bulldog11 Posted August 18, 2014 Share Posted August 18, 2014 I need a button in php to change my background color every 5 presses with a random one, every five presses the color have to change once and need to stay for the next 5 presses. here is my code <head> <title>click 5 times</title> <?php $a=array(0,1,2,3,4,5,6,7,8,9,"a","b","c","d","e","f"); $culoare="#"; for($i=1; $i<6;$i++) $culoare.=$a[rand(0,16)]; session_start(); $_SESSION['counter'] = isset($_SESSION['counter']) ? $_SESSION['counter'] : 0; if($_POST['sub']) { $_SESSION['counter']++; echo "<br/>"; echo $culoare; echo "<body bgcolor='<?phpecho $culoare;?>'></body>"; } ?> </head> <body > <form action='' method="post"> <input type="submit" name="sub" value="click" /> <input type="hidden" name="counter" value="<?php print $_POST['counter']; ?>" /> </form> </body> Link to comment https://forums.phpfreaks.com/topic/290507-i-need-a-php-button-to-change-background-color/ Share on other sites More sharing options...
WebOutGateway Posted August 18, 2014 Share Posted August 18, 2014 Hi, bulldog11!Maybe you should use a Javascript. Change your input submit to button and use the .onclick event to trigger a function that will change the background color.For example: <button onclick="thisFunction()">Change color.</button> And the script goes: <script> function thisFunction() { ... } </script> You can also refer to this example: http://www.webcodingtech.com/javascript/change-background-color.php#I hope this helps. Thank you. Link to comment https://forums.phpfreaks.com/topic/290507-i-need-a-php-button-to-change-background-color/#findComment-1488102 Share on other sites More sharing options...
Ch0cu3r Posted August 18, 2014 Share Posted August 18, 2014 Not the sort of thing PHP should be used for. Javascript would be better suited for this. But to answer your question. To generate a new colour every five button clicks you need to check when $_SESSION['counter'] becomes divisible by 5. When this is the case you'd generate a new background colour. NOTE: in order to maintain the current background colour you will need to save its current value to the session. You'd then get the background colour from the session on page load. Example code if($_SESSION['counter'] % 5 == 0) { // generate new background colour // save new background colour to the session } Link to comment https://forums.phpfreaks.com/topic/290507-i-need-a-php-button-to-change-background-color/#findComment-1488103 Share on other sites More sharing options...
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