PHP. Учебник. 2005

ctype_lower

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ctype_lower

(PHP 4 >= 4.0.4, PHP 5)ctype_lower -- Check for lowercase character(s)

Описание

bool ctype_lower ( string text )

- Checks if all of the characters in the provided string, text, are lowercase letters.

Список параметров

-

text

- The tested string.

Возвращаемые значения

- Returns TRUE if every character in text is a lowercase letter in the current locale.

Примеры

-

Пример 1. A ctype_lower() example (using the default locale) <?php $strings = array('aac123', 'qiutoas', 'QASsdks'); foreach ($strings as $testcase) { if (ctype_lower($testcase)) { echo "The string $testcase consists of all lowercase letters.\n"; } else { echo "The string $testcase does not consist of all lowercase letters.\n"; } } ?> Результат выполнения данного примера: The string aac123 does not consist of all lowercase letters. The string qiutoas consists of all lowercase letters. The string QASsdks does not consist of all lowercase letters.

Смотрите также

-

ctype_alpha()

ctype_upper()

setlocale()

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