CODEWITHSUNDEEP
phpif-statementfile-get-contents
Robin
Robin

Reputation: 45

PHP file_get_contents and if returns false

I have a variable that comes from the "file_get_contents()" function. Using this variable with an if function always gives false.

$content = file_get_contents($url);
echo $content; // Echos 1
if ($content == "1") {
    // It doesn't matter if I use 1, '1' or "1"
    echo "True";
}
else {
    echo "False"; // Always echos this one.
}

Upvotes: 2

Views: 2044

Answers (2)

Marco
Marco

Reputation: 7277

Your comparison fails because $content isn't what you think it is.

Most likely there are <html> tags or whitespace characters (like \n).

Make a hexdump of your content to see exactly what you are getting back from file_get_contents.

Hex dump function implemented in PHP.

Example:

$content = file_get_contents($url);

hex_dump($content);

Once you know what's inside $content you can filter it accordingly (strip_tags and trim were mentioned in the comments.)

Upvotes: 1

Laky
Laky

Reputation: 171

I think it could be better catch false in case failure (http://php.net/manual/en/function.file-get-contents.php)

$content = file_get_contents($url);
if ($content === false) {
    echo "False"; // or throw exception
}

echo "True";

Upvotes: 1

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