Double quotes in fwrite

NirTivAal · 12-02-2003, 05:59 AM

Is there any way that I can get frwite to write double quotes (") without screwing up?

Whenever it encounters a double quote as part of a string it just stops writing (like you'd expect it to), but I can't figure out a way to get it to write a double quote properly. I've tried addslashes, but it had no effect.

sde · 12-02-2003, 06:16 AM

you need to escape special characters by putting a \ before them.

for example:

PHP Code:


			
<?

print("this is how you would print a string with \"double quotes\".";

?>

the same should apply for fwrite.

hope this helps!

NirTivAal · 12-02-2003, 06:24 AM

Isn't that what the addslashes function should be doing?

sde · 12-02-2003, 07:52 AM

depends how you're using it.

try my suggestion, let me know if it works.

then try posting your code with addslashes. maybe we can help you troubleshoot that function and the way you're using it.

NirTivAal · 12-02-2003, 09:43 AM

dfsg dfgdf g dfsg \"sfdg sfdg adff da\" avfdscewsc a.

Becomes:

dfsg dfgdf g dfsg \\

Here's essentially what I'm trying to do:
User has a <textarea> field to enter text into. This text is written to a file (with fopen, fwrite).
But you can see what happens with double quotes above (addslashes wasn't used at this time)

joe_bruin · 12-02-2003, 09:52 AM

hrm, works for me.

Code:

[joe@portia test]$ php -q
<?
$f = fopen("blah.txt", "w");
$s = "this is a \"quoted\" string\n";
fwrite($f, $s);
fclose($f);
?>
[joe@portia test]$ 
[joe@portia test]$ cat blah.txt 
this is a "quoted" string
[joe@portia test]$

can you provide a real code example that doesn't work?

NirTivAal · 12-03-2003, 06:37 AM

OK, here's essentially what I'm doing. There's other stuf that goes on that's unrelated to writing the file

PHP Code:


			
$article = addslashes($article)

$full_article = "<h2>$title</h2>\nBy: <a href=\"mailto:$email\">$name</a><br />\n$date<br /><br />\n$article\n<br /><br /><span class=\"final\"><b>Final grade: $rating</b></span>";

$file = fopen("$dir/$articlenum.php", "w");

fwrite($file, $full_article);

fclose($file);

The variables $title, $article, and $rating, are all submitted by the user.
Because these people won't know any HTML or PHP, I can't rely on them to escape characters themselves (not that it works that way anyways)
The fwrite command works perfectly fine as long as you don't use the double quotes. Using addslashes doesn't seem to be making a difference.

joe_bruin · 12-03-2003, 10:05 AM

1) why are you using addslashes()? that is only for escaping special characters for sql.

2) try writing this string: "quote \" test"
does it work? if so, your problem is not fwrite. i'm guessing you have some sort of automatic quote escaping running on submitted user data (magic_quote_runtime or similar) that's screwing up your strings. print out your string, so you can see what you're really trying to fwrite.

NirTivAal · 12-08-2003, 08:13 AM

The problem was with the variables, not fwrite. I fixed it, but damned if I know how.

Thanks for your help, guys.