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how to share a variable in two php files?

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Oct 12.2005

I want to use a variable as the index of an array. In a.php, it will display the content of the array. When a “save” button is pressed in a.php, b.php will increase the variable by 1, i.e., a new row is added to the table. But I don’t know how to set the variable, because I tried use “global” or “static”, both of them don’t work. I think the manner I called the variable is wrong. But I don’t know how to do that. Can anyone help me about that? Thanks a lot!

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PHP

6 Comments(s) ↴

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@cwrathOct 12.2005 — Use sessions and just increment (etc.) the variable on b.php
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@reinmontrealauthorOct 12.2005 — I am sorry but I don't know how to use sessions. Can you give me an example, Cwrath? Thank you very much!
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@cwrathOct 12.2005 — CW will do.

Sessions? Sigh. Erm let me see....


a session takes info and stores it in a file on the server (ish) to access session data you must first use start_session, to add data to a session use the global array $_session['foo'] = 'bar'


e.g.

<?php

//page1

session_start();

$_SESSION['name'] = "CW";

echo '<a href="page2.php">P2</a>';

?>



<?php

//page two

session_start();

echo "Hello $_SESSION['name'];

?>

(havnt checked, but it should work)
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@cwrathOct 12.2005 — Oh an to destory a session (usually when somebody is loggin off) use session_destroy();
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@reinmontrealauthorOct 12.2005 — Thank you very much, Cwrath!
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@cwrathOct 13.2005 — np
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