Just for curiosity: Is there any advantage by using this?
<?php
ob_start();
?>
<html>
<!--Page contents-->
</html>
<?php
$html = ob_get_contents();
ob_end_clean();
echo $html;
?>
PHP ob_函数用法[关闭]
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- doushenjia8514 2013-10-17 14:53关注
There is none.
However,
ob_startcan take a callback parameter which is extremely useful. I use it to append/t=FILEMTIMEto all static files, ensuring that all files are updated immediately when I upload them.Also, you can use
header,session_start,setcookieand other functions that operate on headers at any time, instead of having to worry whether you've started sending output yet or not.Finally, those last lines are a very expensive no-op. The output buffer is processed at the end of the script anyway.
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- 2013-10-17 14:50回答 1 已采纳 There is none. However, ob_start can take a callback parameter which is extremely useful. I use i
- 2014-11-19 12:09回答 5 已采纳 @ob_flush(); for($i=0;$i<20;$i++){ //...耗时的操作 3秒钟 echo "ABC" . str_repeat(' ', 256); /
- 2013-10-02 14:33回答 2 已采纳 The general principle is you cannot use echo before header(). So, this will never work: echo "thi
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- 2013-12-24 12:18回答 2 已采纳 Thank you for your answer, I figured out why, GZIP is insalled on my machine by the way, it's that
- 2017-02-16 11:13回答 2 已采纳 Answering "why to use it". In order to answer this, we must first understand why we need to use ob
- 2012-02-02 06:53回答 2 已采纳 Hmmm, interesting question. If you are trying to do what I think you are, you'd probably be better
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- 2014-12-01 22:05回答 2 已采纳 When using ob_gzhandler its important that you don't mix content with other encodings. By forcing
- 2012-04-03 16:27回答 3 已采纳 You should do either: ob_start(); or: ob_start('ob_gzhandler'); But not both. You can check
- 2016-04-19 01:20回答 2 已采纳 I have always used this idiom: @ob_flush();@flush(); Quoting from p.21 of Data Push Apps With H
- 2020-10-26 17:17本文是对PHP中ob_start函数的使用方法进行了详细的分析介绍，需要的朋友可以过来参考下，希望对大家有所帮助
- 2014-04-19 01:17回答 1 已采纳 Update: I am surprised but your example does actually work with output buffering. I did not think
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- 2020-12-18 00:34虽然方法很多，但使用起来简便容易的，我觉得还是先判断已经生成的首页文件的生成时间和现有时间之间的差值，如果满足某个值就开始生成，这种方法比较来得容易，不多说了，开始吧！ 在开始之前还是提一下三个函数吧:...
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