ctype_lower

Description

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

Parameters

Return Values

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

Examples

Example 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";     } } ?> The above example will output: 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.

See Also