21 lines
366 B
PHP
21 lines
366 B
PHP
<?php
|
|
|
|
// empty().
|
|
// isset().
|
|
// is_numeric().
|
|
if (
|
|
!empty($_POST['grade']) &&
|
|
isset($_POST['grade']) &&
|
|
is_numeric($_POST['grade'])
|
|
) {
|
|
$grade = $_POST['grade'];
|
|
print_r($grade);
|
|
}
|
|
else {
|
|
echo 'Grade not provided and/or was not numeric!';
|
|
}
|
|
|
|
// Strip Tags.
|
|
$text = 'Hello <b><em>world!</em></b>';
|
|
echo $text;
|
|
echo strip_tags($text); |