traverse

var gulp         = require("gulp");
var sourcemaps   = require("gulp-sourcemaps");
var sass         = require("gulp-sass");
var autoprefixer = require("gulp-autoprefixer");

gulp.task("sass", function() {
  gulp.src("scss/**/*.scss")
    .pipe(sourcemaps.init())
    .pipe(sass().on("error", sass.logError))
    .pipe(sourcemaps.write())

traverse

<?php

$urls = [];


foreach ($urls as $url) {

  $data = file_get_contents($url);

  $date_regex = '|<a href="\/party\/day\/(\d*)\/(\d*)\/(\d*)">|';