This will not escape a single quotation mark which occurs in the middle of a word. Though, you may find that might need to add other characters inside the regular expression if you use other special characters inside your words and if you get funky output.
It’s a great expression though! Simple, yet very powerful. Kudos!
Features:
— multi byte compatible
— handles multiple delimiters
Relating to the mb_ucwords() function posted by Anonymous. In order for this to actually be multi-byte compliant, you would also need to use mb_substr() and mb_strlen() instead of substr and strlen respectively.
Here it is corrected and extended even further to allow multiple word separators and a list of exceptions to correct after title casing. It’s a bit tedious and inelegant, but things frequently are when dealing with human languages.
function mb_ucwords($str) <
$exceptions = array();
$exceptions[‘Hp’] = ‘HP’;
$exceptions[‘Ibm’] = ‘IBM’;
$exceptions[‘Gb’] = ‘GB’;
$exceptions[‘Mb’] = ‘MB’;
$exceptions[‘Cd’] = ‘CD’;
$exceptions[‘Dvd’] = ‘DVD’;
$exceptions[‘Usb’] = ‘USB’;
$exceptions[‘Mm’] = ‘mm’;
$exceptions[‘Cm’] = ‘cm’;
// etc.
Turkish character with the ucwords function.
echo ucwords_tr ( ‘ŞEKardi ŞEMŞİYE ĞELENÖ ÖMER’ ); // Şekardi Şemşiye Ğelenö Ömer
echo ucwords_tr ( ‘şEKER iMSAK şÖLEN’ ); // Şeker İmsak Şölen
To avoid this i use a small function adding and deleting blanks behind these chars, and using ucwords() in between:
ucwords for UTF-8 strings:
«ieure at php dot net», your idea is pure poetry!
// captialize all first letters
$str = preg_replace(‘/\\b(\\w)/e’, ‘strtoupper(«$1»)’, strtolower(trim($str)));
ucwords for human names in Brazil.
ucwords personalizada para nomes próprios brasileiros.
Thanks a lot brother.
I tested it with a few variations. It works perfectly. Its really great and simple usage of the existing functions. It would be glad to all PHP folks and good to PHP if these kind of functions will be in PHP library on upcoming releases.
= «mark-yves robert» ;
$name2 = «mark-yves robert-bryan» ;
echo ‘
Name 2 (mark-yves robert-bryan)
?>
Proud to be a PHP enthusiast always 🙂
A very easy way to convert to title case:
function titleCase($string)
<
return ucwords(strtolower($string));
>
$myString = «SOME TEXT»;
//will print, «My Text»
Here is a function to capitalize a last name, accounting for hyphens, apostrophes, «Mc» and «Mac»:
This seems to be what people want:
[ed note: fixed the code to be correct]
The code posted above by Joerg Krause only works for a string which ends with one of the delimiters. A possible fix is:
I did the same thing as Catalin, but for French names.
Here’s what I’m doing :
This complies with the French rules for capitalization in names.
Sample results :
-d’Afoo Bar
-de Foo Bar
-O’Foo Bar
-Foo’bar
Based on code sample originally posted by «Anonymous» on 2005-12-14. The /e modifier is no longer supported by preg_replace(). Rewritten to use preg_replace_callback() instead. Tested with PHP 7.3.
// Trim whitespace and convert to lowercase
$str = strtolower(trim($string));