CODEWITHSUNDEEP
phpfileexists
Akos
Akos

Reputation: 2007

PHP File exists not working?

I would like to check if a page exists. My file is article.php . The article's URLs are article.php?id=1 article.php?id=2 etc. But when I check it this way it doesn't work:

$filecheck = "article.php?id=$id";
if (file_exists($filecheck)) {
echo "This article exists.";
} else {
echo "Sorry this article does not exist.";
}

But it always returns "Sorry this article does not exist." How could I fix this?

Upvotes: 1

Views: 1483

Answers (5)

George Velez
George Velez

Reputation: 79

Well the reason it is not finding the file is because you have a querystring in it. If you are by chance getting this data from some other source and can't control if a querystring is sent with it then you can do this:

$yourFile = 'article.php?id=$id'; // Or wherever you get this value from
$yourFile = strstr( $yourFile , '?' , TRUE );

echo $yourFile; // now has a value of article.php

Upvotes: 1

Adam Stacey
Adam Stacey

Reputation: 2831

The file "article.php?id=$id" will not exist as it is not a physical file.

I am assuming that you are using the $id to find an article that exists in a database. If this is the case then the file_exists function is not what you need.

What you will need to do is write a quick MySQL statement to check if the article exists and then go from there.

Something like this perhaps:

$query = "SELECT * FROM articles WHERE id='$id'";
$result = mysql_query($query);

// Check if result is there (ie article exists)
if ($result) {
    echo "This article exists.";
} else {
    echo "Sorry this article does not exist.";
}

I hope that helps. Let me know if you need anything else.

Upvotes: 1

Tarik
Tarik

Reputation: 81721

If they are physical page instead of dynamically created content use this way:

$filecheck = "article_1.php"

if (file_exists($filecheck)) {
echo "This article exists.";
} else {
echo "Sorry this article does not exist.";
}

Otherwise check the ID whether it is in the DB.

Upvotes: 1

PeeHaa
PeeHaa

Reputation: 72672

It's because there is no file called: article.php?id=$id

There probably is a file called: article.php though :)

Upvotes: 1

Alex Turpin
Alex Turpin

Reputation: 47776

Don't pass the query string to it.

$filecheck = 'article.php';

Upvotes: 4

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