3v4l.org

run code in 300+ PHP versions simultaneously
<?php $xml = <<<XML <html> <head><HEADER/></head> <body> <CONTENT/> </body> <FOOTER/> </html> XML; $content = "<div id='main'>asdf asdf</div>"; $header = "<title>page 1</title>"; $footer = "<script type='text/javascript'></script>"; $xml = preg_replace('/<CONTENT\/>/',$content,$xml,1); $xml = preg_replace('/<HEADER\/>/',$header,$xml,1); $xml = preg_replace('/<FOOTER\/>/',$footer,$xml,1);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4

preferences:
294.91 ms | 405 KiB | 453 Q