Funcții Ctype
PHP Manual

ctype_upper

(PHP 4 >= 4.0.4, PHP 5)

ctype_upperCheck for uppercase character(s)

Descrierea

bool ctype_upper ( string $text )

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

Parametri

text

The tested string.

Valorile întoarse

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

Exemple

Example #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";
    }
}
?>

Exemplul de mai sus va afișa:

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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Funcții Ctype
PHP Manual