[PHP] Classes

[Donahue Ben]

I have a ClassA file and a ClassB file stored in
separate directories.  I am trying to get ClassB to
initiate a ClassA object.  But since they are stored
in seperate directories I get an error.

So I tried including the ClassA file in ClassB
constructor:

function ClassB()
{
  include("../A/ClassA.class.php");
  ...
}

i cant get this working. How do i solve this problem
without having both class files in the same directory.

Ben 

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[PHP] fopen()

[Donahue Ben]

I have a php script that tries to write files in a
particular directory.  When the script writes files
the ownership is "apache".  The problem I have is the
particular directory that the script is trying to
create files in, it cannot, because it does not own
that directory and it is not part of the group.  So is
the only way to get around this problem is by changing
the ownership of the directory to "apache"?

Ben

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[PHP] dynamic website

[Donahue Ben]

I have a general question of a dynamic website using
PHP4 and mysql database.  If there are many, many
users visiting a dynamic website at once, will it
cause the database to be bogged down with so many
users visiting the website?  If so, how do you around
this problem.
  

  Thanks, Ben

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[PHP] uploading files

[Donahue Ben]

I am uploading a gif file using
is_upload_file($filename) function.
I save the file with a file name img1.gif.  It seems
to work fine.  But when I delete the file img1.gif
then upload a different gif file and save it as
img1.gif,  it displays the first image i uploaded not
the most recent one, why is this?  Is there a way to
get around it?

Ben

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[PHP] Image problem

[Donahue Ben]

I upload an image.  Once I upload this image using the
is_uploaded_file function, then writing this image
file using the copy function.  Everything seems to
work fine.  When i try to update (that is uploading a
new file and saving it with the same name as the first
file created) it shows the first image instead of the
second image.  So what I did was closed my browser,
then reopened it, then everything was ok.  So I figure
that I have a cache problem.  I then tried using the
clearstatcache() function right after I update this
image file.  But it did not seem to work.  So am I
going to have to close and reopen my browser to see
these changes take place or is there something else I
can do?

Ben

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[PHP] header function

[Donahue Ben]

I am using the header function what i have is this:

header("Location:
http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['PHP_SELF'])."/".$relative_url

$relative_url is a php file

when i run this script with this header function in
it, i get an error saying:"Redirection limit for this
URL has exceeded. Unable to load the requested page."

I dont understand why i get this error and how to fix
this.

Ben

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[PHP] mysql DECODE question

[Donahue Ben]

SELECT DECODE(ENCODE('password', 'sec'), 'sec') ->
password

When I try:
SELECT DECODE(ENCODE('password', 'sec'),
'SUBSTRING("secret",1,3)'); or without quotes around
SUBSTRING function

This does not produce the same output, i am not sure
what the problem is.

Ben

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[PHP] $_SESSION

[Donahue Ben]

I have some code that looks like this:

if(!session_is_registered('errors'))
  session_register('errors');

but i want to do this using the $_SESSION, i tried
doing it this way

if(!isset($_SESSION['errors']))
  session_register('errors');

but when i echo(isset($_SESSION['errors'])) it prints
false

So i am not sure how to register a variable with
$_SESSION

Ben


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