Created
January 13, 2015 06:11
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Very basic web-application in PHP, allowing to store and retrieve info with the help of json file
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| <?php | |
| function loadData() { | |
| $file = file_get_contents('data.json'); | |
| if ($file === false) { | |
| $file = '[]'; | |
| } | |
| $data = json_decode($file); | |
| return empty($data) ? array() : $data; | |
| } | |
| function saveData($data) { | |
| file_put_contents('data.json', json_encode($data)); | |
| } | |
| function compareRecords($a, $b) { | |
| return ($a->t < $b->t) ? -1 : (($a->t > $b->t) ? 1 : 0); | |
| } | |
| function addRecord(&$data, $time, $name) { | |
| global $error; | |
| $time = trim($time); | |
| $name = trim($name); | |
| if (!preg_match('/^\d\d\:\d\d$/', $time)) { | |
| $error = 'Time format should be ##:##'; | |
| return; | |
| } | |
| if (strlen($name) < 4) { | |
| $error = 'Name is too short'; | |
| return; | |
| } | |
| $rec = new stdClass(); | |
| $rec->name = $name; | |
| $rec->time = date('Y-m-d') . " $time"; | |
| $data[] = $rec; | |
| saveData($data); | |
| } | |
| $curTime = time(); | |
| $data = loadData(); | |
| if (isset($_POST['time']) && isset($_POST['name'])) { | |
| $time = $_POST['time']; | |
| $name = $_POST['name']; | |
| addRecord($data, $time, $name); | |
| } | |
| $dataNew = array(); | |
| foreach ($data as $rec) { | |
| $rec->t = strtotime("{$rec->time}:00 GMT+3"); | |
| if ($rec->t < $curTime) { | |
| continue; | |
| } | |
| $s = explode(' ', $rec->time); | |
| $rec->showTime = $s[1]; | |
| $dataNew[] = $rec; | |
| } | |
| $data = $dataNew; | |
| usort($data, "compareRecords"); | |
| $curTime = date('H:i', $curTime + 3 * 3600); | |
| require 'template.html'; |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>HitchHiking in DA</title> | |
| <style> | |
| .striped tr:nth-child(odd) {background: #def} | |
| .centered {text-align: center} | |
| </style> | |
| </head> | |
| <body style="font-family:Arial"> | |
| <div style="text-align:center;width:1000px;margin:0px auto;"> | |
| <?php if (isset($error)) : ?> | |
| <div style="background:pink;color:blue;"><?= $error ?></div> | |
| <?php endif; ?> | |
| <h1>Hello, HitchHiker!</h1> | |
| <form action="./" method="post"> | |
| <div>Leave your name and time of departure from office</div><br/> | |
| <label>Time: <input type="text" name="time" size="6" placeholder="18:10" class="centered"/></label> | |
| | |
| <label>Name: <input type="text" name="name" placeholder="John Doe" class="centered"/></label> | |
| | |
| <input type="submit" value="Add me!"/> | |
| </form> | |
| <br/> | |
| <hr style="color:#888;width:60%"/> | |
| <p>Current time: <?= $curTime ?></p> | |
| <table class="striped" style="width:300px;margin:0px auto;"> | |
| <tr><th>Time</th><th>Name</th></tr> | |
| <?php foreach ($data as $rec) : ?> | |
| <tr> | |
| <td><?= $rec->showTime ?></td> | |
| <td><?= $rec->name ?></td> | |
| </tr> | |
| <?php endforeach; ?> | |
| </table> | |
| </div> | |
| </body> | |
| </html> |
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