Which fopen option opens the file for reading and writing; placing the file pointer at the beginning of the file without truncating it.

What is the associativity of +=?

What does the array_combine (a, b) function do?

Best practice for running MySQL queries in PHP? Consider the risk of SQL injection.

Which methods should be used for sending an email using the variables $to, $subject, and $body?

Which is used to maintain the value of a variable over different pages?

Name of the function to check the variable type is object

In mail($param1, $param2, $param3, $param4), the $param2 contains:

Which subversion of PHP5 adds short array syntax?

What is the result of : $a = 'abcd'; if(strpos('a', $a)) { return true; } else { return false; }

What's the output?