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ctype_upper

ctype_upper

(PHP 4 >= 4.0.4, PHP 5)

ctype_upper -- Check for uppercase character(s)

Popis

bool ctype_upper ( string text )

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

Seznam parametrů

text

The tested string.

Návratové hodnoty

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

Příklady

Příklad 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";
    }
}
?>

Výše uvedený příklad vypíše:

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.