bin2hex

In the normal development process, there is the problem of SQL injection in the code, presumably we all know and understand, but also understand the common solution. But recently there's another way to prevent SQL injection: $sql = sprintf("SELECT *

I opened a file (binary), and then used the Bin2Hex function, and changed it into a 16-character string, and modified one of the values in a particular location, and now the problem is, I want to save back, found to be an ASCII file, how should you

Description of the decimal system Conversion Function, decimalsystem 1. Description of the decimal system Conversion Function1. Decimal to binary decbin () function, as shown in the following example:Echo decbin (12); // output 1100Echo decbin (26);

This algorithm encrypts the data, stores it, and restores it using the previously encrypted secret key when it is needed.In addition to this, there is the AES algorithm can be very good data encryption, in the transmission process is not easy to

Description of the decimalsystem conversion function, decimalsystem. Description of the decimalsystem conversion function, decimalsystem 1, decimalsystem conversion function description 1, decimalsystem to binary decbin () function, the following

Why are some webpages garbled? Please refer to these two pages for a bit dizzy: www.qgren.comqigonggongfa15_30.shtml summary garbled. Check this page again: www.qgren.comqigonggongfa15_28.shtml summary is normal. On the website, some pages are

First MD5 experiment, the result is the same, but use Blowfish experiment, how to do also can not succeed The call is as follows: %s", Strtoupper (Bin2Hex ($dtext))); } Mcrypt_module_close ($cipher); C + + is the case: Md5_ctx MD5;

Blowfish encryption is implemented using PHP and C ++, but the results are different. First, the MD5 experiment has the same results, but the Blowfish experiment cannot be used. The call is as follows: % S", Strtoupper (bin2hex ($ dtext);}

PHP implements escape and unescape function code sharing in Javascript. PHP implementation of escape in Javascript and unescape function code sharing this article mainly introduces PHP implementation of escape and unescape function code sharing,

PHP function description: description of the decimal, binary, octal, and hexadecimal conversion functions. 1. description of the decimalsystem conversion function 1: The decimal to binary decbin () function. for example, echodecbin (12); 1100

　　With a simple understanding of the PHP data type in the previous article, we know the string type, this article will introduce the string functions commonly used in PHP.The string is a sequence of characters, such as "Hello world!".PHP String

Today, a friend asked me a question: Why SQL injection to add single quotation marks, this time I can not answer at the moment, blame himself to blame the theory is too vegetable, but go back to think carefully, think this problem is quite

This article analyzes the solution of PHP's failure to save pictures in MySQL database. Share to everyone for your reference. The specific analysis is as follows: Picture Save database is not a sensible way, we mostly save the pictures to the

One, decimal (decimal System) conversion function description1, decimal to Binary decbin () function, as follows example Echo Decbin (12); Output 1100 Echo Decbin (26); Output 11010 Decbin (PHP 3, PHP 4, PHP 5) Decbin--Decimal conversion to

This article describes how to save images to the mysql database in php, and analyzes in detail the problems encountered when saving images to the database in php and the corresponding solutions, I also summarized the related skills and provided some

The first part of the Chinese character encoding Study Series. the PHP function is a detailed description of the conversion functions for decimal, binary, octal, and hexadecimal conversion. it mainly describes the conversion methods for each

Php learns to delete string whitespace characters. You can use Trim (), LTrim (), RTrim () functions to remove whitespace from the string masthead or end: $trimmed = Trim (String[,charlist]), $trimmed = LTrim (String[,charlist]); trimmed = RTrim

Development of Smart home backend based on Laravel+swooleIn the previous article on how to gracefully use the swoole> I have probably talked about the usage of Laravel in conjunction with Swoole. Today, I am involved in the smart home project has

One, decimal system conversion function description1, decimal to Binary decbin () function, the following example Echo Decbin (12); Output 1100 Echo Decbin (26); Output 11010 Decbin (PHP 3, PHP 4, PHP 5) Decbin--decimal conversion into

Using JS to the URL in the Chinese characters to escape code. Click the link after the effect:Reference: http://127.0.0.1/shop/product_list.php?p_sort=PHP%u5F00%u53D1%u8D44%u6E90%u7F51It is obvious that using PHP's UrlDecode () or Base64_decode ()