3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = "/(い)(.)(.)(.)(.)(.)(.)(.)(.)(ぬ)/u"; $replacement = "\\1<span class='red'>\\2\\3\\4\\5\\6\\7\\8\\9</span>\\10"; $string = "いろはにほへとちりぬ"; echo preg_replace($pattern, $replacement, $string); ?>

preferences:
53.5 ms | 402 KiB | 5 Q