PHP if variable

gavin.sibley · May 3, 2012

Hello,

i am new to php so sorry if this is a dumb and basic question! i need to write a script so that if the clients ip address is "allowed" it will open a media player, and if there ip address is not on the list it will display an error.

i have the code for the various different bits, just not sure how to put it all together!


if $_SERVER['REMOTE_ADDR']; is &Allowedip

&Allowedip = "127.0.0.1"

<object id="MediaPlayer" height=46 classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95" standby="Loading Windows Media Player components..." type="application/x-oleobject" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112"> 

<!-- The one required parameter is the location of your audio file, which is defined using the "filename" parameter: --> 

<param name="filename" value="">

<param name="Showcontrols" value="True">
<param name="autoStart" value="True">

<embed type="application/x-mplayer2" src="" name="MediaPlayer" width=320 height=240></embed>

<object id="MediaPlayer" height=46 classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95" standby="Loading Windows Media Player components..." type="application/x-oleobject" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112"> 

<param name="filename" value="">
<param name="Showcontrols" value="True">
<param name="autoStart" value="True">

<embed type="application/x-mplayer2" src="" name="MediaPlayer"></embed>

</object>

else
  
echo "Access denied from outsite of School"

?/>

Zephni · May 3, 2012

I think you need to look at some of the basic PHP syntax with some beginner examples.

PHP open and close tags:

<?php
  //PHP code here
?>

Variables are defined with a $ not a &:

<?php
  $variable = "Something";
?>

If syntax

<?php
  if(statement){
    //do something here
  }
} 
?>

Also, you need to tell PHP that you have finished a statement with a semi colon.

Infact looking at your code more, and more importantly the order of your code, there is a lot of work. You really should type beginners PHP tutorials into Google and go through a few basic lessons. I don't mean to sound condescending by the way, it's hard to type how I sound lol.

Edit: thought I would help anyway:

<?php
  $user_ip = $_REQUEST['REMOTE_ADDR'];

  if($user_ip == "111.111.111.111"){
    //echo out the html or exit php here
  }
?>

gavin.sibley · May 3, 2012

ok i think im getting there slowly..... haha

what i have now is this


<?php  

  $AllowedIP = "127.0.0.1";

if($ip=@$REMOTE_ADDR;){    
    
//do something here

<html>
<body>

<object id="MediaPlayer" height=46 classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95" standby="Loading Windows Media Player components..." type="application/x-oleobject" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112"> 

<!-- The one required parameter is the location of your audio file, which is defined using the "filename" parameter: --> 

<param name="filename" value="">

<param name="Showcontrols" value="True">
<param name="autoStart" value="True">

<embed type="application/x-mplayer2" src=" " name="MediaPlayer" width=320 height=240></embed>

<object id="MediaPlayer" height=46 classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95" standby="Loading Windows Media Player components..." type="application/x-oleobject" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112"> 

<param name="filename" value="">
<param name="Showcontrols" value="True">
<param name="autoStart" value="True">

<embed type="application/x-mplayer2" src="" name="MediaPlayer"></embed>

</object>

<body>
<html>


  }

else
{
     echo "Access Denied outside of School";

} 



?>

the only bit i dont know is how to make the statement. i.e if client ip equals $AllowedIP

thanks for your help,

gavin

Zephni · May 3, 2012

More like this

<?php
  $user_ip = $_REQUEST['REMOTE_ADDR'];
  $allowed_ip = "xxx.xxx.xxx.xxx"

  if($user_ip == $allowed_id){ //no semi colon here
    ?>
    Your HTML here
    <?php
  }else{
    echo "Access denied";
  }
?>

You can't just put HTML inbetween the php tags, you will need to exit php with ?> and then put your html in before starting php again with <?php

Or you can just echo out your HTML, there are other ways to but it would be best to get this concept down first

gavin.sibley · May 3, 2012

ok thanks once again for your help. i think i have done it as you said...

<?php  

  $user_ip = $_REQUEST['REMOTE_ADDR'];  
  $allowed_ip = "127.0.0.1"  

  if($user_ip == $allowed_ip){ //no semi colon here    
     ?>    

<html>
<body>

<object id="MediaPlayer" height=46 classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95" standby="Loading Windows Media Player 

components..." type="application/x-oleobject" 

codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112"> 

<!-- The one required parameter is the location of your audio file, which is defined using the "filename" parameter: --> 

<param name="filename" value="">

<param name="Showcontrols" value="True">
<param name="autoStart" value="True">

<embed type="application/x-mplayer2" src="" name="MediaPlayer" width=320 height=240></embed>

<object id="MediaPlayer" height=46 classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95" standby="Loading Windows Media Player 

components..." type="application/x-oleobject" 

codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112"> 

<param name="filename" value="">
<param name="Showcontrols" value="True">
<param name="autoStart" value="True">

<embed type="application/x-mplayer2" src="" 

name="MediaPlayer"></embed>

</object>

<body>
<html>    

<?php  

}

else
{
     echo "Access Denied outside of School";

} 

?>

however i am able to access this from any IP address, it doesnt seem to be stopping any addresses that arent registered.

thanks,

gavin

Zephni · May 3, 2012

You may want to look at http://en.wikipedia.org/wiki/Localhost

That is a localhost IP. You will want to find out your WAN IP here: http://www.whatismyip.com/

Muddy_Funster · May 3, 2012

what do you meen "any" IP address? are you changing you IP address on that computer or using other computers to access the page? What file extension does this page have? what webserver are you running? what version of PHP are you using?

gavin.sibley · May 3, 2012

Hello Zephni,

i am aware that 127.0.0.1 is the localhost IP address and when running this on my server i am changing that to the address of the computer that i want to be able to access the page. Just didnt want to post it on here with a clients IP address waving at everyone

Muddy_Funster, what i mean is that as the code stands, i am able to access this page from any web connected PC, even if that machine has a different external IP address. What i need it too do, is only show the page from my clients network (static IP address), and to everyone else just show an error message saying access denied. PHP on server is 5.3.10, is a cent OS linux box, and ive tried .php and .html.

.php comes up saying page doesnt exist

.html works and the content loads and works perfectly, apart from its showing everyone the content not just the assigned ap address.

Zephni · May 3, 2012

.... Unless you have told your page otherwise using a .htaccess or maybe another method it won't be able to proccess PHP with a .html page. I don't see why it is saying the page does not exist unless you are leaving "page.html" in the URL bar and forgot to change it to "page.php". Are you testing this on a webserver or are you running PHP on the machine?

Muddy_Funster · May 3, 2012

.php comes up saying page doesnt exist

.html works and the content loads and works perfectly, apart from its showing everyone the content not just the assigned ap address.

if you use the .html extension, unless you have made some very specific configuration settings in your PHP and apache config's, the PHP compiler will not even look at the code on the page, thus nothing in the php will be processed, thus the html is displayed regardless.

By default you must use .php extensions for your .php files so that the PHP precessor knows to action them.

gavin.sibley · May 3, 2012

testing on a webserver, definately changing the extension to .php but doesnt seem to exist! haha

Zephni · May 3, 2012

In your FTP program have you refreshed your local machine window so the file changes to a page.php file before uploading? Is the page.php file actualy appearing on your webserver?

gavin.sibley · May 3, 2012

yes the page.php is definately on the server. When loading the page it comes up saying

The website cannot display the page

HTTP 500

Most likely causes:

•The website is under maintenance.

•The website has a programming error.

however, from what i can see the code looks to be all in order.

<?php  

  $user_ip = $_REQUEST['REMOTE_ADDR'];  
  $allowed_ip = "xx.xxx.xxx.xx"  

  if($user_ip == $allowed_ip){ //no semi colon here    
     ?>    

<html>
<body>

<object id="MediaPlayer" height=46 classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95" standby="Loading Windows Media Player components..." type="application/x-oleobject" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112"> 

<!-- The one required parameter is the location of your audio file, which is defined using the "filename" parameter: --> 

<param name="filename" value="">

<param name="Showcontrols" value="True">
<param name="autoStart" value="True">

<embed type="application/x-mplayer2" src="" name="MediaPlayer" width=320 height=240></embed>

<object id="MediaPlayer" height=46 classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95" standby="Loading Windows Media Player components..." type="application/x-oleobject" codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112"> 

<param name="filename" value="">
<param name="Showcontrols" value="True">
<param name="autoStart" value="True">

<embed type="application/x-mplayer2" src="" name="MediaPlayer"></embed>

</object>

<body>
<html>
   
<?php  

}

else
{
     echo "Access Denied outside of School";

} 

?>

Zephni · May 3, 2012

Semi colon at the end of statements

Sorry as it looks like it was me who missed it in my example code...

gavin.sibley · May 3, 2012

Were getting closer! haha

the autentication of the IP address seems to be working now, but in OVERTIME! haha

it is now just blocking everyone from viewing the content, even those from within the specified IP address.

Zephni · May 3, 2012

Zephni · May 3, 2012

To test it, echo out the remote address like:

<?php
  echo $_REQUEST['REMOTE_ADDR'];
?>

If you dont get the expected result have a look at this: http://wiki.jumba.com.au/wiki/PHP_Get_user_IP_Address

gavin.sibley · May 3, 2012

This doesnt seem to be displaying anything...

Zephni · May 3, 2012

<?php
    function visitor_ip(){ 
      if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
          $TheIp=$_SERVER['HTTP_X_FORWARDED_FOR'];
      else $TheIp=$_SERVER['REMOTE_ADDR'];

      return trim($TheIp);
    }

    $user_ip = visitor_ip();
?>

Do that before the if statement happens, if you still struggle I can sort out all the code for you. But you should give it a shot first

gavin.sibley · May 3, 2012

This works perfectly, media player is working as it should and is authenticating the users on their IP address. brilliant!!

thanks so much!

Zephni · May 3, 2012

No problem, happy coding

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PHP if variable

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