Script to draw Google charts API and image-charts output side-by-side to compare differences

test_graph.php

<?php

/**
used for dev/testing in conjunction with https://gist.github.com/doctea/134fa35dd359380071ad426377d28cc5
*/

if (!function_exists('print_rp')) {
        function print_rp($data, $message = "output:") {
                ?><pre><?php print htmlspecialchars($message) ?><?php  print_r($data) ?></pre>
                <?php
        }
}


function getUrl($params, $API_URL = 'http://chart.apis.google.com/chart') {
    //$API_URL = 'http://chart.apis.google.com/chart';
        //$API_URL = 'https://image-charts.com/chart'; // Tristan3dtotal for https://devwiki.3dtotal.com/problem:shop.3dtotal.com:adminhtml:dashboard_graph_fails_to_load_503_tunnel_unable_to_read_response_or_response_is_empty

        $p = array();
        foreach ($params as $name => $value) {
                $p[] = $name . '=' .urlencode($value);
        }
        return $API_URL . '?' . implode('&', $p);
}
?>

<h1>Test graph!</h1><?php


$input = $_REQUEST['input'];

if ($input=="") {
        $input=<<<EOD
                array (
                  'cht' => 'lc',
                  'chf' => 'bg,s,f4f4f4|c,lg,90,ffffff,0.1,ededed,0',
                  'chm' => 'B,f4d4b2,0,0,0',
                  'chco' => 'db4814',
                  'chd' => 'e:jTYthcgCb.YjdalJmPfy68AA',
                  'chxt' => 'x,y',
                  'chxl' => '0:||02/2018||05/2018||08/2018||10/2018||12/2018||02/2019|1:|0|10000|20000|30000|40000|50000',
                  'chs' => '587x300',
                  'chg' => '9.0909090909091,20,1,0',
                );
EOD;
}



?>
<form>
        <textarea cols=140 rows=20 name="input"><?php print htmlspecialchars($input) ?></textarea>
        <input type="submit" />
</form>

<?php

eval("\$data = $input;");
print_rp($data, "decoded data:");



$sp = explode(":", $data['chxl']);
$axis_x = explode("|", $sp[1]);
//$axis_x =
 array_pop ($axis_x);
$axis_y = explode("|", $sp[2]);

print_rp($axis_x, "Axis X:");
print_rp($axis_y, "Axis Y:");


?>
<hr>
<img src="<?php print getUrl($data) ?>" />

<img src="<?php print getUrl($data, 'http://image-charts.com/chart') ?>" />
<hr>
Done.