outputing a var using echo from my class...

[dottedquad]

class msgsys {
 var $message;

 function addmsg($msg) {
  $message .= $msg;
  echo $message;
 }
 function showmsg() {
  echo $this->$message;
 }
}

class formchk {
 var $highlight = array();

 function validchk($regval, $fieldval, $msg) {
  if ( !preg_match($regval, $fieldval) ) { msgsys::addmsg($msg); }
 }
}

<?PHP
   if ( $_POST['submit'] == "Add" ) {
    include ('msgsys_cls.php');
    include ('formchk_cls.php');

$srtmsg = new msgsys;
$srtchk = new formchk;

$srtchk->getregex();
   }
  ?>
  <form action = "" method="post">
   <table border="1" width="550px">
    <tr>
	  <td colspan="2">
	   <?php echo 'Echoing out the messege!'; $srtmsg->showmsg(); ?>
	  </td>

The reason why I didn't use $this-> for $message .= $msg; in msgsys class because, in my formchk class i'm calling the addmsg in the msgsys class using ::. This works well, but for some reason $message .= $msg is not keeping the exsisting values while adding a new value.

Another issue i'm running into is, in my page code: <?php echo 'Echoing out the messege!'; $srtmsg->showmsg(); ?> is not out putting the message var.

Could anyone give me a hand with these two issues?

-Thanks

[bpat1434]

Should you be instantiating objects?

 $srtmsg =& new msgsys();
    $srtchk =& new formchk();

~Brett

[dottedquad]

bpat1434 wrote:

Should you be instantiating objects?

 $srtmsg =& new msgsys();
    $srtchk =& new formchk();

~Brett

I'm reading about instantiating objects on http://us2.php.net/classobj but, I'm still confused. Could you explain instantiating?

Also now I'm getting the error: Fatal error: Call to a member function on a non-object in /home2/techonet/public_html/office/addaccount.php on line 16 which is this line: <?php echo 'Echoing out the messege!'; $srtmsg->showmsg(); ?>

[bpat1434]

Okay....

// Puts object into variable
$var = object();

// Puts object reference into variable
$var =& object();

If you're using PHP5, it doesn't matter. PHP 4 has differences.

---

If I were you, I'd read up on object oriented programming. Try this:
frmchk_cls.php

<?php

class message
{

var $highlight  = array();
var $message;

function addmsg($msg)
{
	$message .= $msg;
}

function showmsg()
{
	echo $this->message;
}

function validate($regval, $fieldval, $msg)
{
	if( !preg_match($regval, $fieldval) )
	{
		$this->addmsg($msg);
	}
}

}

?>

otherpage.php

<?php

$obj = new message();
$obj->validate(/*REGEX*/, /*FORM_FIELD*/, /*MESSAGE*/);
$obj->showmsg();

?>

That should work...

~Brett

[dottedquad]

Well, that will work. I used that in my old script and now I've decided to split up the two classes since I will re-use the msgsys code for passing msges around between different pages and what not. I figured to make a class instead of copy and pasting it over and over within different pages. Plus I'm trying to learn oop more and how to access functions from within a class from a class.

[bpat1434]

Okay, try changing:

 function addmsg($msg) {
  $message .= $msg;
  echo $message;
}
function showmsg() {
  echo $this->$message;
} 

to

 function addmsg($msg) {
  $this->message .= $msg;
  echo $this->message;
}
function showmsg() {
  echo $this->message;
} 

And, if you need to clear it, just create a clear function:

function clearmsg()
{
  $this->message = '';
}

~Brett

[dottedquad]

Now thats odd, for some reason when I first changed over to the msgsys class I did it that and it was not saving the values to the message var by doing $this->message .= $msg; nor was it reading the message class by doing echo $this->message; Now it seems to be semi working but I'm not complaining. :p I was reading around and found out that by using a scope: msgsys::addmsg($msg); to access a class function from within another class I don't need to use $this because, I'm not instantiating the class.

There is still one more error I'm running into: Fatal error: Call to a member function on a non-object in /home2/techonet/public_html/office/addaccount.php on line 16, which is this line: <?php echo 'Echoing out the messege!'; $srtmsg->showmsg(); ?> How is there a non-object when I instantiating the msgsys class?

Partial code:

<?PHP
   if ( $_POST['submit'] == "Add" ) {
    include ('msgsys_cls.php');
    include ('formchk_cls.php');

$srtmsg = new msgsys;
$srtchk = new formchk;

$srtchk->getregex();
   }
  ?>
  <form action = "" method="post">
   <table border="1" width="550px">
    <tr>
      <td colspan="2">
       <?php echo 'Echoing out the messege!'; $srtmsg->showmsg(); ?>
      </td>

[bpat1434]

change both of the lines (16 & 17) to be:

$srtmsg = new msgsys();
$srtchk = new formchk();

That should work for creating a new object.

~Brett

[dottedquad]

Thanks for all of you help so far. I'm still getting that error though: Fatal error: Call to a member function on a non-object in /home2/techonet/public_html/office/addaccount.php on line 16 You can visit http://www.techglo.net/office/addaccount.php and view the error also. Line 16 is for <?php echo 'Echoing out the messege!'; $srtmsg->showmsg(); ?>. what I don't get is if $srtchk->getregex(); ran alright then both $srtmsg = new msgsys(); $srtchk = new formchk(); should have instantiating correctly. Or am I wrong and the script didn't run it just checked the script before running it?