Check for lowercase character(s) with ctype_lower in PHP
Description
The following code shows how to check for lowercase character(s) with ctype_lower.
Example
/* ww w .j av a 2s . c o m*/
<?php
$strings = array('aac123', '234234werfwer', 'QASsdks');
foreach ($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 code above generates the following result.
