487 B
487 B
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Checking Required Inputs |
Checking Required Inputs
PHP has a few functions to check if the required inputs have been met. Those functions are isset
, empty
, and is_numeric
.
Checking form to make sure its set
The isset
checks to see if the field has been set and isn't null.
Example:
$firstName = $_GET['firstName']
if(isset($firstName)){
echo "firstName field is set". "<br>";
}
else{
echo "The field is not set."."<br>";
}