for looping PHP syntax to Smarty Syntax

I have a PPH syntax from prestashop file:

<select name="deadline" id="deadline" onclick="dead_line_all()">    
<option value="235959" selected="selected">'.$this->l('NONE').'</option>';  
for($hours=0; $hours<24; $hours++)      
for($mins=0; $mins<60; $mins+=30)   
$this->_html .= '
<option value="'.str_pad($hours,2,'0',STR_PAD_LEFT).''.str_pad($mins,2,'0',STR_PAD_LEFT).'00">               '.str_pad($hours,2,'0',STR_PAD_LEFT).':'.str_pad($mins,2,'0',STR_PAD_LEFT).' 
</option>'; 
$this->_html .= ' </select>

How to change it into smarty syntax in the smarty template (xxx.tpl)?

Their are two ways to do this. First simple assign this select html to smarty variable in php file and print in xxx.tpl php file

<?php
$html .= '<select name="deadline" id="deadline" 
      onclick="dead_line_all()">';'
      $html .= '<option value="235959" selected="selected">--Select--</option>';
     for($hours=0; $hours<24; $hours++){
        for($mins=0; $mins<60; $mins+=30){
       $html .= '<option value="'.str_pad($hours,2,'0',STR_PAD_LEFT).''.str_pad($mins,2,'0',STR_PAD_LEFT).'00">'.str_pad($hours,2,'0',STR_PAD_LEFT).':'.str_pad($mins,2,'0',STR_PAD_LEFT).'</option>';
        }
     }
$html .= '</select>';

$smarty->assign('select',$html);
?>

xxx.tpl template file

 


    {$select}

this will print select html in template file.

2.Second option in code within template xxx.tpl file

<select name="deadline" id="deadline" onclick="dead_line_all()">
   <option value="235959" selected="selected">Select</option>
  {for $hour=0 to 24}
   <option value="{$hour|str_pad:2:0:STR_PAD_LEFT}:30">{$hour|str_pad:2:0:STR_PAD_LEFT}:30</option>
   <option value="{$hour|str_pad:2:0:STR_PAD_LEFT}:60">{$hour|str_pad:2:0:STR_PAD_LEFT}:60</option>
  {/for}
 </select>

also you need to create new smarty modifier plugin for str_pad function.

<?php

function smarty_modifier_str_pad($string,$length,$pad_string,$pad_type) {
    return str_pad($string,$length,$pad_string,$pad_type);
}

$smarty->registerPlugin(Smarty\Smarty::PLUGIN_MODIFIER, 'str_pad', 'smarty_modifier_str_pad');

?>

for more info on adding modifiers https://smarty-php.github.io/smarty/stable/api/extending/modifiers/

second example is for latest smarty library