wiki/content/20201112130435-iterate_method.md

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---
date: 20201112
id: f5983e81-f975-4913-b6c5-5211493841b7
title: iterate() method
---
# Syntax
``` php
$iterable = function () {
yield 1;
yield 2;
// ...
};
```
``` php
use Symfony\Component\Console\Helper\ProgressBar;
$progressBar = new ProgressBar($output);
foreach ($progressBar->iterate($iterable) as $value) {
// ... do some work
}
```
## Non countable variable
``` php
foreach ($progressBar->iterate($iterable, 100) as $value) {
// ... do some work
}
```