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PHP OOP – Template 5

Rozbudowujemy nasz template engine o kolejne dyrektywy. Do dzieła.

Nasz sth3.php wygląda już tak:

<h1>{{ $site_name }}</h1>
@if(isset($name))
<p> Hello [b]{{ $name }}[/b]</p>
@else
<p>Hello guest</p>
@endif

Musimy dodać wzory:

<?php
class TemplateEngine
{
  private array $globalTemplateData = [];

  protected static $patterns = [
    [
        "pattern" => '/\{\{\s*(\$.*?)\s*\}\}/',
        "replace" => "<?php echo $1; ?>" 
    ],
    [
        "pattern" => '/\[b\](.*?)\[\/b\]/s',
        "replace" => "<b>$1</b>" 
    ],
    [
        "pattern" => '/@if\((.*)\)/',
        "replace" => "<?php if ($1) : ?>" 
    ],
    [
        "pattern" => '/@else/',
        "replace" => "<?php else : ?>" 
    ],
    [
        "pattern" => '/@endif/s',
        "replace" => "<?php endif; ?>" 
    ],
];
//(...)
}

I to w zasadzie wszystko – teraz testujemy:

$template = new TemplateEngine(__DIR__);
$template->addGlobal('site_name', 'MyApp');
echo $template->renderTemplate('sth3.php', ['name2' => 'John']);

Zamieńmy name2 na name a zamiast hello guest dostaniemy hello john. 

$template = new TemplateEngine(__DIR__);
$template->addGlobal('site_name', 'MyApp');
echo $template->renderTemplate('sth3.php', ['name' => 'John']);