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()