Tell me is it possible to protect special characters in a query string?
Tell me how to get the value of current session id?
Tell me what is the use of mysql_real_escape_string() function?
Tell me how to strip whitespace (or other characters) from the beginning and end of a string?
Tell me what types of loops exist in php?
How can you pass a variable by reference?
How can we display the output directly to the browser?
Tell me how a constant is defined in a php script?
How can we define a variable accessible in functions of a php script?
What is the use of "ksort" in php?
Do you know when sessions ends?
What are the three classes of errors that can occur in php?
Tell me how is it possible to propagate a session id?
Explain me what is the use of 'print' in php?
Tell me what is the difference between the functions strstr() and stristr()?