bin2hex

Functions; functionpictype ($ file) {* $ response; $ jpg_headerxffxd8; * $ headerfile_get_contents ($ file, 0, NULL,); echobin2hex ($ Php obtains the header information to determine whether the image type is $ filename = '617.gif '. function pictype

/* Xuanmu */Houjie I want to deduct something from the SWF file and read the format of the file for the whole 2 weeks ...... -_-#However, the rule can be parsed almost now. At the beginning, it was a bit dizzy to see this structure. In fact, you can

Back up the old post and pull it ,:)---------------------------------------------------------------------------Hey, I simply wrote hex/bin both positive and negative conversions. Maybe I can copy my own program later. HIA //:

This article mainly introduces the example of the php symmetric encryption algorithm. For more information, see This article mainly introduces the example of the php symmetric encryption algorithm. For more information, see Php symmetric

PHP Symmetric encryption algorithm KEY is a previously defined constantCopy the Code code as follows:Mcrypt::encrypt ();Mcrypt::d ecrypt (); Copy the Code code as follows:Defined (' ROOT ') or exit (' Access Denied '); Class mcrypt{public static

Randomness in PHP-do you feel lucky ?. Randomness in PHP-do you feel lucky? This article analyzes the issues related to generating random numbers for encryption. PHP5 does not provide a simple mechanism to generate randomness in strong cryptographic

We often see a number of sites by city name or alphabetical ranking, I would like to introduce how this thing to achieve it, we share a section of the use of PHP to obtain the Chinese characters in the first character of the letter. The

How can I remove the UTF-8 bom header? Google, 360 browser, and QQ browser have bom headers on the top of the webpage; Firefox browser shows normal. I tried a variety of methods (Dreamweaver, Notepad ++, and I searched for a program file to remove

People who have used phpMyAdmin know that in phpMyAdmin, the use of file config.inc.php to save the user name and password, when the need to change the user or user password changes, you must modify the config.inc.php file, and then upload,

# ! /Usr/bin/ENV Python # -*-Coding: UTF-8 -*- # 2/10/16 Base trans. Wrote by srcdog on 20th, rjl, 2009 # LD elements in base 2, 10, 16. Import OS, sys # global definition # base = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C,

I forgot when I got it and never used it. For some reason, it was never released. After all, it was not original. Now someone posted it, and I also posted it. Program Code Print_r (" + ------------------------------------------------------

Public static string bin2hex (string binstr) {int deci = integer. valueof (binstr, 2); Return integer. tohexstring (deci);} public static string hex2bin (string hexstr) {int deci = integer. valueof (hexstr, 16); Return integer. tobinarystring (deci )

I. general ASCII code table Schematic ASCII code comparison tableTake character A as an example.Dec indicates decimal, such as 65Hx indicates hexadecimal, such as 41Oct indicates octal, for example, 101Char indicates the display character, such

In my impression, it is a common problem to convert into one another, so in Python, the following code should be accepted as util. This is a search from the Internet also can also be a Python binary conversion, verified can be used. The

$config = Array ( "Config" = "d:/phpserver/lighttpd/openssl.cnf", ' Config ' = ' d:/phpstudy/lighttpd/openssl.cnf ', ' Private_key_bits ' = 1024x768,//Size of key. ' Private_key_type ' = Openssl_keytype_rsa ); $res = Openssl_pkey_new ();$res =

Is used to output Chinese characters in GD. When the content to be output contains Spanish characters, confusion may occur. Later, I found the modified code and solved the problem. "> First, this is a UNICODE to UTF-8 encoding conversion function,

People who have used phpMyAdmin know that in phpMyAdmin, the file config. inc. php saves the user name and password. you must modify the config. inc. php files, and then upload them again, which is especially inconvenient. More often, you can use

This article mainly introduces how to implement the escape and unescape function code in PHP. This article provides two implementation versions. if you need it, you can refer to this class for reference. why? PHP uses JSON to pass GBK characters,

Ascii code. PHPcode & lt ;? Php *** ASCII to hexadecimal and hexadecimal to ASCII * non-profit organizations or individuals may feel free to reprint them, for commercial purposes, please obtain the author's consent ** convert ASCII to hexadecimal

PHP Basics description ASCII code table and character conversion, discuss the ASCII code table chart and character conversion to decimal, octal, hexadecimal, and HTML methods I. general ASCII code table Schematic ASCII code comparison tableTake