creating a url with variables

Question

i have a login page where a user enters his email and password. this is then passed to another pages (success) where they will have different options.

What i need to do is to get the email address from the prevoius page (login) which I can do but then i want to add it to a url like the one below.

the first part works ok (membersgoods.php?email= but I can't get the email address I just get the text $email.

$email = $_POST['email']
echo '<a href="membersgoods.php?email=$email">    Click here to see your purchased goods</a>';

Can anyone help?

This reeks of possibly bad architecture. If the user is logged in, why do you need their E-Mail address in the URL? Is having the E-Mail in the URL enough to access the user's private data? That would be a huge security hole. — Pekka
– Pekka, Commented Feb 4, 2013 at 14:03
thank you Pekka - you are right, I need to look into Sessions id's instead. — user2039822
– user2039822, Commented Feb 4, 2013 at 14:42

Praveen Kumar Purushothaman · Accepted Answer · 2013-02-04 14:03:25Z

1

It works only with double quotes:

echo "<a href=\"membersgoods.php?email=$email\">Click here to see your purchased goods</a>";

Explanation

If the string is enclosed in double-quotes ("), PHP will interpret more escape sequences for special characters:

\n  linefeed (LF or 0x0A (10) in ASCII)
\r  carriage return (CR or 0x0D (13) in ASCII)
\t  horizontal tab (HT or 0x09 (9) in ASCII)
\v  vertical tab (VT or 0x0B (11) in ASCII) (since PHP 5.2.5)
\e  escape (ESC or 0x1B (27) in ASCII) (since PHP 5.4.0)
\f  form feed (FF or 0x0C (12) in ASCII) (since PHP 5.2.5)
\\  backslash
\$  dollar sign
\"  double-quote

The most important feature of double-quoted strings is the fact that variable names will be expanded.
When a string is specified in double quotes or with heredoc, variables are parsed within it.

answered Feb 4, 2013 at 14:03

Praveen Kumar Purushothaman

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Comments

Bojan Kogoj · Accepted Answer · 2013-02-04 14:03:52Z

1

you cannot use a variable in ', but you can use it in "

echo "<a href=\"membersgoods.php?email=$email\">    Click here to see your purchased goods</a>";

or

echo '<a href="membersgoods.php?email='.$email.'">    Click here to see your purchased goods</a>';

answered Feb 4, 2013 at 14:03

Bojan Kogoj

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1 Comment

user2039822 Over a year ago

Thank you Bojan, this has worked for me but looking at Pekka point, I think I need to do more with the sessions.

Musk · Accepted Answer · 2013-02-04 14:05:05Z

0

You putted your string in single quotes..

echo '<a href="membersgoods.php?email='.$email.'"> Click here to see your purchased goods</a>';

answered Feb 4, 2013 at 14:05

Musk

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Comments

seph · Accepted Answer · 2013-02-04 14:05:42Z

0

Try something like this:

<?php
   $query_string = 'mail=' . $_POST['email'];
   echo '<a href="mySite.php?' . htmlentities($query_string) . '">click</a>';
?>

Hope this helps.

\seems like im late to the party :)

answered Feb 4, 2013 at 14:05

seph

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Comments

Christian Ziemer · Accepted Answer · 2013-02-04 14:20:28Z

0

I think you merge the both methods of a form: get and post.

If you use 'get' all attributes will be written in the URL and you can access per $_GET (or $_REQUEST).

If you use 'post' nothing else then the action will be written in the url and you could access the attributes by $_POST (or $_REQUEST).

With <form action="index.php" method="post">...</form> it will work fine.

answered Feb 4, 2013 at 14:20

Christian Ziemer

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Comments

Community · Accepted Answer · 2017-05-23 11:48:50Z

0

You have single quotes around the string preventing expansion of variables.

Try

echo '<a href="membersgoods.php?email='. $email .'">    Click here to see your purchased goods</a>' ;

Further reading : stackoverflow.com Question 14688343

edited May 23, 2017 at 11:48

CommunityBot

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answered Feb 4, 2013 at 14:31

X Tian

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