php tutorials webpage special effects dynamically display the progress of the server running the program if ('source' == $ _get ['act']) {// View the source code show_source ($ _ server ["script_filename"]); exit } // end if set_time_limit (0); for ($ i = 0; $ i <5000; $ i ++) { $ users [] = 'tom_'. $ i; } // end for $ width = 500; / / display the length of the bar, in px $ total = count ($ users); // The total number of records that need to be manipulated $ pix = $ width / $ total; // The length of each bar's progress bar $ progress = 0; / / the current length of the bar ?> <html> <head> <title> </ title> <meta http-equiv = "content-type" content = "text / html; charset = gb2312" /> <style> body, div input {font-family: tahoma; font-size: 9pt} </ style> <script language = "webpage effects"> <! - function updateprogress (smsg, iwidth) { document.getelementbyid ("status"). innerhtml = smsg; document.getelementbyid ("progress"). style.width = iwidth + "px"; document.getelementbyid ("percent"). innerhtml = parseint (iwidth / <? php echo $ width;?> * 100) + "%"; } // -> </ script> </ head>
<body> <div style = "margin: 4px; padding: 8px; border: 1px solid gray; background: #eaeaea; width: <? php echo $ width + 8;?> px"> <div> <font color = "gray"> The following dynamic effects of the progress bar generated by the server-side php program combined with the client web page effects program. </ font> </ div> <div style = "padding: 0; background-color: white; border: 1px solid navy; width: <? php echo $ width;?> px"> <div id = "progress" style = "padding: 0; background-color: # ffcc66; border: 0; width: 0px; text-align: center; height: 16px"> </ div> </ div> <div id = "status"> </ div> <div id = "percent" style = "position: relative; top: -30px; text-align: center; font-weight: bold; font-size: 8pt"> 0% </ div> </ div> <? php flush (); // Send the output to the client browser foreach ($ users as $ user) { // Use null loop here to simulate a more time-consuming operation that needs to be replaced in practice; // If your operation is not time consuming, I think you no need to use this script :) for ($ i = 0; $ i <10000; $ i ++) { ;; } ?> <script language = "javascript"> updateprogress ("operating user" <? php echo $ user;?> "....", <? php echo min ($ width, intval ($ progress));?>); </ script> <? php flush (); // Send the output to the client browser, so that it can immediately execute the javascript program output by the server. $ progress + = $ pix; } // end foreach // Finally, the progress bar is set to the maximum $ width, while displaying the operation is completed ?> <script language = "javascript"> updateprogress ("operation completed!", <? php echo $ width;?>); </ script> <? php flush (); ?> <input type = "button" value = "View source" onclick = "document.location.href = '<? php echo $ _server [' php_self '];?>? act = source'" /> </ body> </ html>
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