Online PHP editor | output for nVBYl

<?php $comment = " some text {Varinat #3 smth} {Varinat #4 smth else} {Varinat #1 smth else 1} some another text {Varinat #2 smth else 2} {Varinat #5 smth else 5} "; $lines = explode("\n",$comment); $processed = array_map(function($line) { if( preg_match('(^\{Varinat #(\d+))', $line, $match)) { return [$line,$match[1]]; } return [$line,null]; }, $lines); $variant = array_filter($processed,function($data) {return $data[1];}); usort($variant,function($a,$b) {return $a[1] - $b[1];}); $sorted = array_map(function($data) use (&$variant) { if( $data[1]) return array_shift($variant)[0]; else return $data[0]; },$processed); $result = implode("\n",$sorted); echo $result;