Smarty substr & strpos from last occurrence

Question

{assign var="bar_at" value=$product.supplier_reference|strpos:"="}

The $product.supplier_reference looks like https://www.example.com/search?w=1366&h=610&q=the_actual_reference

I need to get what comes after the last '='(the actual reference)

How to get strpos after the last occurrence?

Answer 1

First of all the right function to go with is : strrpos

you have various ways to accomplish this:

1- the pure smarty way:

{assign var="str" value="https://www.example.com/search?w=1366&h=610&q=the_actual_reference"}
{assign var="offset" value=$str|strrpos:"="}
{assign var="reference" value=$str|substr:($offset+1)}
{$reference}

---

2- create new plugin in the plugins directory , which lays under the following path : vendor/smarty/smarty/libs/plugins/ , add new file with your new plugin name, lets say function.getReference.php

create a new function smarty_function_getReference

and write your pure PHP function, then use this from your smarty template directly like following :

function  smarty_function_money ($paramters) {
    $url = $paramters['url'];
    // here is our function body
}

within your smarty template:

{getReference url="https://www.example.com/search?w=1366&h=610&q=the_actual_reference"}

---

3- add new modifier:

where-ever you are defining your smarty view logic register the new modifier :

$callback = function ($string) {
    // perform your logic within this callback
};

$this->registerPlugin('modifier', 'getRefernce', $callback);

then call this modifier directly from your smarty template like following :

{"https://www.example.com/search?w=1366&h=610&q=the_actual_reference"|getRefernce}