Using volist and foreach tags for array loops in ThinkPHP6 templates

ThinkPHP6 provides two template tags, volist and foreach, for looping over arrays in view files.

volist tag

Syntax:

{volist name="" id="" key="" offset="" length=""}
    // loop body
{/volist}

Attributes: name: the variable name of the array passed to the template. id: the variable representing each item in the loop. key: the index, default starts at 1. offset: the starting row number. length: the number of rows to retrieve.

Example PHP code defining an array and assigning it to the view:

<?php
namespace app\controller;
use think\facade\View;
class Test {
    public function index(){
        $arr = [
            ['id'=>1,'name'=>'cmcc'],
            ['id'=>2,'name'=>'cctv'],
            ['id'=>1,'name'=>'cmqq']
        ];
        View::assign('arr', $arr);
        return View::fetch();
    }
}
?>

Template usage:

{volist name="arr" id="vv" key="kk" offset="1" length="1"}
    <div>{$kk} --- {$vv['name']}</div>
{/volist}

The output shows only the second element ("cctv") because the loop starts at offset 1 and retrieves one record.

foreach tag

Syntax:

{foreach $name as $key=>$id}
    // loop body
{/foreach}

Attributes: name: the variable name of the array in the template. id: the variable representing each item. key: the index, default starts at 0.

Example template usage:

{foreach $arr as $k=>$v}
    <div>{$k} --- {$v['name']}</div>
{/foreach}

The result lists all array elements with their indices. The article notes that the foreach tag requires a leading $ for variable names, whereas volist does not.