if else statement with >> functions

[smartguyin]

CAN I DO SOME THING LIKE THIS...

if (!function setup_page($title)) {
echo "NO TITLE";
}

i know this code is worng help me with this to use if else statement

[Jessica]

take out function and it will work...

[obsidian]

Basically, you can do whatever you like as long as your function is set up to return FALSE upon failure. For instance, if I was going to write a function to set my page variables for me based on title, I would do something like this:
[code]
<?php
function setup_page($title) {
  // Do all your page setup here
  if (/* something failed */) return false;
}
?>
[/code]

That way, you can always set up your function to be able to check your variables:
[code]
<?php
$Page = setup_page($title);
if (!$Page) {
  // Page was not initialized properly
}
?>
[/code]

[kenrbnsn]

What are you trying to do?  Something like this:
[code]<?php
function setup_page($ttl) {
  if (strlen($ttl) == 0) return (false);
//
//  do other work
//
  return (true);
}

if (!setup_page($title)) echo "No Title";
else {
//
// ok
//
}
?>[/code]

Ken

[smartguyin]

still i am not getting it.....

i just wanna know if the page is not having [b]setup_page($title)[/b] fucntion

then i wanna echo other thing as i explained above

[Balmung-San]

You would use:

[code]function_exists('setup_page');[/code]

That will return TRUE if the function exists.

[smartguyin]

can u please explain how to do it coz i have never used tht function before or know how to apply it...

please explain

[Balmung-San]

You'd want something like this:

[code]if (!function_exists('setup_page')) {
echo "NO TITLE";
}
[/code]

However, that will only check to see if the function setup page exists.

[Jessica]

This indicates really poor design - your functions should be in a library file, and included on every page, so you don't HAVE to check if you've included the function on that page.

[smartguyin]

jesi i know its a poor design i am learning it and this is my first project...  and will get it done correctly next time..

but for now please tell me how can i do tht

[smartguyin]

but even

if (!function_exists('setup_page')) {
echo "NO TITLE";
}

is not working .... its not showing NO TITLE...

[Balmung-San]

Then you must have the setup_page function somewhere. Is setup_page in a file that you include() or require()?

[Jessica]

No, that would mean he doesn't have the function on that page. See the !

[Balmung-San]

Oh yes, forgot about that.

In that case, remove the !.

It's quarter 'til 3 on a Monday, and I haven't had enough caffeine yet. x.x

[smartguyin]

YES I DON'T HAVE FUNCTION ON THAT ITS ON OTHER PAGE LIKE BODY.PHP WHICH COMES AFTER HEADER.PHP

THE ABOVE CODE IS IN HEADER.PHP SOO  IT DOESN'T HAVE THT FUNCTION ON SAME PAGE

[Balmung-San]

Does body.php do an include() on header.php?

If so, then yes, it will be defined.

[url=http://www.php.net/functions]This[/url] page might be useful.

[Jessica]

Don't fucking yell at us. If your problem still isn't fixed, obviously you're not explaining it well enough. Chillax and come back when you can communicate with us.

[ShogunWarrior]

Man I love how inflammatory caps lock is!

[Jessica]

AYE!

[smartguyin]

Jesi i am not yelling i mistakely kept the caps on..... if i hurt you i am sorry for those mistakely keeping Caps On.....

okay thanks for even trying.... thank you all except jesi... babes i was not Yelling on anyone... and why should i ????????/

[Jessica]

You really should look at what you've written before hitting that Post button - perhaps more of what you say would make sense if you proofread it. Then you'd catch all the misspellings, words and letters missing, and caps lock. If you actually care about what you're saying, you can take two seconds to say it right.