file_exist troubles with varibles

[msi3753]

hi, i am trying to setup a script that would check a query_string to see if it matches a related file, if not then display a default file... I have tried formatting two ways....

<?	
$includepre = $QUERY_STRING;
$inc = ".inc";
$exist = $includepre.$inc;
clearstatcache();
if file_exist($exist) {
$include = $exist;
} else {
$include = "main.inc";
}
?>

and

<?	
$QUERY_STRING = $includepre;
$inc = ".inc";
$include = $includepre.$inc;
clearstatcache();
if !file_exist($include) {
$include = "main.inc";
}
?>

both give me this message

Parse error: parse error, expecting `'('' in /mg2root/web/msi.mg2.org/html/index.php on line 6

any ideas? should i try fopen? if so, any suggestions for formatting? thx 🙂

[intenz]

IF you would have read the parse error, you would have gotten this right 😉

1) it's file_exists - NOT file_exist
2) you need to put brackets around the IF statement, like if($foo == $bar) { }

Try this...

<?
$includepre = $_SERVER['QUERY_STRING'];
$inc = '.inc';
$exist = $includepre . $inc;
clearstatcache();
if(file_exists($exist))
$include = $exist;
else
$include = 'main' . $inc;
?>

Should work.

[msi3753]

thank you! you rocks... works great

[msi3753]

this did help my problem, but now i seem to have run into another one... totally unrelated but in the same project, so i decided to addon instead of make a new post... here is what i have now

<?
require ('etcdata.php');
$includepre = $_SERVER['QUERY_STRING'];
$inc = '.inc';
$exist = $includepre . $inc;
clearstatcache();
if(file_exists($exist)) {
$include = $exist;
$title = $includepre . 'title';
} else {
$include = 'main' . $inc;
$title =  $maintitle; }
?>

now this "works" perfectly fine... however, i need this line

$title = $includepre . 'title';

to be a varible, not text. does anyone have an idea on how this can be done? btw, i did tried adding '$' . of course that just put a $ in front of the text, which remained text. thx again for anyone reading this!

[the_Igel]

Hard to catch what do you mean by
"i need this line /..../ to be a variable"

But if you mean that, say, $includepre = 'aaa' and you need
$title = $aaatitle,
it's done like this: $title = ${$includepre . 'title'}

sorry if i misunderstood.

[msi3753]

thats just what i needed... thanks =) and congrads for figuring out what i was saying.... i can goto sleep peacefully now =)