gz file header

Today, I encountered a problem in my project. In this project, I need to develop a PC tool (Windows Required). In this case, I need to package some files into a gz file, the gz file is a compressed file in the UNIX system. Later, I found the online

In the project, you have encountered a problem. In the project, you need to develop a PC tool (Windows Required). In this case, you need to package some files into a gz file, the gz file is a compressed file in the UNIX system. Later, I found the

FunctioncheckFileType ($ fileName) {$ filefopen ($ fileName, rb); $ binfread ($ file, 2); read-only 2 bytes fclose ($ file); $ strInfo @ unpack (C2chars, $ bin); C is an unsigned integer, and all found online are c, which is a signed integer, which

　　If not, you can use ultraedit to open several corresponding files for comparison.  1. the file header information extracted from ultraedit. The two characters are regarded as one byte (hexadecimal) JPEG (JPG), file header: ffd8ff PNG (PNG), file

To repair the corrupted gzip compressed file principle, and then refer to the gzip structure diagram: 650) this.width=650; "title=" Presentation 1 "style=" border-left-0px; border-right-width:0px; Background-image:none; border-bottom-width:0px;

By default, Nginx gzip compression is off, gzip compression function is to allow you to save a lot of bandwidth, but will increase the cost of the server CPU, Nginx by default only text/html compression, if you want to compress the content outside

PHP file type verification class function based on the file header. I wrote a verification class here to determine the file format through the file header. (It is not secure. if the user spoofs the file header, it can also pass verification.) copy

I've written a validation class here that uses the file header to determine the file format. (also not completely secure, if the user forged the file header, can also be verified) Copy CodeThe code is as follows: /** * Type of document to be

I've written a validation class here that uses the file header to determine the file format. (also not completely secure, if the user forged the file header, can also be verified) Copy the Code code as follows: /*** Type of document to be checked*

Copy CodeThe code is as follows: Class zip{var $datasec, $ctrl _dir = Array ();var $eof _ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00";var $old _offset = 0; var $dirs = Array (".");function get_list ($zip _name){$zip = @fopen ($zip _name, ' RB