note 95987 deleted from function.substr by peehaa
| From: | peehaa@php.net | Date: | Mon, 28 Nov 2016 19:44:40 +0000 |
| Subject: | note 95987 deleted from function.substr by peehaa | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-207714@lists.php.net to get a copy of this message | ||
Note Submitter: Jarrod Nettles (jarrod at squarecrow dot com)
----
I've seen numerous requests over the years from people trying to put together templating
systems using XML parsers or regular expressions - you can create a simple template system with the
following class. It could easily be expanded to take advantage of parameters, conditionals, etc.
<?php
class Template
{
const OPEN_BRACKET = "{";
const CLOSE_BRACKET = "}";
public static function inject(array $source, $template)
{
$ob_size = strlen(self::OPEN_BRACKET);
$cb_size = strlen(self::CLOSE_BRACKET);
$pos = 0;
$end = strlen($template);
while($pos <= $end)
{
if($pos_1 = strpos($template, self::OPEN_BRACKET, $pos))
{
if($pos_1)
{
$pos_2 = strpos($template, self::CLOSE_BRACKET, $pos_1);
if($pos_2)
{
$return_length = ($pos_2-$cb_size) - $pos_1;
$var = substr($template, $pos_1+$ob_size, $return_length);
$template = str_replace(self::OPEN_BRACKET.$var.self::CLOSE_BRACKET, $source[$var],
$template);
$pos = $pos_2 + $cb_size;
}
else
{
throw new exception("Incorrectly formed template - missing closing bracket. Please check
your syntax.");
break;
}
}
}
else
{
//exit the loop
break;
}
}
return $template;
}
}
//array of values to inject into the template
$array = array("NAME" => "John Doe",
"DOB" => "12/21/1986",
"ACL" => "Super Administrator");
//template using '{' and '}' to signify variables
$template = "This is your template, {NAME}. You were born on {DOB} and you are a {ACL} on this
system.";
echo Template::inject($array, $template);
?>