File() and eval() help..

Joseph07

Hi,

I need to know more about file() and eval() . I've read up in php.net but don't really understand what it means. Anybody able to explain it in more details and steps ?

Really appreciate it if anyone could help me.

One more stuff is that some of the php source code that i have is input with some chinese character however i am unable to view it correctly. It shows me something like this:

<?php
//==================================
//Title: »áÔ±µÇÂ½
//Description: ÆóÒµ¶ÌÐÅ»áÔ±
//==================================
$tmp_thispath = $_SERVER["SCRIPT_NAME"];
$L_thispath = (dirname($tmp_thispath) == '/')?'logon':'logon';

$left = empty($_SESSION[corp_user])?addslashes(implode('', file("$L_thispath/default.html"))):addslashes(implode('', file("$L_thispath/success.html")));

//½âÎöÄ£°å
eval("\$left = \"$left\";");
?>

How do it go about solving this?

suntra

file() : open a file, every line is put in an array... first line is the index 0, second line is index 1, and so on.

eval() : will execute the contents of a string. WARNING : can lead to security problems, especially if using user-entered data !

Please note that what you wrote is useless ! Why would you assign the contents of $left to... $left ?!

Joseph07

This is not what i wrote. I'm try to understand this source code.

If you please, explain the following codes for me . I need to understand it.

Joseph07

The above code are saved in logon.php

As it is being required by other php files. I always got an error on other php files as well. At the top part of the webpage.

The error is:

Warning: file(./logon/success.html) [function.file]: failed to open stream: No such file or directory in C:\Program Files\xampp\htdocs\starcom\logon\logon.php on line 9

Warning: implode() [function.implode]: Bad arguments. in C:\Program Files\xampp\htdocs\starcom\logon\logon.php on line 9

I'm not sure what causes it, thus i need to understand the source code for this php file.