league/commonmark
Extensible PHP Markdown parser supporting the full CommonMark spec and GitHub-Flavored Markdown. Works with PHP 7.4+ (mbstring) and provides simple converters to turn Markdown into HTML with configurable safety options.
layout: default title: Smart Punctuation Extension description: The SmartPunctExtension intelligently converts ASCII quotes, dashes, and ellipses to their Unicode equivalents redirect_from:
The SmartPunctExtension Intelligently converts ASCII quotes, dashes, and ellipses to their Unicode equivalents.
For example, this Markdown...
"CommonMark is the PHP League's Markdown parser," she said. "It's super-configurable... you can even use additional extensions to expand its capabilities -- just like this one!"
Will result in this HTML:
<p>“CommonMark is the PHP League’s Markdown parser,” she said. “It’s super-configurable… you can even use additional extensions to expand its capabilities – just like this one!”</p>
This extension is bundled with league/commonmark. This library can be installed via Composer:
composer require league/commonmark
See the installation section for more details.
Extensions can be added to any new Environment:
use League\CommonMark\Environment\Environment;
use League\CommonMark\Extension\CommonMark\CommonMarkCoreExtension;
use League\CommonMark\Extension\SmartPunct\SmartPunctExtension;
use League\CommonMark\MarkdownConverter;
// Define your configuration, if needed
$config = [
'smartpunct' => [
'double_quote_opener' => '“',
'double_quote_closer' => '”',
'single_quote_opener' => '‘',
'single_quote_closer' => '’',
],
];
// Configure the Environment with all the CommonMark parsers/renderers
$environment = new Environment($config);
$environment->addExtension(new CommonMarkCoreExtension());
// Add this extension
$environment->addExtension(new SmartPunctExtension());
// Instantiate the converter engine and start converting some Markdown!
$converter = new MarkdownConverter($environment);
echo $converter->convert('# Hello World!');
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