";
}
// max length
$max = 6;
if (strlen($value) > $max) {
echo "Validation failed.
";
}
// * type
$value = "1";
if (!is_string($value)) {
echo "Validation failed.
";
}
// * inclusion in a set
$value = "1";
$set = array("1", "2", "3", "4");
if (!in_array($value, $set)) {
echo "Validation failed.
";
}
// * uniqueness
// uses a database to check uniqueness
// * format
$value = "nobody@nowhere.com";
// preg_match is most flexible
if (!preg_match("/@/", $value)) {
echo "Validation failed.
";
}
// strpos is faster than preg_match
// use === to make exact match with false
if (strpos($value, "@") === false) {
echo "Validation failed.
";
}
?>
";
$output .= "Please fix the following errors:";
$output .= "";
foreach ($errors as $key => $error) {
$output .= "- {$error}
";
}
$output .= "
";
$output .= "";
}
return $output;
}
?>