Description:
------------
File #1:
################################################################################
#	HTML Library
################################################################################
#	Begin Table
################################################################################
function tb( $alignA, $bgPicA, $bgColorA, $borderA, $borderColorA,
	$cellPaddingA, $cellSpacingA, $columnsA, $heightA, $widthA )
{
	$theReply = "<table ";

	if( isset($alignA) )$theReply .= "align='$alignA' ";
	if( isset($bgPicA) )$theReply .= "background='$bgPicA' ";
	if( isset($bgColorA) )$theReply .= "bgcolor='$bgColorA' ";
	if( isset($borderA) )$theReply .= "border='$borderA' ";
	if( isset($borderColorA) )$theReply .= "bordercolor='$borderColorA' ";
	if( isset($cellPaddingA) )$theReply .= "cellpadding='$cellPaddingA' ";
	if( isset($cellSpacingA) )$theReply .= "cellspacing='$cellSpacingA' ";
	if( isset($columnsA) )$theReply .= "columns='$columnsA' ";
	if( isset($heightA) )$theReply .= "height='$heightA' ";
	if( isset($widthA) )$theReply .= "width='$widthA' ";

	$theReply .= ">";
	return $theReply;
}

File #2: (test program)
<?php
	include	"html.php";
	$theLine = "";
	$theLine .= tb( null,null,"#FFFFFF");
	echo "$theLine\n";
?>

Running the above generates:

C:\apache\lib>php test.php
Content-type: text/html
X-Powered-By: PHP/4.3.1

PHP Warning:  Missing argument 4 for tb() in c:\apache\lib\html.php on line 7
PHP Warning:  Missing argument 5 for tb() in c:\apache\lib\html.php on line 7
PHP Warning:  Missing argument 6 for tb() in c:\apache\lib\html.php on line 8
PHP Warning:  Missing argument 7 for tb() in c:\apache\lib\html.php on line 8
PHP Warning:  Missing argument 8 for tb() in c:\apache\lib\html.php on line 8
PHP Warning:  Missing argument 9 for tb() in c:\apache\lib\html.php on line 8
PHP Warning:  Missing argument 10 for tb() in c:\apache\lib\html.php on line 8
<table bgcolor='#FFFFFF' ><tr ><td ></td></tr></table>



Expected result:
----------------
1. If not having to pass arguments to a function (variable call arguments) is normal, then why does PHP generate a warning about missing arguments?

2. If variable call arguments are possible - why can you not call the function in this manner:

      $theLine .= tb(,,"#ffffff");

???????  PHP should treat the empty ",," as two nulls.  Instead, an error is generated by PHP and PHP dies.