Returns TRUE if every character in text is a lowercase letter in the current locale.
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"; } } ?>
This 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.
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