ctype_lower

(PHP 4 >= 4.0.4, PHP 5)

ctype_lower -- Check for lowercase character(s)

Opis

bool ctype_lower ( string text )

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

Parametry

text

The tested string.

Zwracane wartości

Returns TRUE if every character in text is a lowercase letter in the current locale.

Przykłady

Przykład 1. A ctype_lower() example (using the default locale)

<?php
$strings
= array('aac123', 'qiutoas', 'QASsdks');
foreach (
$strings as $testcase) {
    if (
ctype_lower($testcase)) {
        echo
"The string $testcase consists of all lowercase letters.\n";
    } else {
        echo
"The string $testcase does not consist of all lowercase letters.\n";
    }
}
?>

Powyższy przykład wyświetli:

The string aac123 does not consist of all lowercase letters.
The string qiutoas consists of all lowercase letters.
The string QASsdks does not consist of all lowercase letters.

Patrz także

ctype_alpha()
ctype_upper()
setlocale()

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Generated: 2007-01-26 18:02:42