ctype_upper

(PHP 4 >= 4.0.4, PHP 5)

ctype_upper -- Check for uppercase character(s)

Descrição

bool ctype_upper ( string text )

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

Parâmetros

text

The tested string.

Valores de retornado

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

Exemplos

Exemplo 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";
    }
}
?>

O exemplo acima irá imprimir:

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.

Veja também

ctype_alpha()
ctype_lower()
setlocale()