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escape

escape is used to encode or escape a variable to for example html, url, single quotes, hex, hexentity, javascript and mail. By default its html.

Parameter Position Type Required Possible Values Default Description
1 string No html, htmlall, url, urlpathinfo, quotes, hex, hexentity, javascript, mail html This is the escape format to use.
2 string No ISO-8859-1, UTF-8, and any character set supported by htmlentities() ISO-8859-1 The character set encoding passed to htmlentities() et. al.

Example 5.10. escape


<?php

$smarty->assign('articleTitle',
                "'Stiff Opposition Expected to Casketless Funeral Plan'"
                );
$smarty->assign('EmailAddress','smarty@example.com');

?>

   

These are example escape template lines followed by the output


{$articleTitle}
'Stiff Opposition Expected to Casketless Funeral Plan'

{$articleTitle|escape}
&#039;Stiff Opposition Expected to Casketless Funeral Plan&#039;

{$articleTitle|escape:'html'}    {* escapes  & " ' < > *}
&#039;Stiff Opposition Expected to Casketless Funeral Plan&#039;

{$articleTitle|escape:'htmlall'} {* escapes ALL html entities *}
&#039;Stiff Opposition Expected to Casketless Funeral Plan&#039;

<a href="?title={$articleTitle|escape:'url'}">click here</a>
<a
href="?title=%27Stiff%20Opposition%20Expected%20to%20Casketless%20Funeral%20Plan%27">click here</a>

{$articleTitle|escape:'quotes'}
\'Stiff Opposition Expected to Casketless Funeral Plan\'

<a href="mailto:{$EmailAddress|escape:"hex"}">{$EmailAddress|escape:"hexentity"}</a>
{$EmailAddress|escape:'mail'}    {* this converts to email to text *}
<a href="mailto:%62%6f%..snip..%65%74">&#x62;&#x6f;&#x62..snip..&#x65;&#x74;</a>

{'mail@example.com'|escape:'mail'}
smarty [AT] example [DOT] com

   

Example 5.11. Other examples

PHP functions can be used as modifiers, $security permitting.


{* the "rewind" paramater registers the current location *}
<a href="{$SCRIPT_NAME}?page=foo&rewind={$smarty.server.REQUEST_URI|urlencode}">click here</a>

   

This snippet is useful for emails, but see also {mailto}


{* email address mangled *}
<a href="mailto:{$EmailAddress|escape:'hex'}">{$EmailAddress|escape:'mail'}</a>

   

See also escaping smarty parsing, {mailto} and the obfuscating email addresses page.

Comments
by Matthew Waygood on Feb 13, 2012 at 10:45
As we know multi-line comments start <!-- and end --> So having --> within a comment is a bad thing, as the rest will be displayed. Add the following to modifier.escape.php
        case 'comment':
            // escape double dashes- which denotes the start-tag for the end of the comment
            return strtr($string, array('--'=>'- - '));
To make it easier to understand I used the javascript escape method and replaced '--' with '- - '. The comment will only be visible in the source, so we still need human readable characters, rather than hex/octal codes.

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