ctype_upper

(PHP 4 >= 4.0.4, PHP 5)

ctype_upper -- Check for uppercase character(s)

Beskrivelse

bool ctype_upper ( string text )

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

Parameterliste

text

The tested string.

Returneringsværdier

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

Eksempler

Eksempel 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";
    }
}
?>

Ovenstående eksempel vil udskrive:

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.

Se også

ctype_alpha()
ctype_lower()
setlocale()