    $_SERVER[&#39;REQUEST_METHOD&#39;]
    
See [the docs](http://us3.php.net/manual/en/reserved.variables.server.php). It will contain the request method upper-cased (i.e. &#39;GET&#39;, &#39;HEAD&#39;, &#39;POST&#39;, &#39;PUT&#39;).

While checking

    $_SERVER[&#39;REQUEST_METHOD&#39;]

seems the obvious choice, since some of the people are advocating safe superglobals alternatives (https://stackoverflow.com/questions/3498207/is-using-superglobals-directly-good-or-bad-in-php and similar questions), one may instead use automatic sanitizing

    filter_input( \INPUT_SERVER, &#39;REQUEST_METHOD&#39;, \FILTER_SANITIZE_SPECIAL_CHARS )

(you might of course use other filter, eg. `FILTER_SANITIZE_STRING` - see [here](https://www.php.net/manual/en/filter.filters.sanitize.php) for a full list).

Obviously, in the regular (`GET`/`POST`) case there ain&#39;t anything to sanitize, but a good habit is still a good habit IMO.

http://php.net/manual/en/reserved.variables.server.php

http://php.net/manual/en/function.filter-input.php


The unicode standard has enough code-points in it that you need 4 bytes to store them all.  That&#39;s what the UTF-32 encoding does.  Yet the UTF-8 encoding somehow squeezes these into much smaller spaces by using something called &quot;variable-width encoding&quot;.  

In fact, it manages to represent the first 127 characters of US-ASCII in just one byte which looks exactly like real ASCII, so you can interpret lots of ascii text as if it were UTF-8 without doing anything to it.  Neat trick.  So how does it work?

I&#39;m going to ask and answer my own question here because I just did a bit of reading to figure it out and I thought it might save somebody else some time.  Plus maybe somebody can correct me if I&#39;ve got some of it wrong.  


How does UTF-8 &quot;variable-width encoding&quot; work?

I am writing an article in LaTeX and I would like to display some content in two column layout. In the left column a matrix and in the right column a list of items. I have tried with tabular environment but it does not work as I want. 

My question is how to create a two column area in a LeTeX document (or something similar) and be able to put certain content to left and right column? I do not want to create a two-column layout for whole document, only for part of it.

How to display a content in two-column layout in LaTeX?

How can I find out which method (usually GET or POST) is used for the current request?

Find out HTTP method in PHP

<p>How can I find out which method (usually GET or POST) is used for the current request?</p>


I&#39;m pretty new to PHP and I am trying to figure out how to use sessions to check and see if a user is logged into a website so that they would have authorization to access specific pages.

Is this something that is complicated or is it because I am a noob that I can&#39;t figure it out?




How can I check if a user is logged-in in php?

    &lt;?php
    class Email extends Controller {

        function Email()
        {
            parent::Controller();	
            $this-&gt;load-&gt;library(&#39;email&#39;);
        }
	
        function index()
        {
            $config[&#39;protocol&#39;]    = &#39;smtp&#39;;
            $config[&#39;smtp_host&#39;]    = &#39;ssl://smtp.gmail.com&#39;;
            $config[&#39;smtp_port&#39;]    = &#39;465&#39;;
            $config[&#39;smtp_timeout&#39;] = &#39;7&#39;;
            $config[&#39;smtp_user&#39;]    = &#39;mygmail@gmail.com&#39;;
            $config[&#39;smtp_pass&#39;]    = &#39;*******&#39;;
            $config[&#39;charset&#39;]    = &#39;utf-8&#39;;
            $config[&#39;newline&#39;]    = &quot;\r\n&quot;;
            $config[&#39;mailtype&#39;] = &#39;text&#39;; // or html
            $config[&#39;validation&#39;] = TRUE; // bool whether to validate email or not		

            $this-&gt;email-&gt;initialize($config);

            $this-&gt;email-&gt;from(&#39;mygmail@gmail.com&#39;, &#39;myname&#39;);
            $this-&gt;email-&gt;to(&#39;target@gmail.com&#39;); 

            $this-&gt;email-&gt;subject(&#39;Email Test&#39;);
            $this-&gt;email-&gt;message(&#39;Testing the email class.&#39;);	

            $this-&gt;email-&gt;send();

            echo $this-&gt;email-&gt;print_debugger();

            $this-&gt;load-&gt;view(&#39;email_view&#39;);
        }
    }

I am getting this error:

    A PHP Error was encountered
    Severity: Warning
    Message: fsockopen() [function.fsockopen]: unable to connect to ssl://smtp.gmail.com:465 (Connection timed out)
    Filename: libraries/Email.php
    Line Number: 1641

Using `PORT 25/587`

I got this error:

    A PHP Error was encountered
    Severity: Warning
    Message: fsockopen() [function.fsockopen]: SSL operation failed with code 1. OpenSSL Error messages: error:140770FC:SSL routines:func(119):reason(252)
    Filename: libraries/Email.php
    Line Number: 1641

I don&#39;t want to use phpmailer now. (Actually I have tried to use phpmailer, but I failed).

How do I solve this problem guys?

Sending email with gmail smtp with codeigniter email library

PHP fatal errors come back as status code 200 to the HTTP client. How can I make it return a status code 500 (Internal server error)?

How can I get php to return 500 upon encountering a fatal exception?

I need to have a class constructor in PHP call its parent&#39;s **parent&#39;s** (grandparent?) constructor without calling the parent constructor.

    // main class that everything inherits
    class Grandpa 
    {
        public function __construct()
        {
    
        }

    }
    
    class Papa extends Grandpa
    {
        public function __construct()
        {
            // call Grandpa&#39;s constructor
            parent::__construct();
        }
    }

    class Kiddo extends Papa
    {
        public function __construct()
        {
            // THIS IS WHERE I NEED TO CALL GRANDPA&#39;S
            // CONSTRUCTOR AND NOT PAPA&#39;S
        }
    }


I know this is a bizarre thing to do and I&#39;m attempting to find a means that doesn&#39;t smell bad but nonetheless, I&#39;m curious if it&#39;s possible.


How do I get a PHP class constructor to call its parent&#39;s parent&#39;s constructor?

    function foo () {
        global $var;
        // rest of code
    }

In my small PHP projects I usually go the procedural way. I generally have a variable that contains the system configuration, and when I nead to access this variable in a function, I do `global $var;`.

Is this bad practice?

Are global variables in PHP considered bad practice? If so, why?

I&#39;ve a HTTP communication to a webserver requesting JSON data. I&#39;d like compress this data stream with `Content-Encoding: gzip`. Is there a way I can set `Accept-Encoding: gzip` in my HttpClient? The search for `gzip` in the Android References doesn&#39;t show up anything related to HTTP, as you can see [here][1].


  [1]: http://developer.android.com/search.html#q=gzip&amp;t=0

Android: HTTP communication should use &quot;Accept-Encoding: gzip&quot;

Say if I was to get shared, virtual or dedicated hosting, I read somewhere a server/machine can only handle 64,000 TCP connections at one time, is this true? How many could any type of hosting handle regardless of bandwidth? I&#39;m assuming HTTP works over TCP.

Would this mean only 64,000 users could connect to the website, and if I wanted to serve more I&#39;d have to move to a web farm?

How many socket connections can a web server handle?

If on a login screen user submits a form with their username and password, the password is sent in plain text (even with POST, correct me if I am wrong). 

What is the right way to protect the user and his password against the third party who might be eavesdropping on the communication data?

*I am aware that HTTPS is a solution to the problem, but is there any way to ensure at least some level of security using the standard HTTP protocol (POST request)? (perhaps using javascript in some way)*

What I was about was a page - that is a PHP-generated login page, which is of course sent to users in HTTP GET request as an HTML file. There is no (@Jeremy Powel) connection established between the server and the client so I can&#39;t create such a handshaking protocol. And I want the complete process to be transparent to the user - he wants to submit a password, not deal with cryptography.



How to send password securely over HTTP?

I have two HTTP services running on one machine. I just want to know if they share their cookies or whether the browser distinguishes between the two server sockets.

Are HTTP cookies port specific?

I&#39;m having a problem setting a cookie and doing a `302` redirect  
In chrome the cookie is not being set (I haven&#39;t tested safari), in other browsers I was having the same problem until I added `Path=/` to the cookie an now it works. 

This is how the header looks; the status is `302 Found`

    Content-Type	text/html; charset=iso-8859-1
    Expires	Thu, 01 Jan 1970 00:00:00 GMT
    Set-Cookie	alasca-flash=error-Message&lt;Required&lt;error-Name&lt;Required&lt;error-Sex&lt;Required&lt;error-Age&lt;Required&lt;;Path=/
    Location	/messages/sdf
    Content-Length	0
    Server	Jetty(6.1.x)

Any idea on why the cookie is not set? Or any workaround?

Content Type	Original Author	Original Content on Stackoverflow
Question	eWolf	View Question on Stackoverflow
Solution 1 - Php	Dominic Rodger	View Answer on Stackoverflow
Solution 2 - Php	user719662	View Answer on Stackoverflow

Find out HTTP method in PHP

Php Problem Overview

Php Solutions

Solution 1 - Php

Solution 2 - Php

How to display a content in two-column layout in LaTeX?

How does UTF-8 "variable-width encoding" work?

Attributions