Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

Goto/label

Posted on 2001-09-07
4
Medium Priority
?
586 Views
Last Modified: 2012-05-04
Is there such a function like goto in PHP

I mean.. instead of calling exit() at many place in my code.. I'd like to send all 'exit()' to a single place where I could do the appropriate action (closing the DB)
0
Comment
Question by:higijj
  • 3
4 Comments
 
LVL 4

Expert Comment

by:heddesheimer
ID: 6466480
Try die() with a function name as parameter to clean up things:
http://www.php.net/manual/en/function.die.php

See Example 2 for using die with a function as parameter

Marian
0
 
LVL 2

Author Comment

by:higijj
ID: 6468941
ok.. but what if I don't want my script to die?
0
 
LVL 4

Expert Comment

by:heddesheimer
ID: 6469723
then try another question :-)

You asked in your original question 'I'd like to send all 'exit()' to a single place where I could do the appropriate action (closing the DB)' and that is what I told you.

If you want to continue the script you have to use if, while or switch

Marian
0
 
LVL 4

Accepted Solution

by:
heddesheimer earned 150 total points
ID: 6469777
Maybe it is not perfectly clear to you so I will explain in detail: exit() will cause the program to end as well as die() do. The advantage of die() with a function parameter is, that you can perform some cleanup on your script before it will end.

Ending or die()-ing a script does not mean that the user will see an error message, it will just end the page as a "normal" ending of your script will do anyway. If you use die() with a cleanup function, you should consider to print the missing ending tags (i.e. </body></html>) to generate valid html code when you exit your script.

What comes closest to a goto like you need it is a do-while with break:

<?
$test = false;
do
{
  echo "hello<br>";
  if (!$test)  break;
  echo "hallo again<br>";
} while (false);
echo "cleanup<br>";
?>

depending on the value of $test the code will go thru the while loop only once or it will break out at the if($test) condition. You can have several break statements in that loop which means (go-to the end of the do-block).

Try this code out with $test=false and $test=true to see the result.

There is (fortunately) no go-to statement implemented in php, so you need to build at lest a minimal logical structure to accomplish what you need.

Hope that will make things clearer

Marian
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Part of the Global Positioning System A geocode (https://developers.google.com/maps/documentation/geocoding/) is the major subset of a GPS coordinate (http://en.wikipedia.org/wiki/Global_Positioning_System), the other parts being the altitude and t…
Since pre-biblical times, humans have sought ways to keep secrets, and share the secrets selectively.  This article explores the ways PHP can be used to hide and encrypt information.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…
Suggested Courses

580 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question