eval() calling a function

rivka

I'm storing some code in the database. The code that I'm storing is a simple function call (there's a reason for this, really), that just says: makeNewURL('link.php')

In my code, I'm eval()ing the data from the database. What it's supposed to be doing is calling the function makeNewURL, but all it's doing is printing out makeNewURL('link.php').

$formtext = addslashes($row['formtext']);
eval("\$newformtext = \"$formtext\";");

//do stuff here with $newformtext

Is eval() not able to understand function calls? Or am I just having a brain fart? 😕

rivka

Just to clarify, what I'm really trying to do is parse a mixture of PHP and HTML that is coming from the database, and dump it into a variable.

So, what I want to do is take: <input name='submit' id='submit' type='button' value='Home Page' OnClick="location.href='". makeNewURL('link.php')."';">

which is being pulled from the database, and make it parsable, using:

$formtext = addslashes($row['formtext']);
eval("\$newformtext = \"$formtext\";");

Is this possible??

Weedpacket

You're having a brain fart. All your eval line is doing is putting the contents of the string $formtext into the string $newformtext. In other words, it's equivalent to

$newformtext = $formtext;

You want eval() to treat the string as code, not just stick it into another string.

eval($formtext);

rivka

Well, what I want is for the code to be eval()'d and then stuck into a new variable.

When I try what you suggest, I get the following error:

Parse error: parse error, unexpected '<' in /home/.sites/143/site2/web/php/functions.php(450) : eval()'d code on line 1

rivka

Okay, I've got it so that at least it's parsing the code, but can not figure out how to place it in a variable. Using your example of:

eval($formtext);

Prints it out to the page immediately. I need it put into a variable. Hence my original code of:

eval("\$newformtext = \"$formtext\";");

Which doesn't actually eval() the code (at least not the function call).

rivka

Got it working. Thank god for the notes in the php manual site.

ob_start();
eval('?>'.$formtext);
$formtext = ob_get_contents();
ob_end_clean();