Online PHP editor | refs for CX0YS

<?php $routes = [ '/path/(\d+)/new/upload$', '/path/selectable_ajax_placements/(\w+)/(\d+)', '/path/anotherpath/to/(\d+)/from/([\d\-\_]+)/to/([\d\-\_]+)$', '/path/list$', ]; foreach ($routes as $route) { echo preg_replace_callback('#(?<=/)([^/]*?[^/a-z0-9_\-][^/]*)(?=/|$)#i', function($match) { if (substr($match[1], -1) === '$' && preg_match('#^[a-z0-9_\-]+$#', $match[1])) { return substr($match[1], 0, -1); } return '1'; }, $route), "\n"; }