Saturday, June 7, 2008

how to convert PHP array in to PHP object ?

$a = $array("a"=> 1, "b"=> 2);

now type cast array in to object...

$arrayObj = (object)$a;

now u able to use like object and method.....

echo $arrayObj->a; // output 1
echo $arrayObj->b;// output 2

but only work with key as a string.....not work with indexed array.

How to get current PHP..?????

just simple

use a inbuilt PHP date() function and pass the time() function as a parameter....


echo date("y/m/d",time());

first parameter is date format.

and second is PHP inbuilt time() function.

List of Output Control Functions in PHP 5

o flush — Flush the output buffer
o ob_clean — Clean (erase) the output buffer
o ob_end_clean — Clean (erase) the output buffer and turn off output buffering
o ob_end_flush — Flush (send) the output buffer and turn off output buffering
o ob_flush — Flush (send) the output buffer
o ob_get_clean — Get current buffer contents and delete current output buffer
o ob_get_contents — Return the contents of the output buffer
o ob_get_flush — Flush the output buffer, return it as a string and turn off output

o ob_get_length — Return the length of the output buffer
o ob_get_level — Return the nesting level of the output buffering mechanism
o ob_get_status — Get status of output buffers
o ob_gzhandler — ob_start callback function to gzip output buffer
o ob_implicit_flush — Turn implicit flush on/off
o ob_list_handlers — List all output handlers in use
o ob_start — Turn on output buffering
o output_add_rewrite_var — Add URL rewriter values
o output_reset_rewrite_vars — Reset URL rewriter values

List of Predefined variables in PHP 5 and PHP 4

PHP5 and PHP4 provides a large number of predefined variables to all scripts.

* Superglobals — Superglobals are built-in variables that are always available in all scopes
* $GLOBALS — References all variables available in global scope
* $_SERVER — Server and execution environment information
* $_GET — HTTP GET variables
* $_POST — HTTP POST variables
* $_FILES — HTTP File Upload variables
* $_REQUEST — HTTP Request variables
* $_SESSION — Session variables
* $_ENV — Environment variables
* $_COOKIE — HTTP Cookies
* $php_errormsg — The previous error message
* $http_response_header — HTTP response headers
* $argc — The number of arguments passed to script
* $argv — Array of arguments passed to script

PHP5 Encapsulation Surprises to you ..........

In PHP5, unlike Java or C++, $this has to be explicitly used to refer to variables within a


The value of $this is determined by the context in which it is called. In certain situations

$this may actually refer to the invoking class rather then the current class. This breaks object


$this pseudo-variable is not defined if the method in which it is located is called statically

with an exception as noted below.

$this is defined if a method is called statically from within another object. In this case, the

value of $this is that of the calling object.

The following example from PHP manual will clarify this:

$b = new B();


$this is defined (a)
$this is not defined.
$this is defined (b)
$this is not defined.