Declares FUSION_NULL constants to safeguard sensitive code execution.
fusion_stop( [ string $notice ] ) : void
PHPFusion uses a FUSION_NULL constant to indicate there is an impending error that is going to happen soon to your system. This constant is used throughtout the entire system and fundamentally functions to complete the PHPFusion security feature ecosystem.
When validation fails in a particular subset of inputs, other functions built into deep sensing of the declaration of FUSION_NULL constant will stop its intended function execution. This is particularly useful when developers intend to stop something from happening should such constant is being declared.
Declares FUSION_NULL in the PHPFusion system. Some important components that is built to sense FUSION_NULL are: dbquery_insert() and fusion_safe()
$notice (string) (Optional) The notification text. If present, will show a notice on page load. Default value: null
No value is returned.
An example implementation is to use fusion_stop() to halt the system, and safeguarded by the fusion_safe() function.
if (!isnum('Some bad input')) {
fusion_stop('The $number string must be a number.');
}
if (fusion_safe()) {
// ... do something data sensitive like storage or callback
}