Location: PHPKode > scripts > Generalized CachedTemplate class > xtemplate_ex5.php
<?php
/*
 * $Id: xtemplate_ex5.php,v 1.3 2000/07/16 19:33:46 jesus Exp $
 */

/* 
	example 5
	demonstrates nullstrings
*/

require "./xtpl.php";
require "./class.XTemplateAdaptor.php";
require "./class.CachedTemplate.php";

$xtpl=new CachedTemplate();
$xtpl->init("ex5.xtpl");

// for benchmarking
$start = $xtpl->utime();

// Check if we can send the cached file
if ($xtpl->valid_cache_file($filename)) {
    echo "<B>FROM CACHE</B>\n<BR>";
    $xtpl->read_from_cache($filename);
    $end = $xtpl->utime();
    $runtime = ($end - $start) * 1000;
    echo "Completed in $runtime miliseconds<BR>\n";
    exit;
}

	$xtpl->assign(INTRO_TEXT,"by default, if some variables weren't assigned a value, they simply disappear from the parsed html:");	
	$xtpl->parse("main.form");

	$xtpl->assign(INTRO_TEXT,"ok, now let's assign a nullstring:");	
	$xtpl->SetNullString("value not specified!");
	$xtpl->parse("main.form");

	$xtpl->assign(INTRO_TEXT,"custom nullstring for a specific variable and default nullstring mixed:");	
	$xtpl->SetNullString("no value..");
	$xtpl->SetNullString("no email specified!",EMAIL);
	$xtpl->parse("main.form");
	
	$xtpl->assign(INTRO_TEXT,"custom nullstring for every variable:) .. you should get it by now. :P");	
	$xtpl->SetNullString("no email specified",EMAIL);
	$xtpl->SetNullString("no name specified",FULLNAME);
	$xtpl->SetNullString("no income?",INCOME);
	$xtpl->parse("main.form");

	$xtpl->parse("main");


// get parsed document
$data = $xtpl->getParsedDoc("main");

// output the page
echo $data;

// for benchmarking
$end = $xtpl->utime();
$runtime = ($end - $start) * 1000;
echo "Completed in $runtime miliseconds<BR>\n";

// we write the file at the end so this
// operation will not be counted in the benchmark
$xtpl->write_to_cache($data);
?>
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