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smarty "if" statements with custom functions

 
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omarswan
Smarty Rookie


Joined: 17 May 2003
Posts: 5
PostPosted: Sat May 17, 2003 1:43 am    Post subject: smarty "if" statements with custom functions Reply with quote
Hi guys,
I put together a simple smarty function to check if a local
file exist. the code is below:

Code:

<?php
/*
 * Smarty plugin
 * -------------------------------------------------------------
 * File:     function.file_exists.php
 * Type:     function
 * Name:     file_exists
 * Purpose:  checks if a file exist
 * -------------------------------------------------------------
 */
function smarty_function_file_exists($params, &$smarty)
{

    extract($params);

    if (empty($file)) {
        $smarty->trigger_error("assign: missing 'file' parameter");
        return;
    }

    return file_exists($file);
}
?>


now...

Is there a way to include this in the a smarty template file (template.tpl).

Here the idea!

Quote:

{assign var="file" value="test.tpl"}

{if !file_exists($file) }
File Not Found!
{/if}



is there a way to get this done within a smarty template file?
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boots
Administrator


Joined: 16 Apr 2003
Posts: 5611
Location: Toronto, Canada
PostPosted: Sat May 17, 2003 10:41 pm    Post subject: Reply with quote
If you rewrite this as a Smarty modifier, then you can have your template code look like this:

Code:
{if $file|file_exists}
    File Exists
{/if}
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