ABhj60bd

1<?PHP
2/**
3 * Demonstrates using the OpenFDA API.
4 */
5
6function get_api_key_form() {
7    $frm = "<p>Please enter you API Key.</p>\n
8    <form method=\"post\" action=\"\">\n
9        API Key: <input type=\"text\" name=\"api_key\">\n
10        <input type=\"submit\">\n
11    </form>\n";
12
13    return $frm;
14}
15
16function save_data($fname, $data) {
17    $fh = fopen($fname, 'w');
18    fwrite($fh, $data);
19    fclose($fh);
20}
21
22try {
23    $foodFile = './food.json';
24    $ddFile = './dropdown_list.html';
25
26    /* Main application config file. */
27    $mainConfigFile = __DIR__ . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'app-main.php';
28    if (!file_exists($mainConfigFile)) throw new Exception("ERROR: Could not locate application config file.");
29    include_once($mainConfigFile);
30
31    /* Header file for HTML. */
32    $headerFile = __DIR__ . DIRECTORY_SEPARATOR . 'view' . DIRECTORY_SEPARATOR . 'header.php';
33    if (!file_exists($headerFile)) throw new Exception("ERROR: Could not locate HTML header file.");
34    $pageTitle = "Customers DEMO";
35    include_once($headerFile);
36
37    if ($_SERVER["REQUEST_METHOD"] == "POST") {
38
39        if (!empty($_POST['api_key'])) {
40            /* Get list. */
41            $api_key = filter_input(INPUT_POST, 'api_key', FILTER_SANITIZE_SPECIAL_CHARS);
42            $msg = "<p>API Key = {$api_key}<p>";
43            $url = "https://api.nal.usda.gov/fdc/v1/foods/search?api_key={$api_key}";
44            $data = [
45                'collection' => 'food'
46            ];
47            $curl = curl_init($url);
48            curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
49            curl_setopt($curl, CURLOPT_POST, true);
50            curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($data));
51            curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
52            curl_setopt($curl, CURLOPT_ENCODING, "");
53            curl_setopt($curl, CURLOPT_MAXREDIRS, 10);
54            curl_setopt($curl, CURLOPT_TIMEOUT, 30);
55            curl_setopt($curl, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
56            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "GET");
57            curl_setopt($curl, CURLOPT_HTTPHEADER, [
58                "x-rapidapi-host: developer.nrel.gov",
59                "x-rapidapi-key: Wz1LagBw8fyMm2JfRYeiZjc0tpwnM24ACi1vY3nS",
60                "Content-Type: application/json"
61            ]);
62            $response = curl_exec($curl);
63            if(!empty($response)) {
64                /* Save most recent list to file. */
65                save_data($foodFile, $response);
66            } else {
67                /* Read previously saved list when no response. */
68                if (!file_exists($foodFile)) throw new Exception("ERROR: Could not locate JSON food file.");
69                $response = file_get_contents($foodFile);
70            }
71            curl_close($curl);
72            
73            $json = json_decode($response, true);
74
75            $y = 0;
76            $option = '';
77            foreach ($json['foods'] as $food):
78                $option = $option . "<option value={$y}>{$food['description']} {$food['brandOwner']}</option>\n";
79                $y++;
80            endforeach;
81
82
83            $msg = $msg . "
84            <form action=\"\" method=\"post\">\n
85                <input type=hidden name=p3 value=3>\n
86                <label for=\"select1\">Select</label>\n
87                <select style=\"width: 400px\" id=\"\select1\" name=\"select1\">\n
88                    {$option}
89                </select>\n
90                <button type=\"submit\" id=\"submit\">Submit</button>\n
91            </form>    
92            ";
93
94            save_data($ddFile, $msg);
95
96        } elseif (!empty($_POST['p3'])) {
97            /* Get Food Info. */
98            $foodFile = './food.json';
99            if (!file_exists($foodFile)) throw new Exception("ERROR: Could not locate JSON food file.");
100            $json = file_get_contents($foodFile);
101            $json = json_decode($json, true);
102
103            $y = filter_input(INPUT_POST, 'select1', FILTER_SANITIZE_SPECIAL_CHARS);
104            $msg = "FDC Id: {$json['foods'][$y]['fdcId']}<br/>\n
105                    Description: {$json['foods'][$y]['description']}<br/>\n";
106        
107            if (empty($json['foods'][$y]['brandOwner'])) {
108                $msg = $msg . 'Company:';
109            } else {
110            $msg = $msg . "Company: {$json['foods'][$y]['brandOwner']}\n";
111            }
112
113            $x = 0;
114            while ($x <= 13) {
115                $msg = $msg . "{$json['foods'][$y]['foodNutrients'][$x]['nutrientName']}
116                    {$json['foods'][$y]['foodNutrients'][$x]['nutrientNumber']} {$json['foods'][$y]['foodNutrients'][$x]['unitName']}<br>\n";
117                $x++;
118            }
119
120            if (!file_exists($ddFile)) throw new Exception("ERROR: Could not locate file for drop-down list.");
121            $msg = $msg . file_get_contents($ddFile);
122        } else {
123            /* Get API Key. */
124            $msg = "<p>No form data found.<p>" . get_api_key_form();
125        }
126    } else {
127        $msg = get_api_key_form();
128    }
129
130    /* Display output. */
131    echo $msg;
132
133    /* Footer file for HTML. */
134    $footerFile = __DIR__ . DIRECTORY_SEPARATOR . 'view' . DIRECTORY_SEPARATOR . 'footer.php';
135    if (!file_exists($footerFile)) throw new Exception("ERROR: Could not locate HTML footer file.");
136
137} catch (Exception $e) {
138    list($sTag, $eTag) = array("\n", "\n");
139    if (file_exists($headerFile))  list($sTag, $eTag) = array("\n<p class=\"error\">", "</p>\n");
140    $msg = "{$sTag}{$e->getMessage()}{$eTag} {$sTag}See on line # {$e->getLine()} in file {$e->getFile()}{$eTag}";
141    echo($msg);
142} finally {
143    if (file_exists($headerFile)) {
144        include_once($footerFile);
145    }
146}