ctype_lower

(PHP 4 >= 4.0.4, PHP 5)

ctype_lower -- Check for lowercase character(s)

Leírás

bool ctype_lower ( string text )

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

Paraméterek

text

The tested string.

Visszatérési értékek

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

Példák

Példa 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";
    }
}
?>

A fenti példa a következő kimenetet adja:

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.

Lásd még

ctype_alpha()
ctype_upper()
setlocale()