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<?php
declare(strict_types = 1);
namespace Yiisoft\Widget;
/**
* Spaceless widget removes whitespace characters between HTML tags. Whitespaces within HTML tags or in a plain text are
* always left untouched.
*
* Usage example:
* ```php
* <body>
* <?php Spaceless::begin(); ?>
* <div class="nav-bar">
* <!-- tags -->
* </div>
* <div class="content">
* <?php Spaceless::end(); ?>
* </body>
* ```
* This example will generate the following HTML:
* ```html
* <div class="nav-bar"><!-- tags --></div><div class="content"><!-- tags --></div></body>
* This method is not designed for content compression (you should use `gzip` output compression to achieve it). Main
* intention is to strip out extra whitespace characters between HTML tags in order to avoid browser rendering quirks
* in some circumstances (e.g. newlines between inline-block elements).
* Note, never use this method with `pre` or `textarea` tags. It's not that trivial to deal with such tags as it may
* seem at first sight. For this case you should consider using [HTML Tidy Project](http://tidy.sourceforge.net/)
* instead.
* @see http://tidy.sourceforge.net/
*/
class Spaceless extends Widget
{
* Starts capturing an output to be cleaned from whitespace characters between HTML tags.
public function init(): void
parent::init();
ob_start();
ob_implicit_flush(0);
}
* Marks the end of content to be cleaned from whitespace characters between HTML tags.
* Stops capturing an output and returns cleaned result.
* @return string the result of widget execution to be outputted.
public function run(): string
return trim(preg_replace('/>\s+</', '><', ob_get_clean()));
yiisoft /
view
