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@ 2014-05-31T10:35:48Z

<?php
function is_str_lowercase($str1)
   {
    for ($sc = 0; $sc < strlen($str1); $sc++) {
	      if (ord($str1[$sc]) >= ord('A') &&
          ord($str1[$sc]) <= ord('Z')) {
      return false;
         }
         }
      return true;
       }
var_dump(is_str_lowercase('abc def ghi'));
var_dump(is_str_lowercase('abc dEf ghi'));
?>

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
ord: documentation ( source)

preferences:dark modelive preview

42.73 ms | 402 KiB | 5 Q