How to use HTTP Headers inside PHP? Write the statement through which it can be added?

Correct Answer: we can always fetch from one database and rewrite to another Here is a nice solution of it$db1 = mysql_connect("host","user","pwd") mysql_select_db("db1", $db1); $res1 = mysql_query("query",$db1);$db2 = mysql_connect("host","user","pwd") mysql_select_db("db2", $db2); $res2 = mysql_query("query",$db2);At this point you can only fetch records from you previous ResultSet, ie $res1 â?? But you cannot execute new query in $db1, even if you supply the link as because the link was overwritten by the new dbso at this point the following script will fail $res3 = mysql_query("query",$db1); //this will failSo how to solve that? take a look below $db1 = mysql_connect("host","user","pwd") mysql_select_db("db1", $db1); $res1 = mysql_query("query",$db1); $db2 = mysql_connect("host","user","pwd", true) mysql_select_db("db2", $db2); $res2 = mysql_query("query",$db2); So mysql_connect has another optional boolean parameter which indicates whether a link will be created or not, as we connect to the $db2 with this optional parameter set to 'true', so both link will remain live Now the following query will execute successfully $res3 = mysql_query("query",$db1);

Correct Answer: Yes, internally PHP will cast everything to the integer type, so numbers 10 and 11 will be compared

Correct Answer: Yes

Correct Answer: ActiveX DLL: It is an in process server It runs within the application time ActiveX Exe: It is an out of process server MS-Excel is an activex exe when u call the excel from the vb application u can in the task manager an excel exe will run, whereas for dll u can't see like that

Correct Answer: Ensuring Profit

Correct Answer: Following are the steps to create a simple AD rotator script without using database in PHP: - All the ad?s can be collected in one place and be displayed randomlyrand() function can be used for this purpose - In order to NOT use any database, a flat file can be used to store the ad?s - In order to store the Ad?s information (HTML code), a flat file say ?adtxt? can be created - The random number can be stored in a variable $result_random=rand(1, 100); - Conditions can be checked to display the ad?s if($result_random<=70) { echo "Display ad1"; }

Correct Answer: The function unlink() is to remove a file, where as unset() is used for destroying a variable that was declared earlier

Correct Answer: These two methods are bulid-in methods in php with construct() we can overwride the parent class method The inverse of the __construct() PHP capacity while making another class, is the __destruct() technique The __destruct() technique will consequently keep running, after you've completed with the PHP class

Correct Answer: We can send 1024 bytes utilizing GET() yet POST() can exchange extensive measure of information and POST is the protected strategy than GET technique

Correct Answer: The PHP default variable $_PHP_SELF is utilized for the PHP script name and when you click "submit" catch then same PHP script will be called