<?php echo "Program to change case of input string ...\n"; $title = readline("Enter Any String:"); echo "In Upper Case : " . strtoupper($title)."\n"; echo "In Lower Case : " . strtolower($title)."\n"; echo "First Letter Capital :" . ucfirst($title)."\n"; echo "Title Case :" . ucwords($title); ?> <?php echo "Program to check for a valid non-empty string.\n"; $title = readline("Enter Any String:"); if (isset($title) && trim($title) != "") echo "String is not empty!\n"; else
