What resources or documentation should PHP developers refer to when encountering unfamiliar functions like "exit();" in their scripts?

When encountering unfamiliar functions like "exit();" in PHP scripts, developers should refer to the official PHP documentation. The PHP manual provides detailed explanations of all built-in functions, including their parameters and return values. Additionally, online resources such as Stack Overflow and PHP forums can also be helpful in understanding how to use unfamiliar functions correctly. 

// Example of using the exit(); function in PHP
$age = 25;

if ($age < 18) {
    echo "Sorry, you must be at least 18 years old to access this content.";
    exit(); // Exit the script if the age is less than 18
}

echo "Welcome! You are old enough to access this content.";

Keywords

PHP documentation exit function PHP manual function reference error handling

Related Questions