3v4l.org

run code in 300+ PHP versions simultaneously
<?php $beautifier = new DOMDocument('', 'UTF-8'); $beautifier->preserveWhiteSpace = false; $beautifier->formatOutput = true; $beautifier->loadHTML(<<<'HTML' <!DOCTYPE html> <html> <head><title>Hello world</title> <meta charset="UTF-8"> </head><body> <header>test</header> </body> </html> HTML , LIBXML_NOERROR); echo $beautifier->saveHTML();
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
<!DOCTYPE html> <html> <head> <title>Hello world</title> <meta charset="UTF-8"> </head> <body> <header>test</header> </body> </html>
preferences:
86.73 ms | 407 KiB | 5 Q