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Showing results for tags 'ob_start'.
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Hey All, Need to pass the current window width to a PHP class which creates a slide show presentation. The presentation image sizes need calculated for all devices including mobile and smart phone (mobile web). Problem is, PHP is server side and doesn't care about the windows width. I'm using Javascript to acquire the window width and pass that value to PHP - before calling the class that create the presentation. My workaround is using Output Buffering: <php ob_start(); //starts buffering ?> <script> var wwidth = screen.width; document.write(wwidth): //output </script> <?php $windowwidth = ob_get_clean(); //works error_log("Window width is: ".$windowwidth); //continue on with the rest of the script ?> I dislike ducking in and out of PHP like this. And I'm not able to use Javascript XMLHttpRequest because I need the size before the class is called, on the current page. Any alternative suggestions? Thanks in advance -
My web-page loops through and echoes all 50,000 entries from a several-column mySQL database (part number, price, description, etc.). It is tedious for me, because It takes about a full minute for my browser to completely load it. I had an idea: Use "ob_start" at the beginning of the script, and insert an "ob_end_flush()" assertion in my "while" loop to get executed every 50 loops, like this: <?php ob_start(); ## access big mySQL database and output it to browser $i=0; while ( $a_row = mysql_fetch_assoc($result) ) { # echo output to browser if($i %50 == 0) { ob_end_flush(); } } ?> That cut the time down from 60 seconds down to about a second and a half. The problem is, the results are goofy (several mySQL rows missing, didn't get output to browser). Is there a better way? Or, am I on the right track? And, if I'm on the right track, what can I do to fix this? Thank you.
