What function can be used to retrieve an array of current options for a stream context?

What is the return value of the following code substr_compare(“foobar”, “bar”, 3);

Which elements can be encapsulated by namespaces?

What can NOT be used to send a cookie from within a PHP application?

Which combination of the following filtering techniques prevents cross-site scripting (XSS)
vulnerabilities?

Which kind of encryption is provided by PHP’s crypt functions’?

Consider the following table data and PHP code. What is the outcome?
Table data (table name “users” with primary key “Id”):

PHP code (assume the PDO connection is correctly established):

Given the following DateTime objects, what can you use to compare the two dates and indicate
that $date2 is the later of the two dates?

When a transaction reports no affected rows, it means that: (Choose 2)

Consider the following code. What can be said about the call to file_get_contents?