How to pass a variable into a file path in PHP -


i trying pass user entered company path determine content displayed. have company submitting page form on , path content display. include mkdir if new company name.

$path = '(uploadedfiles/($_post['companyname']))'; $dirs = scandir($path);

not sure why getting undefined index error. here portion asking name on page named admin.php

print '<form action="admin.php" method="post">'.php_eol;             print' <h4> enter name of company new uploads belong to.</h4>';             print'    <label class="control-label"    `for="companyname">companyname</label>';`             print'      <input type="text" name="" id="companyname" placeholder="enter comapny name ">';             print'      <button type="submit" class="btn">enter</button>';             print' </div>';

the best way (zend code style guide) concat this:

$path = 'uploadedfiles/' . $_post['companyname']; // works double-                                                   // , single-quotes

but warned: accepting user input, non-validated system can result in hacking attempts.

another way this:

$path = "uploadedfiles/{$_post['companyname']}"; // double-quotes

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