ctype_upper

Opis

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

Parametry

Zwracane wartości

Returns TRUE if every character in text is an uppercase letter in the current locale.

Przykłady

Przykład 1. A ctype_upper() example (using the default locale) <?php $strings = array('AKLWC139', 'LMNSDO', 'akwSKWsm'); foreach ($strings as $testcase) {     if (ctype_upper($testcase)) {         echo "The string $testcase consists of all uppercase letters.\n";     } else {         echo "The string $testcase does not consist of all uppercase letters.\n";     } } ?> Powyższy przykład wyświetli: The string AKLWC139 does not consist of all uppercase letters. The string LMNSDO consists of all uppercase letters. The string akwSKWsm does not consist of all uppercase letters.

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