fopen() and if() question

fluxdemon · Feb 27, 2003

I get a "cannot find server" error when I run this. What I intended was to test for each file and create code to display it if it exists.

<?
for($i = 1; $i < 10; ++$i)
{
$tfile = $path.$file.sprintf("%02d",$i).$ext;
$nfile = @fopen("$tfile","r&quot

;
if($nfile)
{
print $bcode.$tfile.$ecode."<br>\n";
}
}
?>

sleipnir214 · Feb 28, 2003

What values is $tfile taking? Have you output them and examined them? Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

fluxdemon · Feb 28, 2003

$tfile is a URL and $bcode/$ecode are HTML tags.

sleipnir214 · Feb 28, 2003

I am assuming that the URLs $tfile is taking work if you plug them into a browser.

If you are using URLs in fopen and getting that error, it could be that DNS isn't set up right on the machine running PHP. It could be that allow_url_fopen in php.ini is set to "off". It could be that you are trying to use a network protocol PHP doesn't understan.

Have you tried a simple script with a hard-coded URL? Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

fluxdemon · Feb 28, 2003

I tried to see what the setting was with

<html><body>
<?php phpinfo(); ?>
</body></html>

but the server gives me a "page not found" error.

fluxdemon · Feb 28, 2003

Ooops... I got phpinfo() to work and the allow_url_fopen local and master settings are set to on.

fluxdemon · Feb 28, 2003

The hard coded url works. It seems that
fopen("hardURL","r&quot

;

isnt the same as

$temp = "hardURL";
fopen("$temp","r&quot

;
or
$temp = "hardURL";
fopen($temp,"r&quot

;
or
$temp = "hardText".formatted($genNum)."hardText";
fopen($temp,"r&quot

;

but $temp = "hardText".formatted($genNum)."hardText";
will print the same as a handcoded peice of text.

My guess is fopen has a problem with strings...?

sleipnir214 · Feb 28, 2003

It should not make a difference at all.

One thing...when you output the URL to visually inspect it, did you place any kind of delimiters around the output?

For example, performing:

print '"'.$foo.'"';

rather than

print $foo;

It may be that your contatenated string has unprintable characters at its beginning or end. Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

fluxdemon · Feb 28, 2003

But this whole mess will work outside the for loop.

sleipnir214 · Feb 28, 2003

The problem is in your code somewhere, not in the fopen() function.

I recommend that you modify your script to read:

<?
print "<pre>";
for($i = 1; $i < 10; ++$i)
{
$tfile = $path.$file.sprintf("%02d",$i).$ext;
print "|".$tfile."|\n";
/*
$nfile = @fopen("$tfile","r&quot

;
if($nfile)
{
print $bcode.$tfile.$ecode."<br>\n";
}
*/
}
?>

And visually inspect all the strings your code is building. View the source of the output in a good text editor if need be. That's where the problem is. Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

fluxdemon · Feb 28, 2003

Ok. I've done that and pasted the result into TextPad. The output text looks normal. If it is the text that is causing the problem, could a TextPad (unix saved) file on a MS system still have some differences?

sleipnir214 · Feb 28, 2003

Possibly.

I know nothing at all about where the data you are contatenating comes from, so I cannot speculate further. Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

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fopen() and if() question

fluxdemon

MIS

sleipnir214

Programmer

fluxdemon

MIS

sleipnir214

Programmer

fluxdemon

MIS

fluxdemon

MIS

fluxdemon

MIS

sleipnir214

Programmer

fluxdemon

MIS

sleipnir214

Programmer

fluxdemon

MIS

sleipnir214

Programmer

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