On 12-12-31 03:37 PM, Nelson Green wrote:
On Mon, 31 Dec 2012 14:47:20 Stephen D wrote:
Yes!
Easy standard stuff.
$title = 'Mr.";
$user_name = 'John Doe';
$message = "Hello $title $user_name ...."
Just define the value for the variables before defining the value for
the message.
Note that $message has to use double quotes for the expansion. Also
consider using HEREDOC instead of the double quotes.
You may want to put your message in a text file and using the include
function.
Hi Stephen,
My message is in a text file, but I'm using fopen and fread in a self-defined
function, so message is actually defined as (GREETER_FILE is a defined
constant):
function print_greeting($user_name)
{
$handle = fopen(GREETER_FILE, "r");
$message = fread($file_handle, filesize(GREETER_FILE));
$msg_text = str_replace("USER", $user_name, $message);
print($msg_txt);
}
And my text file is simply:
$cat greet.txt
Hello USER. How are you today?
If I change USER to $user_name in the text file and change the print function
parameter to $message, $user_name gets printed verbatim. In other words
the greeting on my page becomes:
Hello $user_name. How are you today?
I want to pass the name Nelson to the function, and have it output:
Hello Nelson. How are you today?
after the function reads in text file input that contains a variable placeholder
for the user name. I actually had a HEREDOC in the function, and that worked.
But by reading a file instead, I can make things more flexible. I'd rather be
changing a text file instead of a code file.
The reason you get $user_name printed is because of the way you are
populating the variable $message. You need to have $user_name embedded
in double quotes or a HEREDOC when PHP parses $messsage. And $user_name
has to have already been defined.
Here is a sample from one of my sites. It is a simple one for the
contact page.
=====contact.php====
<?php
$thispage = "Contact";
$contenttop = "<p>$thispage</p>";
$contentbody = <<<HEREDOC
<p>stephen@xxxxxxxxx</p>
HEREDOC;
require_once "include.php";
require_once "utilities.php";
echo $header . $markup;
=================
The common stuff for every page is defined in the file "include.php". I
define the variable $markup in that file.
Here is the definition for $markup
$markup=<<<HEREDOC
<body>
<div id="all">
<div id="top">
<img src=$titlepng alt=$title />
</div>
<div id="main">
<div id="mainrow">
<div id="left">
$leftimage
<div id="mainnav">
<ul>
$menu
</ul>
</div>
</div>
<div id="content">
<div id="content-top">
$contenttop
</div>
<div id="content-body">
$contentbody
</div>
<div id="content-bottom">
</div>
</div>
</div>
</div>
<div id="footer">
$copyright
</div>
</div>
</body>
</html>
HEREDOC;
There is lots more code, but this is the important stuff.
By using require_once instead of fopen and fread, I have simpler code
and PHP evaluates the embedded variables in $markup without any need to
use string functions.
In your case, I would make the file greeter.php
=====greeter.php===
$message = "Hello $user_name. How are you today?"
===============
You replace the fopen and fread stuff with a require_once function and
$message gets included and the user name resolved all in one line of code.
Hope this helps
--
Stephen
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