readfile

Reading mp4 files with PHP

由 ﹥＞﹥吖頭↗ 提交于 2019-12-17 06:13:40
问题 I'm trying to read mp4 file with PHP and what I'm doing now is this: <?php header("Content-Length: filesize"); readfile('file.mp4'); ?> but this way I can't skip or even go back until the video is not loaded 100%. Of course when I read directly from the file (video.mp4) everything goes well. Thanks. 回答1: You need to implement the skipping functionality yourself in PHP. This is a code snippet that will do that. <?php $path = 'file.mp4'; $size=filesize($path); $fm=@fopen($path,'rb'); if(!$fm) {

The fastest way to read input in Python

由 最后都变了- 提交于 2019-12-17 04:35:10
问题 I want to read a huge text file that contains list of lists of integers. Now I'm doing the following: G = [] with open("test.txt", 'r') as f: for line in f: G.append(list(map(int,line.split()))) However, it takes about 17 secs (via timeit). Is there any way to reduce this time? Maybe, there is a way not to use map. 回答1: numpy has the functions loadtxt and genfromtxt , but neither is particularly fast. One of the fastest text readers available in a widely distributed library is the read_csv

nodeJS核心模块介绍

由 ♀尐吖头ヾ 提交于 2019-12-15 18:50:01
fs模块 fs模块是nodejs中最常用的一个模块，因此掌握fs模块非常的有必要，fs模块的方法非常多,用到了哪个查哪个即可。 文档地址：http://nodejs.cn/api/fs.html 在nodejs中，提供了fs模块，这是node的核心模块 注意： 除了global模块中的内容可以直接使用，其他模块都是需要加载的。 fs模块不是全局的，不能直接使用。因此需要导入才能使用。 var fs = require ( "fs" ) ; 读取文件 语法：fs.readFile(path[, options], callback) 方式一：不传编码参数 //参数1： 文件的名字 //参数2： 读取文件的回调函数 //参数1：错误对象，如果读取失败，err会包含错误信息，如果读取成功，err是null //参数2：读取成功后的数据（是一个Buffer对象） fs . readFile ( "data.txt" , function ( err , data ) { console . log ( err ) ; console . log ( data ) ; } ) ; 方式二：传编码参数 //参数1： 文件的路径 //参数2： 编码，如果设置了，返回一个字符串，如果没有设置，会返回一个buffer对象 //参数3： 回调函数 fs . readFile ( "data.txt"

PHP force downloading .xlsx file corrupt

由 夙愿已清 提交于 2019-12-14 03:47:24
问题 I am working on a site that allows teachers to upload documents and students download them. However, there is a problem. Microsoft Word (.docx) files download perfectly, but when downloading an excel (xlsx) file, excel gives a "This file is corrupt and cannot be opened" dialog. Any help with this would be greatly appreciated! My download code is as follows: case 'xlsx': header('Content-type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'); header('Content-Disposition:

How to read from text file to array? [closed]

由 北慕城南 提交于 2019-12-14 03:33:22
问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . what's up everybody, I have this problem in my code and I couldn't figure out how to read from text file and put it in 2-dimension

“ReadFile Function” is there a way that I can no longer declare specific number of bytes to be read?

由 安稳与你 提交于 2019-12-13 17:24:48
问题 I'm trying to make a program using windows API in C++ The goal is to read the content of the text file that I've created and able to manipulate the content using bitwise XOR (change to lowercase and uppercase, vice versa) then put the manipulated content again inside of a text file. Here the flow of the program that I've used: Open text file using CreateFile. Put the content of the text file on a created malloc. Manipulate the content of the text file using bitwise XOR (xor = 20). Then put

How can I read specific colums from a txt file in python? [closed]

由 早过忘川 提交于 2019-12-13 09:36:26
问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed last year . I have a .txt dataset like this: user_000044 2009-04-24 13:47:07 Spandau Ballet Through The Barricades I have to read the last two colums, Spandau Ballet as unique and Through the Barricades as unique. How can I do this? In need to create two array, artists =[] and tracks = [] in

how do I count unique words of text files in specific directory with Python? [closed]

由 故事扮演 提交于 2019-12-13 09:28:39
问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . im writing a report and I need to count unique words of text files. My texts are in D:\shakeall and they're totally 42 files... I know some about Python, but I don't know what to do now. This is what I know how

Special character in the file exit the while loop in Perl

由 ☆樱花仙子☆ 提交于 2019-12-13 08:29:52
问题 I wrote a simple parser for a .txt file with the following instructions: my $file2 = "test.txt"; open ($process, "<",$file2) or die "couldn't manage to open the file:$file2!"; while (<$process>) { ... } In some files that I am trying to parse there is a special character that is like the right arrow (->) and that I don't manage to paste here from the file. Every time the parser hits that character (->), it exits the file without processing it till the end. Is there a way to avoid it and

Reading a File in C: different behavior for “r” and “a+” flags

由 人盡茶涼 提交于 2019-12-13 06:00:14
问题 I want to open a file, read its contents, and then append a line to the file. I thought I should use the "a+" flag for the task. I have a function which opens a file and returns a pointer to this file. FILE* open_weekly_disk_file(char* filename){ FILE* weekly_log; weekly_log = fopen(filename, "a+"); //weekly_log = fopen(filename, "r"); if(! weekly_log){ printf("The attempt to open the weekly log failed!\n"); return NULL; } else{ return weekly_log; } } Then I have a function which calls the
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