ctype_lower

(PHP 4 >= 4.0.4, PHP 5)

ctype_lower -- Check for lowercase character(s)

Popis

bool ctype_lower ( string text )

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

Seznam parametrů

text

The tested string.

Návratové hodnoty

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

Příklady

Příklad 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";
    }
}
?>

Výše uvedený příklad vypíše:

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.

Viz také

ctype_alpha()
ctype_upper()
setlocale()