jwrightnisha Posted December 29, 2007 Share Posted December 29, 2007 Hello, I am trying to increment a php variable by clicking on a button. I've tried placing the variable in various spots and experimented with global and static keywords but I just can't get the variable to increment. Any help would be greatly appreciated. Cheers, James <html> <head> <title>Increment</title> <?php static $i = 0; ?> </head> <body> <?php function incrementI() { $i++; return $i++; } ?> <SCRIPT language="JavaScript"> <!-- function f1() { var val = "<?php echo incrementI(); ?>"; var message = "The value of i now is " + val; alert(message) } //--> </SCRIPT> <input name="btnNext" type="button" id="btnNext" onClick="f1(); " value="Next"> </body> </html> Link to comment https://forums.phpfreaks.com/topic/83542-global-variable-counter/ Share on other sites More sharing options...
PFMaBiSmAd Posted December 29, 2007 Share Posted December 29, 2007 A web page in a browser cannot directly "call" php code on the server. A browser can only make http/https requests to the web server. Your button/link would either need to request the URL of a page that contains php code to increment the value or you can use AJAX to make the http request to the page. You will also need to store the variable that is being incremented in a session (or a database) because all the resources that a .php page uses are destroyed when the code on that page reaches the end of the page. Static variables in functions are only static for the page they are on. They don't persist between page visits or page refreshes. Link to comment https://forums.phpfreaks.com/topic/83542-global-variable-counter/#findComment-425072 Share on other sites More sharing options...
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