CSS Minifier PHP Example: Check the example on how to use PHP to minify a CSS hardcoded string and output to stdout

minify.php

<?php
    $url = 'https://www.toptal.com/developers/cssminifier/api/raw';

    // init the request, set various options, and send it
    $ch = curl_init();

    curl_setopt_array($ch, [
        CURLOPT_URL => $url,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_POST => true,
        CURLOPT_HTTPHEADER => ["Content-Type: application/x-www-form-urlencoded"],
        CURLOPT_POSTFIELDS => http_build_query([ "input" => "p { color : red; }" ])
    ]);

    $minified = curl_exec($ch);

    // finally, close the request
    curl_close($ch);

    // output the $minified CSS
    echo $minified;
?>

Error Status Codes

If something doesn’t go as expected, these are the status code being used by the API:

400 Missing input
405 HTTP Method not allowed - only POST is accepted
406 Content Type is not acceptable - only application/x-www-form-urlencoded is accepted.
413 Too large payload - max-size is 5MB
422 Malformed input - for invalid css.
429 Too many requests - currently there is a limit of 30 requests per minute.