Articles Application Architecture
Application Architecture
PHP and Classes - Page 5
by: Rod Kreisler
|
July 30, 2000
Let's do the table body now:
<TR>
<?php
$Tbody->TDOut("Kreisler");
$Tbody->TDOut("Rod");
$Tbody->TDOut("Cortlandt");
$Tbody->TDOut("New York");
$Tbody->TDOut("USA");
?>
</TR>
But this is still getting kind of lengthy. Couldn't we save some more
steps? How about trying this:
<?php
function TROut($message) { /*And NO comments about fish, please! ;) */
PRINT "<TR>\n";
$cells=explode("|",$message);
$iterations=count($cells);
$i=0;
while ($i<$iterations) {
list($message,$span)=explode(":",$cells[$i]);
if (strlen($message)<1) $message=" ";
if ($span){
$this->TDOut ($message,$span);
}else{
$this->TDOut ($message);
}
$i++;
}
PRINT "</TR>\n";
}
?>
Wow! That's a little more complicated. Let's break it down:
- Line 3 splits the message on pipes and stores the pieces in the array $cells.
- Line 4 stores the number of items (number of cells) in $iterations.
- Line 6 begins our loop to go through these cell items.
- Line 7 splits the cell data at the colon and stores them into the variables $message and $span.
- Line 8 checks to see if a message was included. If not then it sets message to the default.
- Line 9 checks to see if there was a span listed (i.e. the cell data had a colon with something behind it.
- if so, Line 10 calls TDOut with the message and the number of cells it spans.
- if not, Line 12 calls TDOut with just the message (TDOut will set $colspan to the default 1).
Lastly, we close out the row.
What this means is we can pass a single string to TROut that will
contain all the necessary information to print out the entire row as
long as the string is in the format
celldata[:colspan]|celldata[:colspan]|......celldata[:colspan].
So, instead of all the work we did before, the headers and body of the
table could be called like this:
<TABLE>
<?php
$Theader->TROut("Name:2|Address:3");
$Theader->TROut("First|Last|City|State/Province|Country");
$Tbody->TROut("Rod|Kreisler|Cortlandt|New York|USA");
?>
</TABLE>
Wow. That's a lot easier. But what if the data is in variables? Simply
join the array:
<?php
$message=join($arry,"|");
$Tbody->TROut($message);
?>
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