php noob

[j.o.s.h.1408]

Hi i am trying to create a basic php page that uses the method GET to retreive some values and return something using echo

my php code is:

<?php
$screen_x = $_GET["sx"];
$screen_y = $_GET["sy"];

$version = $_GET["cur_version"];

$new_version = "1.2"

if (screen_x == "176" && screen_y == "220")
{
// check the version of the game
    if (version < new_version)
    {
        echo = "OK"." />";
        echo = "< "."http.www.google.com"." />";
        
    }

}

?>

and the link that i use is http://casino770.com/production_jon/...&cur_version=1

the problem is that i get a 403 Forbidden page everytime i try the above url link. i have read, write and execute access to the file and the server yet its giving me a forbidden error in my web browser

any suggestions? im quit new to php

[Kezzer]

echo = "OK"." />";
echo = "< "."http.www.google.com"." />";

echo is a global function, not a variable. I've never seen assignment operations using echo like that. I could be totally wrong however.

[aidanjt]

Indeed, echo is a pesudo-function, the dot performs concatination, so it wouldn't make much sense to break it up unless you're introducing variables into the string in the echo lines.

Also, make sure the page is readable by the user/group of the webserver process, otherwise you'll still get a 403 assuming the webserver is apache with the SAPI module, if it's any other webserver with the cgi php module you'll need read and execute, for safe permissions use `chmod 755 page.php'.

[moogle]

the problem is that i get a 403 Forbidden page everytime i try the above url link. i have read, write and execute access to the file and the server yet its giving me a forbidden error in my web browser

any suggestions? im quit new to php

seems that the script doesnt exist. maybe thats why your getting that error. or your just simply not allowed to run it.

[aidanjt]

seems that the script doesnt exist. maybe thats why your getting that error. or your just simply not allowed to run it.

error 404 means file isn't found. 403 is a permission error.

[moogle]

error 404 means file isn't found. 403 is a permission error.

my mistake, i tried with the php extension only.

[j.o.s.h.1408]

thanks guys i got it to work by putting a .php3 at the end of the file and instead of doing echo = blah blah i simply did

echo blah;

i have another problem:

I've tried to use this code to return either true or false. but it keeps ending up has false even though the value i entered matches the condition.

$screen_x=$_GET["sx"];
$screen_y=$_GET["sy"];
$version=$_GET["cur_version"];
$phone=$_GET["phone"];
$new_version="1.2";
$ok="OK";
$url="http.google.com";
if (strpos($phone, "Nokia") === true)
    {
        // check the version of the game
        if ($version < $new_version)
        {
            echo $ok . " /> " . "\n";
            echo $url . " />";
        }
    }
    
    else if (strpos($phone, "Samsung") === true)
    {
        // check the version of the game
        if ($version < $new_version)
        {
            echo $ok . " /> " . "\n";
            echo $url . " />";
        }
    }
else
 {
  echo "Error" . "\n" ;
 } 

here is the link to the php file:

http://casino770.com/production_jon/...=1&phone=Nokia

[aidanjt]

If you're going to use strpos, drop the "=== true", you don't really need it, any non-zero value is considered true by the 'if' statement, you could also simply do $phone === "Nokia", which would equally surffice.

[j.o.s.h.1408]

i could do $phone === "Nokia" but the problem is that the $phone will have a value of "Nokia/6680 s60 blah blah" and i want to search this string to see if it has the word nokia

[aidanjt]

Ok, well the problem with your code is that you're using the === operater instead of ==, the former makes a comparison of value and type, in the case of the string containing Nokia strpos will return the position of the string as a numerical value, which could be a 1 or a 2, or anything. operator == on the other hand would only look at the value and ignore the type, so === true would be considered false by if, and == true would be considered true, if strpos didn't find the substring then it would return boolean false instead of a non-zero numeric.

If that makes any sense.

[Kezzer]

echo $ok . " /> " . "\n"; 

Why not do...

echo $ok . " />\n"; 

?

You seem to concatenate things a lot.

[aidanjt]

Indeed, concatenations do have a slight bit of overhead involved.

[j.o.s.h.1408]

i think i know why it dont work, im using php 3 and the strpos was introduced in php 5?

[aidanjt]

According to the PHP manual strpos is present in PHP4 and PHP5:
http://www.php.net/manual/en/function.strpos.php

It would have given a runtime error if the requested function was missing, though it would be worth it to rename the file to .php instead of .php3 anyway.

[j.o.s.h.1408]

i managed to get it to work by seeing if the value is != null. it worked so i assumed that php4 is installed on the server but not php5 which has the === ?

[moogle]

i managed to get it to work by seeing if the value is != null. it worked so i assumed that php4 is installed on the server but not php5 which has the === ?

no need to assume

<?php
phpinfo();
?>