StackOverflow2013

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2013-12-26T19:31:45.700
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2013-12-28T07:43:18.680
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2013-12-28T07:43:18.680
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<p>The below shows how to write two of the 4 api calls you need to add to your website.</p> <p><strong>Main Page:</strong></p> <pre><code><?php include ('counter.php'); ?> <div class="count_right" id="one"></div> <div class="count_left" id="two"></div> <button class="vote_right" name="clicks1" onclick="addCount1()"></button> <button class="vote_left" name="clicks2" onclick="addCount2()"></button> </code></pre> <p><strong>JS:</strong></p> <pre><code><script type="text/javascript"> var valueOne = //use ajax (GET) to call the page for count1; var valueTwo = //use ajax (GET) to call the page for count2; $(document).ready(function(){ $('#one').html(valueOne); $('#two').html(valueTwo); }); function addCount1(){ //use ajax (POST/PUT) to call a page that adds 1 to your text file thing for count1 } function addCount2(){ //use ajax (POST/PUT) to call a page that adds 1 to your text file thing for count2 } </script> </code></pre> <p><strong>New API Page (for count1):</strong></p> <pre><code><?php class IntegerValue implements JsonSerializable { public function __construct($number) { $this->number = (integer) $number; } public function jsonSerialize() { return $this->number; } } echo json_encode(new IntegerValue(getClickCount1()), JSON_PRETTY_PRINT); ?> </code></pre> <p><strong>New API page (for count2):</strong></p> <pre><code><?php class IntegerValue implements JsonSerializable { public function __construct($number) { $this->number = (integer) $number; } public function jsonSerialize() { return $this->number; } } echo json_encode(new IntegerValue(getClickCount2()), JSON_PRETTY_PRINT); ?> </code></pre> <p><strong>How PHP and JavaScript work</strong></p> <p>On initial page load: The process flow looks like this:</p> <blockquote> <p>Server Side code (php) -> sends data to client -> browser begins rendering and executing JS</p> </blockquote> <p>On form Submit:</p> <blockquote> <p>Client Executes code (javascript) -> Sends data to server -> Server gets data and processes (PHP)</p> </blockquote> <p>Because of this if you don't want the page to "refresh" you'd have to use JavaScript and the best way of handling this is <code>AJAX</code> if you use a form you are going to get a refresh also known as a POST-BACK. Otherwise with <code>AJAX</code> you can easily just send a <code>POST</code> or a <code>GET</code> and it won't refresh.</p>
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