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function: smarty_function_ssprintf()

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myhan
Smarty n00b

Joined: 26 Sep 2003
Posts: 3

Posted: Mon Mar 22, 2004 9:22 am Post subject: function: smarty_function_ssprintf()

Code:

<?php
/*
* Smarty plugin
* -------------------------------------------------------------
* Type: function
* Name: ssprintf
* Version: 0.1
* Date: 2004-3-22
* Author: srni <nsr_xh@yahoo.com.cn>
* Purpose: Returns a string produced according to the formatting string format.
* Params:
* needed string format The format string is composed of zero or more directives:
* ordinary characters (excluding %) that are copied directly to the result,
* and conversion specifications, each of which results in fetching its own parameter.
* needed mixed $var[$n] args for sprintf.
*
* Usage: {ssprintf format=$string var1=$var1 [var2=$var2 [...]]} - creates an unordered list
* Install: Drop into the plugin directory
* -------------------------------------------------------------
* NOTE:
* The order of params is very importent for sprintf()
* so please use this function carefully :)
* -------------------------------------------------------------
* CHANGES:
*
* -------------------------------------------------------------
*/
function smarty_function_ssprintf($params, &$smarty)
{
if (!is_array($params)) {
$smarty->trigger_error("ssprintf: wrong paramter");
return;
}

reset($params);

if (!isset($params['format'])) {
$smarty->trigger_error("ssprintf: missing 'format' parameter");
return;
}

if($params['format'] == '') {
return;
}

$format = $params['format'];
unset($params['format']);

$args = array();
foreach ($params as $key=>$val) {
if (is_array($val)) {
foreach ($val as $k=>$v) {
array_push($args, $val);
}
continue;
}
if (preg_match("!var[\d+]!", $key)) {
array_push($args, $val);
continue;
}
}

$s = "\$content = sprintf(\$format";
foreach($args as $k=>$val) {
$s .= ", \$args[$k]";
}
$s = $s . ");";

eval($s);

if ($content === false) {
$smarty->trigger_error("ssprintf: params not match");
return;
}

return $content;
}
?>

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