读取文件内容的最快方法 [英] Fastest way possible to read contents of a file

问题描述

好吧，我正在寻找最快的方法来通过服务器上的文件路径通过PHP读取文件的所有内容，这些文件也可能是巨大的。所以它是非常重要的，它只是尽快读取它。

它是逐行阅读比阅读整个内容更快？虽然，我记得有些读了这个，读完整个内容会导致大文件的错误。这是真的吗？

解决方案

如果要将文件的全部内容加载到PHP变量， >（可能最快）方式是 file_get_contents



但是，如果您正在处理大文件，则将整个文件加载到内存中可能不是这样的好主意：你可能最终得到一个 <错误，因为PHP不允许您的脚本使用超过（通常）一对夫妇巨型 -

所以，即使它不是最快的解决方案，按行读取文件（ fopen + fgets + fclose ），并且不需要将整个文件加载到记忆，可能是必要的...

Ok, I'm looking for the fastest possible way to read all of the contents of a file via php with a filepath on the server, also these files can be huge. So it's very important that it does a READ ONLY to it as fast as possible.

Is reading it line by line faster than reading the entire contents? Though, I remember reading up on this some, that reading the entire contents can produce errors for huge files. Is this true?

解决方案

If you want to load the full-content of a file to a PHP variable, the easiest (and, probably fastest) way would be file_get_contents.

But, if you are working with big files, loading the whole file into memory might not be such a good idea : you'll probably end up with a memory_limit error, as PHP will not allow your script to use more than (usually) a couple mega-bytes of memory.

So, even if it's not the fastest solution, reading the file line by line (fopen+fgets+fclose), and working with those lines on the fly, without loading the whole file into memory, might be necessary...

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