How to Convert Markdown Bold and Italic to HTML using PHP?

How to Convert Markdown to HTML in PHP

When working with user-generated text, it often becomes necessary to process it before rendering it on your website or application. Markdown is a lightweight markup language that allows users to format text easily and consistently. In PHP, you can use regular expressions to convert Markdown to HTML.

Converting Text to Bold and Italic Using PHP

Specific characters, such as asterisks, can be used within text to indicate formatting. For example, double asterisks can denote bold text, while a single asterisk can denote italicized text. To convert this Markdown to HTML in PHP, you can utilize the following code snippet:

$text = "**Hello World** of PHP";
$text = preg_replace('#\*{2}(.*?)\*{2}#', '<b></b>', $text);
$text = preg_replace('#\*{1}(.*?)\*{1}#', '<i></i>', $text);
echo $text;

This approach uses the preg_replace function with regular expressions to match and replace patterns within the text. The regular expression #*{2}(.*?)*{2}# matches text enclosed by two asterisks, and the replacement string $1 wraps it in HTML bold tags. Similarly, the regular expression #*{1}(.*?)*{1}# matches text enclosed by one asterisk, and the replacement string $1 wraps it in HTML italic tags.

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