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ctype_punct

(PHP 4 >= 4.0.4, PHP 5)

ctype_punct - Check for any printable character which is not whitespace or an alphanumeric character

Описание

bool ctype_punct ( string text )

Checks if all of the characters in the provided string, text, are punctuation character.

Список параметров

text

The tested string.

Возвращаемые значения

Returns TRUE if every character in text is printable, but neither letter, digit or blank, FALSE otherwise.

Примеры

Пример 1. A ctype_punct() example
$strings = array('ABasdk!@!$#', '!@ # $', '*&$()');
foreach ($strings as $testcase) {
    if (ctype_punct($testcase)) {
        echo "The string $testcase consists of all punctuation.\n";
    } else {
        echo "The string $testcase does not consist of all punctuation.\n";
    }
}

Результат выполнения данного примера:

The string ABasdk!@!$# does not consist of all punctuation.
The string !@ # $ does not consist of all punctuation.
The string *&$() consists of all punctuation.

Смотрите также: ctype_cntrl(), ctype_graph().

Описание на ru2.php.net
Описание на php.ru