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<?php |
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/** |
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* @author Marwan Al-Soltany <[email protected]> |
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* @copyright Marwan Al-Soltany 2021 |
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* For the full copyright and license information, please view |
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* the LICENSE file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace MAKS\Velox\Frontend; |
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use MAKS\Velox\Helper\Misc; |
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/** |
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* A class that serves as a fluent interface to write HTML in PHP. It helps with creating HTML elements on the fly. |
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* |
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* Example: |
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* ``` |
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* // return an HTML element by using some tag name as a static method |
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* // div can be replaced by any other html element name |
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* $html = HTML::div('This is a div!', ['class' => 'container']); |
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* |
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* // structuring deeply nested elements using wrapping methods |
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* // ->condition() to make the next action conditional |
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* // ->execute() to execute some logic (loops, complex if-statements) |
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* // ->open() and ->close() for containing elements |
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* // ->{$tagName}() or ->element() for elements, ->entity() for entities, ->comment() for comments |
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* // ->echo() or ->return() for retrieving the final result |
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* (new HTML()) |
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* ->element('h1', 'HTML Forms', ['class' => 'title']) |
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* ->open('form', ['method' => 'POST']) |
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* ->h2('Example', ['class' => 'subtitle']) |
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* ->p('This is an example form.') |
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* ->br(null) |
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* ->condition($someVar === true)->div('The var was true') |
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* ->open('fieldset') |
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* ->legend('Form 1', ['style' => 'color: #555;']) |
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* ->label('Message: ', ['class' => 'text']) |
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* ->input(null, ['type' => 'text', 'required']) |
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* ->entity('nbsp', 2) |
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* ->input(null, ['type' => 'submit', 'value' => 'Submit']) |
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* ->close() |
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* ->condition(count($errors)) |
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* ->open('ul', ['class' => 'errors']) |
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* ->execute(function () use ($errors) { |
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* foreach ($errors as $error) { |
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* $this->li($error); |
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* } |
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* }) |
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* ->close() |
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* ->close() |
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* ->echo(); |
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* ``` |
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* |
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* @method HTML a(?string $content = '', array $attributes = []) |
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* @method static string a(?string $content = '', array $attributes = []) |
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* @method HTML abbr(?string $content = '', array $attributes = []) |
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* @method static string abbr(?string $content = '', array $attributes = []) |
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* @method HTML address(?string $content = '', array $attributes = []) |
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* @method static string address(?string $content = '', array $attributes = []) |
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* @method HTML area(?string $content = '', array $attributes = []) |
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* @method static string area(?string $content = '', array $attributes = []) |
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* @method HTML article(?string $content = '', array $attributes = []) |
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* @method static string article(?string $content = '', array $attributes = []) |
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* @method HTML aside(?string $content = '', array $attributes = []) |
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* @method static string aside(?string $content = '', array $attributes = []) |
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* @method HTML audio(?string $content = '', array $attributes = []) |
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* @method static string audio(?string $content = '', array $attributes = []) |
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* @method HTML b(?string $content = '', array $attributes = []) |
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* @method static string b(?string $content = '', array $attributes = []) |
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* @method HTML base(?string $content = '', array $attributes = []) |
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* @method static string base(?string $content = '', array $attributes = []) |
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* @method HTML bdi(?string $content = '', array $attributes = []) |
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* @method static string bdi(?string $content = '', array $attributes = []) |
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* @method HTML bdo(?string $content = '', array $attributes = []) |
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* @method static string bdo(?string $content = '', array $attributes = []) |
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* @method HTML blockquote(?string $content = '', array $attributes = []) |
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* @method static string blockquote(?string $content = '', array $attributes = []) |
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* @method HTML body(?string $content = '', array $attributes = []) |
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* @method static string body(?string $content = '', array $attributes = []) |
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* @method HTML br(?string $content = '', array $attributes = []) |
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* @method static string br(?string $content = '', array $attributes = []) |
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* @method HTML button(?string $content = '', array $attributes = []) |
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* @method static string button(?string $content = '', array $attributes = []) |
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* @method HTML canvas(?string $content = '', array $attributes = []) |
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* @method static string canvas(?string $content = '', array $attributes = []) |
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* @method HTML caption(?string $content = '', array $attributes = []) |
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* @method static string caption(?string $content = '', array $attributes = []) |
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* @method HTML cite(?string $content = '', array $attributes = []) |
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* @method static string cite(?string $content = '', array $attributes = []) |
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* @method HTML code(?string $content = '', array $attributes = []) |
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* @method static string code(?string $content = '', array $attributes = []) |
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* @method HTML col(?string $content = '', array $attributes = []) |
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* @method static string col(?string $content = '', array $attributes = []) |
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* @method HTML colgroup(?string $content = '', array $attributes = []) |
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* @method static string colgroup(?string $content = '', array $attributes = []) |
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* @method HTML data(?string $content = '', array $attributes = []) |
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* @method static string data(?string $content = '', array $attributes = []) |
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* @method HTML datalist(?string $content = '', array $attributes = []) |
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* @method static string datalist(?string $content = '', array $attributes = []) |
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* @method HTML dd(?string $content = '', array $attributes = []) |
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* @method static string dd(?string $content = '', array $attributes = []) |
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* @method HTML del(?string $content = '', array $attributes = []) |
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* @method static string del(?string $content = '', array $attributes = []) |
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* @method HTML details(?string $content = '', array $attributes = []) |
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* @method static string details(?string $content = '', array $attributes = []) |
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* @method HTML dfn(?string $content = '', array $attributes = []) |
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* @method static string dfn(?string $content = '', array $attributes = []) |
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* @method HTML dialog(?string $content = '', array $attributes = []) |
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* @method static string dialog(?string $content = '', array $attributes = []) |
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* @method HTML div(?string $content = '', array $attributes = []) |
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* @method static string div(?string $content = '', array $attributes = []) |
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* @method HTML dl(?string $content = '', array $attributes = []) |
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* @method static string dl(?string $content = '', array $attributes = []) |
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* @method HTML dt(?string $content = '', array $attributes = []) |
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* @method static string dt(?string $content = '', array $attributes = []) |
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* @method HTML em(?string $content = '', array $attributes = []) |
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* @method static string em(?string $content = '', array $attributes = []) |
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* @method HTML embed(?string $content = '', array $attributes = []) |
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* @method static string embed(?string $content = '', array $attributes = []) |
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* @method HTML fieldset(?string $content = '', array $attributes = []) |
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* @method static string fieldset(?string $content = '', array $attributes = []) |
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* @method HTML figcaption(?string $content = '', array $attributes = []) |
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* @method static string figcaption(?string $content = '', array $attributes = []) |
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* @method HTML figure(?string $content = '', array $attributes = []) |
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* @method static string figure(?string $content = '', array $attributes = []) |
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* @method HTML footer(?string $content = '', array $attributes = []) |
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* @method static string footer(?string $content = '', array $attributes = []) |
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* @method HTML form(?string $content = '', array $attributes = []) |
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* @method static string form(?string $content = '', array $attributes = []) |
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* @method HTML h1(?string $content = '', array $attributes = []) |
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* @method static string h1(?string $content = '', array $attributes = []) |
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* @method HTML h2(?string $content = '', array $attributes = []) |
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* @method static string h2(?string $content = '', array $attributes = []) |
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* @method HTML h3(?string $content = '', array $attributes = []) |
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* @method static string h3(?string $content = '', array $attributes = []) |
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* @method HTML h4(?string $content = '', array $attributes = []) |
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* @method static string h4(?string $content = '', array $attributes = []) |
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* @method HTML h5(?string $content = '', array $attributes = []) |
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* @method static string h5(?string $content = '', array $attributes = []) |
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* @method HTML h6(?string $content = '', array $attributes = []) |
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* @method static string h6(?string $content = '', array $attributes = []) |
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* @method HTML head(?string $content = '', array $attributes = []) |
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* @method static string head(?string $content = '', array $attributes = []) |
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* @method HTML header(?string $content = '', array $attributes = []) |
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* @method static string header(?string $content = '', array $attributes = []) |
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* @method HTML hr(?string $content = '', array $attributes = []) |
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* @method static string hr(?string $content = '', array $attributes = []) |
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* @method HTML html(?string $content = '', array $attributes = []) |
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* @method static string html(?string $content = '', array $attributes = []) |
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* @method HTML i(?string $content = '', array $attributes = []) |
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* @method static string i(?string $content = '', array $attributes = []) |
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* @method HTML iframe(?string $content = '', array $attributes = []) |
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* @method static string iframe(?string $content = '', array $attributes = []) |
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* @method HTML img(?string $content = '', array $attributes = []) |
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* @method static string img(?string $content = '', array $attributes = []) |
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* @method HTML input(?string $content = '', array $attributes = []) |
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* @method static string input(?string $content = '', array $attributes = []) |
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* @method HTML ins(?string $content = '', array $attributes = []) |
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* @method static string ins(?string $content = '', array $attributes = []) |
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* @method HTML kbd(?string $content = '', array $attributes = []) |
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* @method static string kbd(?string $content = '', array $attributes = []) |
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* @method HTML label(?string $content = '', array $attributes = []) |
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* @method static string label(?string $content = '', array $attributes = []) |
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* @method HTML legend(?string $content = '', array $attributes = []) |
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* @method static string legend(?string $content = '', array $attributes = []) |
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* @method HTML li(?string $content = '', array $attributes = []) |
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* @method static string li(?string $content = '', array $attributes = []) |
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* @method HTML link(?string $content = '', array $attributes = []) |
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* @method static string link(?string $content = '', array $attributes = []) |
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* @method HTML main(?string $content = '', array $attributes = []) |
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* @method static string main(?string $content = '', array $attributes = []) |
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* @method HTML map(?string $content = '', array $attributes = []) |
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* @method static string map(?string $content = '', array $attributes = []) |
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* @method HTML mark(?string $content = '', array $attributes = []) |
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* @method static string mark(?string $content = '', array $attributes = []) |
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* @method HTML meta(?string $content = '', array $attributes = []) |
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* @method static string meta(?string $content = '', array $attributes = []) |
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* @method HTML meter(?string $content = '', array $attributes = []) |
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* @method static string meter(?string $content = '', array $attributes = []) |
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* @method HTML nav(?string $content = '', array $attributes = []) |
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* @method static string nav(?string $content = '', array $attributes = []) |
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* @method HTML noscript(?string $content = '', array $attributes = []) |
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* @method static string noscript(?string $content = '', array $attributes = []) |
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* @method HTML object(?string $content = '', array $attributes = []) |
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* @method static string object(?string $content = '', array $attributes = []) |
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* @method HTML ol(?string $content = '', array $attributes = []) |
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* @method static string ol(?string $content = '', array $attributes = []) |
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* @method HTML optgroup(?string $content = '', array $attributes = []) |
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* @method static string optgroup(?string $content = '', array $attributes = []) |
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* @method HTML option(?string $content = '', array $attributes = []) |
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* @method static string option(?string $content = '', array $attributes = []) |
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* @method HTML output(?string $content = '', array $attributes = []) |
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* @method static string output(?string $content = '', array $attributes = []) |
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* @method HTML p(?string $content = '', array $attributes = []) |
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* @method static string p(?string $content = '', array $attributes = []) |
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* @method HTML param(?string $content = '', array $attributes = []) |
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* @method static string param(?string $content = '', array $attributes = []) |
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* @method HTML picture(?string $content = '', array $attributes = []) |
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* @method static string picture(?string $content = '', array $attributes = []) |
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* @method HTML pre(?string $content = '', array $attributes = []) |
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* @method static string pre(?string $content = '', array $attributes = []) |
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* @method HTML progress(?string $content = '', array $attributes = []) |
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* @method static string progress(?string $content = '', array $attributes = []) |
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* @method HTML q(?string $content = '', array $attributes = []) |
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* @method static string q(?string $content = '', array $attributes = []) |
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* @method HTML rp(?string $content = '', array $attributes = []) |
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* @method static string rp(?string $content = '', array $attributes = []) |
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* @method HTML rt(?string $content = '', array $attributes = []) |
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* @method static string rt(?string $content = '', array $attributes = []) |
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* @method HTML ruby(?string $content = '', array $attributes = []) |
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* @method static string ruby(?string $content = '', array $attributes = []) |
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* @method HTML s(?string $content = '', array $attributes = []) |
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* @method static string s(?string $content = '', array $attributes = []) |
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* @method HTML samp(?string $content = '', array $attributes = []) |
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* @method static string samp(?string $content = '', array $attributes = []) |
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* @method HTML script(?string $content = '', array $attributes = []) |
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* @method static string script(?string $content = '', array $attributes = []) |
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* @method HTML section(?string $content = '', array $attributes = []) |
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* @method static string section(?string $content = '', array $attributes = []) |
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* @method HTML select(?string $content = '', array $attributes = []) |
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* @method static string select(?string $content = '', array $attributes = []) |
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* @method HTML small(?string $content = '', array $attributes = []) |
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* @method static string small(?string $content = '', array $attributes = []) |
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* @method HTML source(?string $content = '', array $attributes = []) |
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* @method static string source(?string $content = '', array $attributes = []) |
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* @method HTML span(?string $content = '', array $attributes = []) |
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* @method static string span(?string $content = '', array $attributes = []) |
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* @method HTML strong(?string $content = '', array $attributes = []) |
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* @method static string strong(?string $content = '', array $attributes = []) |
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* @method HTML style(?string $content = '', array $attributes = []) |
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* @method static string style(?string $content = '', array $attributes = []) |
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* @method HTML sub(?string $content = '', array $attributes = []) |
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* @method static string sub(?string $content = '', array $attributes = []) |
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* @method HTML summary(?string $content = '', array $attributes = []) |
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* @method static string summary(?string $content = '', array $attributes = []) |
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* @method HTML sup(?string $content = '', array $attributes = []) |
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* @method static string sup(?string $content = '', array $attributes = []) |
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* @method HTML svg(?string $content = '', array $attributes = []) |
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* @method static string svg(?string $content = '', array $attributes = []) |
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* @method HTML table(?string $content = '', array $attributes = []) |
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* @method static string table(?string $content = '', array $attributes = []) |
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245
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* @method HTML tbody(?string $content = '', array $attributes = []) |
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246
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* @method static string tbody(?string $content = '', array $attributes = []) |
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247
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* @method HTML td(?string $content = '', array $attributes = []) |
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248
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* @method static string td(?string $content = '', array $attributes = []) |
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249
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* @method HTML template(?string $content = '', array $attributes = []) |
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250
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* @method static string template(?string $content = '', array $attributes = []) |
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251
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* @method HTML textarea(?string $content = '', array $attributes = []) |
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252
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* @method static string textarea(?string $content = '', array $attributes = []) |
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253
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* @method HTML tfoot(?string $content = '', array $attributes = []) |
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254
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* @method static string tfoot(?string $content = '', array $attributes = []) |
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255
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* @method HTML th(?string $content = '', array $attributes = []) |
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256
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* @method static string th(?string $content = '', array $attributes = []) |
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257
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* @method HTML thead(?string $content = '', array $attributes = []) |
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258
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* @method static string thead(?string $content = '', array $attributes = []) |
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259
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* @method HTML time(?string $content = '', array $attributes = []) |
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260
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* @method static string time(?string $content = '', array $attributes = []) |
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261
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* @method HTML title(?string $content = '', array $attributes = []) |
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262
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* @method static string title(?string $content = '', array $attributes = []) |
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263
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* @method HTML tr(?string $content = '', array $attributes = []) |
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264
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* @method static string tr(?string $content = '', array $attributes = []) |
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265
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* @method HTML track(?string $content = '', array $attributes = []) |
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266
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* @method static string track(?string $content = '', array $attributes = []) |
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267
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* @method HTML u(?string $content = '', array $attributes = []) |
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268
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* @method static string u(?string $content = '', array $attributes = []) |
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269
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* @method HTML ul(?string $content = '', array $attributes = []) |
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270
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* @method static string ul(?string $content = '', array $attributes = []) |
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271
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* @method HTML var(?string $content = '', array $attributes = []) |
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272
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* @method static string var(?string $content = '', array $attributes = []) |
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273
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* @method HTML video(?string $content = '', array $attributes = []) |
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274
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* @method static string video(?string $content = '', array $attributes = []) |
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275
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* @method HTML wbr(?string $content = '', array $attributes = []) |
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276
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* @method static string wbr(?string $content = '', array $attributes = []) |
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277
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* |
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278
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* @since 1.0.0 |
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279
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* @api |
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280
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*/ |
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281
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class HTML |
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282
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{ |
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283
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private bool $validate; |
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284
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285
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private array $conditions; |
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286
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287
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private array $buffer; |
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288
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289
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private array $stack; |
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290
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291
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292
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/** |
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293
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* Class constructor. |
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294
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* |
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295
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|
* @param bool $validate Whether to validate the HTML upon return/echo or not. |
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296
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*/ |
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297
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public function __construct(bool $validate = true) |
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298
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{ |
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299
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$this->validate = $validate; |
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300
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$this->buffer = []; |
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301
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$this->stack = []; |
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302
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$this->conditions = []; |
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303
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} |
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304
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305
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306
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/** |
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307
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* Creates a complete HTML element (opening and closing tags) constructed from the specified parameters and pass it to the buffer. |
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308
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* |
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309
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* @param string $name A name of an HTML tag. |
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310
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* @param string|null $content [optional] The text or html content of the element, passing null will make it a self-closing tag. |
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311
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|
* @param string[] $attributes [optional] An associative array of attributes. To indicate a boolean-attribute (no-value-attribute), simply provide a key with value `null` or provide only a value without a key with the name of the attribute. As a shortcut, setting the value as `false` will exclude the attribute. |
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312
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* |
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313
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* @return $this |
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314
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* |
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315
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|
|
* @throws \Exception If the supplied name is invalid. |
|
316
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|
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*/ |
|
317
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|
|
public function element(string $name, ?string $content = '', array $attributes = []): HTML |
|
318
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|
|
{ |
|
319
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|
|
if (!strlen(trim($name))) { |
|
320
|
|
|
$variables = ['class', 'function', 'file', 'line']; |
|
321
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|
|
$backtrace = Misc::backtrace($variables, 1); |
|
322
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|
|
$backtrace = is_array($backtrace) ? $backtrace : array_map('strtoupper', $variables); |
|
323
|
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|
|
324
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|
|
throw new \Exception( |
|
325
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|
|
vsprintf('Invalid name supplied to %s::%s() in %s on line %s. Tag name cannot be an empty string', $backtrace) |
|
326
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|
|
); |
|
327
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|
|
} |
|
328
|
|
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|
|
329
|
|
|
if ($this->isConditionTruthy()) { |
|
330
|
|
|
$tag = $content !== null |
|
331
|
|
|
? '<{name}{attributes}>{content}</{name}>' |
|
332
|
|
|
: '<{name}{attributes} />'; |
|
333
|
|
|
$name = strtolower(trim($name)); |
|
334
|
|
|
$attributes = $this->stringifyAttributes($attributes); |
|
335
|
|
|
|
|
336
|
|
|
$this->buffer[] = $this->translateElement($tag, compact('name', 'content', 'attributes')); |
|
337
|
|
|
} |
|
338
|
|
|
|
|
339
|
|
|
return $this; |
|
340
|
|
|
} |
|
341
|
|
|
|
|
342
|
|
|
/** |
|
343
|
|
|
* Creates an HTML entity from the specified name and pass it to the buffer. |
|
344
|
|
|
* |
|
345
|
|
|
* @param string $name The name of the HTML entity without `&` nor `;`. |
|
346
|
|
|
* |
|
347
|
|
|
* @return $this |
|
348
|
|
|
* |
|
349
|
|
|
* @throws \Exception If the supplied name is invalid. |
|
350
|
|
|
*/ |
|
351
|
|
|
public function entity(string $name): HTML |
|
352
|
|
|
{ |
|
353
|
|
|
if (!strlen(trim($name))) { |
|
354
|
|
|
$variables = ['class', 'function', 'file', 'line']; |
|
355
|
|
|
$backtrace = Misc::backtrace($variables, 1); |
|
356
|
|
|
$backtrace = is_array($backtrace) ? $backtrace : array_map('strtoupper', $variables); |
|
357
|
|
|
|
|
358
|
|
|
throw new \Exception( |
|
359
|
|
|
vsprintf('Invalid name supplied to %s::%s() in %s on line %s. Entity name cannot be an empty string', $backtrace) |
|
360
|
|
|
); |
|
361
|
|
|
} |
|
362
|
|
|
|
|
363
|
|
|
if ($this->isConditionTruthy()) { |
|
364
|
|
|
$entity = sprintf('&%s;', trim($name, '& ;')); |
|
365
|
|
|
$this->buffer[] = $entity; |
|
366
|
|
|
} |
|
367
|
|
|
|
|
368
|
|
|
|
|
369
|
|
|
return $this; |
|
370
|
|
|
} |
|
371
|
|
|
|
|
372
|
|
|
/** |
|
373
|
|
|
* Creates an HTML comment from the specified text and pass it to the buffer. |
|
374
|
|
|
* |
|
375
|
|
|
* @param string $comment The text content of the HTML comment without `<!--` and `-->`. |
|
376
|
|
|
* |
|
377
|
|
|
* @return $this |
|
378
|
|
|
*/ |
|
379
|
|
|
public function comment(string $text): HTML |
|
380
|
|
|
{ |
|
381
|
|
|
if ($this->isConditionTruthy()) { |
|
382
|
|
|
$comment = sprintf('<!-- %s -->', trim($text)); |
|
383
|
|
|
$this->buffer[] = $comment; |
|
384
|
|
|
} |
|
385
|
|
|
|
|
386
|
|
|
return $this; |
|
387
|
|
|
} |
|
388
|
|
|
|
|
389
|
|
|
/** |
|
390
|
|
|
* Creates an arbitrary text-node from the specified text and pass it to the buffer (useful to add some special tags, "\<!DOCTYPE html>" for example). |
|
391
|
|
|
* |
|
392
|
|
|
* @param string $text The text to pass to the buffer. |
|
393
|
|
|
* |
|
394
|
|
|
* @return $this |
|
395
|
|
|
*/ |
|
396
|
|
|
public function node(string $text): HTML |
|
397
|
|
|
{ |
|
398
|
|
|
if ($this->isConditionTruthy()) { |
|
399
|
|
|
$text = trim($text); |
|
400
|
|
|
$this->buffer[] = $text; |
|
401
|
|
|
} |
|
402
|
|
|
|
|
403
|
|
|
return $this; |
|
404
|
|
|
} |
|
405
|
|
|
|
|
406
|
|
|
/** |
|
407
|
|
|
* Creates an HTML opening tag from the specified parameters and pass it to the buffer. Works in conjunction with `self::close()`. |
|
408
|
|
|
* |
|
409
|
|
|
* @param string $name A name of an HTML tag. |
|
410
|
|
|
* @param string[] $attributes [optional] An associative array of attributes. To indicate a boolean-attribute (no-value-attribute), simply provide a key with value `null`. Setting the value as `false` will exclude the attribute. |
|
411
|
|
|
* |
|
412
|
|
|
* @return $this |
|
413
|
|
|
* |
|
414
|
|
|
* @throws \Exception If the supplied name is invalid. |
|
415
|
|
|
*/ |
|
416
|
|
|
public function open(string $name, array $attributes = []): HTML |
|
417
|
|
|
{ |
|
418
|
|
|
if (!strlen($name)) { |
|
419
|
|
|
$variables = ['class', 'function', 'file', 'line']; |
|
420
|
|
|
$backtrace = Misc::backtrace($variables, 1); |
|
421
|
|
|
$backtrace = is_array($backtrace) ? $backtrace : array_map('strtoupper', $variables); |
|
422
|
|
|
|
|
423
|
|
|
throw new \Exception( |
|
424
|
|
|
vsprintf('Invalid name supplied to %s::%s() in %s on line %s. Tag name cannot be an empty string', $backtrace) |
|
425
|
|
|
); |
|
426
|
|
|
} |
|
427
|
|
|
|
|
428
|
|
|
if ($this->isConditionTruthy(1)) { |
|
429
|
|
|
$tag = '<{name}{attributes}>'; |
|
430
|
|
|
$name = strtolower(trim($name)); |
|
431
|
|
|
$attributes = $this->stringifyAttributes($attributes); |
|
432
|
|
|
|
|
433
|
|
|
$this->buffer[] = $this->translateElement($tag, compact('name', 'attributes')); |
|
434
|
|
|
|
|
435
|
|
|
array_push($this->stack, $name); |
|
436
|
|
|
} |
|
437
|
|
|
|
|
438
|
|
|
return $this; |
|
439
|
|
|
} |
|
440
|
|
|
|
|
441
|
|
|
/** |
|
442
|
|
|
* Creates an HTML closing tag matching the last tag opened by `self::open()`. |
|
443
|
|
|
* |
|
444
|
|
|
* @return $this |
|
445
|
|
|
* |
|
446
|
|
|
* @throws \Exception If no tag has been opened. |
|
447
|
|
|
*/ |
|
448
|
|
|
public function close(): HTML |
|
449
|
|
|
{ |
|
450
|
|
|
if (!count($this->stack)) { |
|
451
|
|
|
$variables = ['class', 'function', 'file', 'line']; |
|
452
|
|
|
$backtrace = Misc::backtrace($variables, 1); |
|
453
|
|
|
$backtrace = is_array($backtrace) ? $backtrace : array_map('strtoupper', $variables); |
|
454
|
|
|
|
|
455
|
|
|
throw new \Exception( |
|
456
|
|
|
vsprintf('Not in a context to close a tag! Call to %s::%s() in %s on line %s is superfluous', $backtrace) |
|
457
|
|
|
); |
|
458
|
|
|
} |
|
459
|
|
|
|
|
460
|
|
|
if ($this->isConditionTruthy(-1)) { |
|
461
|
|
|
$tag = '</{name}>'; |
|
462
|
|
|
|
|
463
|
|
|
$name = array_pop($this->stack); |
|
464
|
|
|
|
|
465
|
|
|
$this->buffer[] = $this->translateElement($tag, compact('name')); |
|
466
|
|
|
} |
|
467
|
|
|
|
|
468
|
|
|
return $this; |
|
469
|
|
|
} |
|
470
|
|
|
|
|
471
|
|
|
/** |
|
472
|
|
|
* Takes a callback and executes it after binding $this (HTML) to it, useful for example to execute any PHP code while creating the markup. |
|
473
|
|
|
* |
|
474
|
|
|
* @param callable $callback The callback to call and bind $this to, this callback will also be passed the instance it was called on as the first parameter. |
|
475
|
|
|
* |
|
476
|
|
|
* @return $this |
|
477
|
|
|
*/ |
|
478
|
|
|
public function execute(callable $callback): HTML |
|
479
|
|
|
{ |
|
480
|
|
|
if ($this->isConditionTruthy()) { |
|
481
|
|
|
$boundClosure = \Closure::fromCallable($callback)->bindTo($this); |
|
482
|
|
|
|
|
483
|
|
|
if ($boundClosure !== false) { |
|
484
|
|
|
$boundClosure($this); |
|
485
|
|
|
} else { |
|
486
|
|
|
$callback($this); |
|
487
|
|
|
} |
|
488
|
|
|
} |
|
489
|
|
|
|
|
490
|
|
|
return $this; |
|
491
|
|
|
} |
|
492
|
|
|
|
|
493
|
|
|
/** |
|
494
|
|
|
* Takes a condition (some boolean value) to determine whether or not to create the very next element and pass it to the buffer. |
|
495
|
|
|
* |
|
496
|
|
|
* @param mixed $condition Any value that can be casted into a boolean. |
|
497
|
|
|
* |
|
498
|
|
|
* @return $this |
|
499
|
|
|
*/ |
|
500
|
|
|
public function condition($condition): HTML |
|
501
|
|
|
{ |
|
502
|
|
|
$this->conditions[] = (bool)($condition); |
|
503
|
|
|
|
|
504
|
|
|
return $this; |
|
505
|
|
|
} |
|
506
|
|
|
|
|
507
|
|
|
/** |
|
508
|
|
|
* Determines whether or not the last set condition is truthy or falsy. |
|
509
|
|
|
* |
|
510
|
|
|
* @param int $parent [optional] A flag to indicate condition depth `[+1 = parentOpened, 0 = normal, -1 = parentClosed]`. |
|
511
|
|
|
* |
|
512
|
|
|
* @return bool|null The result of the condition, or null if the passed `$parent` is not in `[-1, 0, +1]`. |
|
513
|
|
|
*/ |
|
514
|
|
|
private function isConditionTruthy(int $parent = 0): ?bool |
|
515
|
|
|
{ |
|
516
|
|
|
static $parentConditions = []; |
|
517
|
|
|
|
|
518
|
|
|
$result = true; |
|
519
|
|
|
|
|
520
|
|
|
if (!empty($this->conditions) || !empty($parentConditions)) { |
|
521
|
|
|
$actualCondition = $this->conditions[count($this->conditions) - 1] ?? $result; |
|
522
|
|
|
$parentCondition = $parentConditions[count($parentConditions) - 1] ?? $result; |
|
523
|
|
|
|
|
524
|
|
|
$condition = $parentCondition & $actualCondition; |
|
525
|
|
|
if (!$condition) { |
|
526
|
|
|
$result = false; |
|
527
|
|
|
} |
|
528
|
|
|
|
|
529
|
|
|
switch ($parent) { |
|
530
|
|
|
case +1: |
|
531
|
|
|
array_push($parentConditions, $condition); |
|
532
|
|
|
break; |
|
533
|
|
|
case -1: |
|
534
|
|
|
array_pop($parentConditions); |
|
535
|
|
|
break; |
|
536
|
|
|
case 0: |
|
537
|
|
|
// NORMAL! |
|
538
|
|
|
break; |
|
539
|
|
|
default: |
|
540
|
|
|
return null; |
|
541
|
|
|
} |
|
542
|
|
|
|
|
543
|
|
|
array_pop($this->conditions); |
|
544
|
|
|
} |
|
545
|
|
|
|
|
546
|
|
|
return $result; |
|
547
|
|
|
} |
|
548
|
|
|
|
|
549
|
|
|
/** |
|
550
|
|
|
* Returns an HTML attributes string from an associative array of attributes. |
|
551
|
|
|
* |
|
552
|
|
|
* @param array $attributes |
|
553
|
|
|
* |
|
554
|
|
|
* @return string |
|
555
|
|
|
*/ |
|
556
|
|
|
private function stringifyAttributes(array $attributes): string |
|
557
|
|
|
{ |
|
558
|
|
|
$attrStr = ''; |
|
559
|
|
|
|
|
560
|
|
|
foreach ($attributes as $name => $value) { |
|
561
|
|
|
if ($value === false) { |
|
562
|
|
|
continue; |
|
563
|
|
|
} |
|
564
|
|
|
|
|
565
|
|
|
$attrStr .= is_string($name) && !is_null($value) |
|
566
|
|
|
? sprintf(' %s="%s"', $name, $value) |
|
567
|
|
|
: sprintf(' %s', ($value ?: $name ?: '')); |
|
568
|
|
|
} |
|
569
|
|
|
|
|
570
|
|
|
return $attrStr; |
|
571
|
|
|
} |
|
572
|
|
|
|
|
573
|
|
|
/** |
|
574
|
|
|
* Replaces variables in the passed string with values with matching key from the passed array. |
|
575
|
|
|
* |
|
576
|
|
|
* @param string $text A string like `{var} world!`. |
|
577
|
|
|
* @param array $variables An array like `['var' => 'Hello']`. |
|
578
|
|
|
* |
|
579
|
|
|
* @return string A string like `Hello world!` |
|
580
|
|
|
*/ |
|
581
|
|
|
private function translateElement(string $text, array $variables = []): string |
|
582
|
|
|
{ |
|
583
|
|
|
$replacements = []; |
|
584
|
|
|
|
|
585
|
|
|
foreach ($variables as $key => $value) { |
|
586
|
|
|
$replacements[sprintf('{%s}', $key)] = $value; |
|
587
|
|
|
} |
|
588
|
|
|
|
|
589
|
|
|
return strtr($text, $replacements); |
|
590
|
|
|
} |
|
591
|
|
|
|
|
592
|
|
|
/** |
|
593
|
|
|
* Asserts that the passed HTML is valid. |
|
594
|
|
|
* |
|
595
|
|
|
* @return void |
|
596
|
|
|
* |
|
597
|
|
|
* @throws \Exception If the passed html is invalid. |
|
598
|
|
|
*/ |
|
599
|
|
|
private function validate(string $html): void |
|
600
|
|
|
{ |
|
601
|
|
|
$html = !empty($html) ? $html : '<br/>'; |
|
602
|
|
|
|
|
603
|
|
|
$xml = libxml_use_internal_errors(true); |
|
604
|
|
|
|
|
605
|
|
|
$dom = new \DOMDocument(); |
|
606
|
|
|
$dom->validateOnParse = true; |
|
607
|
|
|
$dom->loadHTML($html); |
|
608
|
|
|
// $dom->saveHTML(); |
|
609
|
|
|
|
|
610
|
|
|
$ignoredCodes = [801]; |
|
611
|
|
|
$errors = libxml_get_errors(); |
|
612
|
|
|
libxml_clear_errors(); |
|
613
|
|
|
|
|
614
|
|
|
if (!empty($errors) && !in_array($errors[0]->code, $ignoredCodes)) { |
|
615
|
|
|
$file = Misc::backtrace('file', 3); |
|
616
|
|
|
$file = is_string($file) ? $file : 'FILE'; |
|
617
|
|
|
|
|
618
|
|
|
throw new \Exception( |
|
619
|
|
|
vsprintf( |
|
620
|
|
|
'HTML is invalid in %s! Found %s problem(s). Last LibXMLError: [level:%s/code:%s] %s', |
|
621
|
|
|
[$file, count($errors), $errors[0]->level, $errors[0]->code, $errors[0]->message] |
|
622
|
|
|
) |
|
623
|
|
|
); |
|
624
|
|
|
} |
|
625
|
|
|
|
|
626
|
|
|
libxml_use_internal_errors($xml); |
|
627
|
|
|
} |
|
628
|
|
|
|
|
629
|
|
|
/** |
|
630
|
|
|
* Returns the created HTML elements found in the buffer and empties it. |
|
631
|
|
|
* |
|
632
|
|
|
* @return string |
|
633
|
|
|
* |
|
634
|
|
|
* @throws \Exception If not all open elements are closed or the generated html is invalid. |
|
635
|
|
|
*/ |
|
636
|
|
|
public function return(): string |
|
637
|
|
|
{ |
|
638
|
|
|
if (count($this->stack)) { |
|
639
|
|
|
$file = Misc::backtrace('file', 2); |
|
640
|
|
|
$file = is_string($file) ? $file : 'FILE'; |
|
641
|
|
|
|
|
642
|
|
|
throw new \Exception( |
|
643
|
|
|
sprintf( |
|
644
|
|
|
"Cannot return HTML in %s. The following tag(s): '%s' has/have not been closed properly", |
|
645
|
|
|
$file, |
|
646
|
|
|
implode(', ', $this->stack) |
|
647
|
|
|
) |
|
648
|
|
|
); |
|
649
|
|
|
} |
|
650
|
|
|
|
|
651
|
|
|
$html = implode('', $this->buffer); |
|
652
|
|
|
|
|
653
|
|
|
$this->buffer = []; |
|
654
|
|
|
|
|
655
|
|
|
if ($this->validate) { |
|
656
|
|
|
$this->validate($html); |
|
657
|
|
|
} |
|
658
|
|
|
|
|
659
|
|
|
return $html; |
|
660
|
|
|
} |
|
661
|
|
|
|
|
662
|
|
|
/** |
|
663
|
|
|
* Echos the created HTML elements found in the buffer and empties it. |
|
664
|
|
|
* |
|
665
|
|
|
* @return void |
|
666
|
|
|
* |
|
667
|
|
|
* @throws \Exception If not all open elements are closed or the generated html is invalid. |
|
668
|
|
|
*/ |
|
669
|
|
|
public function echo(): void |
|
670
|
|
|
{ |
|
671
|
|
|
echo $this->return(); |
|
672
|
|
|
} |
|
673
|
|
|
|
|
674
|
|
|
/** |
|
675
|
|
|
* Minifies HTML buffers by removing all unnecessary whitespaces and comments. |
|
676
|
|
|
* |
|
677
|
|
|
* @param string $html |
|
678
|
|
|
* |
|
679
|
|
|
* @return string |
|
680
|
|
|
*/ |
|
681
|
|
|
public static function minify(string $html): string |
|
682
|
|
|
{ |
|
683
|
|
|
$patterns = [ |
|
684
|
|
|
'/(\s)+/s' => '$1', // shorten multiple whitespace sequences |
|
685
|
|
|
'/>[^\S ]+/s' => '>', // remove spaces after tag, except one space |
|
686
|
|
|
'/[^\S ]+</s' => '<', // remove spaces before tag, except one space |
|
687
|
|
|
'/>[\s]+</' => '><', // remove spaces between tags, except one space |
|
688
|
|
|
'/<(\s|\t|\r?\n)+/' => '<', // remove spaces, tabs, and new lines after start of the tag |
|
689
|
|
|
'/(\s|\t|\r?\n)+>/' => '>', // remove spaces, tabs, and new lines before end of the tag |
|
690
|
|
|
'/<!--(.|\s)*?-->/' => '', // remove comments |
|
691
|
|
|
]; |
|
692
|
|
|
|
|
693
|
|
|
return preg_replace( |
|
694
|
|
|
array_keys($patterns), |
|
695
|
|
|
array_values($patterns), |
|
696
|
|
|
$html |
|
697
|
|
|
); |
|
698
|
|
|
} |
|
699
|
|
|
|
|
700
|
|
|
|
|
701
|
|
|
/** |
|
702
|
|
|
* Makes HTML tags available as methods on the class. |
|
703
|
|
|
*/ |
|
704
|
|
|
public function __call(string $method, array $arguments) |
|
705
|
|
|
{ |
|
706
|
|
|
$name = $method; |
|
707
|
|
|
$content = $arguments[0] ?? (count($arguments) ? null : ''); |
|
708
|
|
|
$attributes = $arguments[1] ?? []; |
|
709
|
|
|
|
|
710
|
|
|
return $this->element($name, $content, $attributes); |
|
711
|
|
|
} |
|
712
|
|
|
|
|
713
|
|
|
/** |
|
714
|
|
|
* Makes HTML tags available as static methods on the class. |
|
715
|
|
|
*/ |
|
716
|
|
|
public static function __callStatic(string $method, array $arguments) |
|
717
|
|
|
{ |
|
718
|
|
|
static $instance = null; |
|
719
|
|
|
|
|
720
|
|
|
if ($instance === null) { |
|
721
|
|
|
$instance = new HTML(false); |
|
722
|
|
|
} |
|
723
|
|
|
|
|
724
|
|
|
return $instance->condition(true)->{$method}(...$arguments)->return(); |
|
725
|
|
|
} |
|
726
|
|
|
} |
|
727
|
|
|
|
MarwanAlsoltany /
velox
