An example of how to use a regular expression to extract a piece of information from mixed HTML and JavaScript.

1-path.js

var SysLocalPath = "/abc123z";

2-parse-unique-data.php

<?php
// Request the response from the URL
$url_send = "https://dataquery.domain.com/?profile=$profil&acme=$data";
$result   = file_get_contents( $url_send );

// Find the unique ID and store it in $matches
preg_match( "/(SysLocalPath)\s?(=)\s?(.*)/", $result, $matches );

3-remove-non-alphanums.php

<?php
$data_id = preg_replace( "/[^a-z0-9.]+/i", "", $matches[ count( $matches ) - 1 ] );