PHP. Учебник. 2005

ctype_alpha

Пред.

След.

ctype_alpha

(PHP 4 >= 4.0.4, PHP 5)ctype_alpha -- Check for alphabetic character(s)

Описание

bool ctype_alpha ( string text )


- Checks if all of the characters in the provided string, text, are alphabetic. In the standard C locale letters are just [A-Za-z] and ctype_alpha() is equivalent to (ctype_upper($text) || ctype_lower($text)) if $text is just a single character, but other languages have letters that are considered neither upper nor lower case.

Список параметров

-

text

- The tested string.

Возвращаемые значения

- Returns TRUE if every character in text is a letter from the current locale, FALSE otherwise.

Примеры

-

Пример 1. A ctype_alpha() example (using the default locale)

<?php
$strings = array('KjgWZC', 'arf12');
foreach ($strings as $testcase) {
if (ctype_alpha($testcase)) {
echo "The string $testcase consists of all letters.\n";
} else {
echo "The string $testcase does not consist of all letters.\n";
}
}
?>

Результат выполнения данного примера:
The string KjgWZC consists of all letters.

The string arf12 does not consists of all letters.

Смотрите также

-

ctype_upper()
ctype_lower()
setlocale()

Пред.

Начало

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ctype_alnum

Уровень выше

ctype_cntrl 22222

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