bin2hex

Not long ago, I applied to join an open source organization, they asked me to write a feature to detect whether there is a Trojan script in the picture. In fact, I do not know what the beginning, but later on the Internet to check some information,

Using the IP2ADDR function to read the IP database files directly is the most efficient, and SQL query is the most efficient one, compared with the MySQL database to store the IP data. However, the IP database file QQWry.dat is GB2312 encoded. Now I

Javascript The most complete phpescape function function Phpescape ($STR) {Preg_match_all ("/[\x80-\xff].| [\x01-\x7f]+/", $str, $NEWSTR);$ar = $newstr [0];foreach ($ar as $k => $v) {if (Ord ($ar [$k]) >=127) {$tmpString =bin2hex (Iconv ("GBK", "ucs-

The PHP binary conversion function is as follows:Bindec ()-Binary conversion to decimalDecbin ()-Decimal converts to binaryDechex ()-Decimal conversion to hexadecimalDecoct ()-Decimal conversion to octalHexdec ()-16 Conversion to decimalOctdec

Php multi-base programming practices for detecting image Trojans. Not long ago, I applied to join an open-source organization. They asked me to write a function to check whether there was a Trojan script in the image. In fact, I didn't know anything

The article "IP address-& gt; geographic location conversion evaluation" mentions that using the ip2addr function to directly read IP database files is the most efficient. compared with using the MySQL database to store IP data, SQL queries are the

Analysis of 51 PHP functions that process strings. Including calculating the length of a string, splitting a string, and searching for a string. 1. AddSlashes: Adds a slash to the string. 2. bin2hex: binary to hexadecimal. 3. Chop: remove Including

Parse the escape function in php. Use js to encode the Chinese characters in the URL. Ahrefonclickwindow. open (product_list.php? P_sort + escape (); when the link is clicked, reference: http: Use js to encode the Chinese characters in the URL.The

PHP character functions 12th page. AddSlashes: Adds a slash to the string. Bin2hex: binary to hexadecimal. Chop: removes consecutive gaps. Chr: returns the character of the ordinal value. Chunk_split: splits a string into segments. Convert

PHP Data encryption has become more and more important in our lives, especially considering the large volume of transactions and transmitted data on the network. If you are interested in using security measures, you will be interested in learning a

PHP method for retrieving Image exif attributes & lt ;? Php *** function for retrieving image information ** a function for obtaining image information comprehensively ** & nbsp; @ access & nbsp; public * & nbsp; @ param & nbsp; string $ img Image

This article provides a detailed analysis of PHP Data Encryption. For more information, see This article provides a detailed analysis of PHP Data Encryption. For more information, see Data Encryption has become more and more important in our

Not long ago, I applied to join an open-source organization. They asked me to write a function to check whether there was a Trojan script in the image.In fact, I didn't know anything at first, but I checked some information on the Internet and found

Data Encryption has become more and more important in our lives, especially considering the large amount of data that has been traded and transmitted over the Internet. If you are interested in using security measures, you will be interested in

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 have summarized the related skills for some

This article provides a detailed analysis of the escape Function in php. For more information, see This article provides a detailed analysis of the escape Function in php. For more information, see Use js to encode the Chinese characters in the

An error occurred while saving the php image to the mysql database. It is not wise to save images to the database. we generally save images to the server and then save the image addresses to the database, in this way, it is not wise to read the

Php code for detecting image Trojans (multi-base programming) This article shares a piece of code for detecting image Trojans implemented by php. it can be used to detect hexadecimal-encoded Trojans. For more information, see.This php

This article mainly introduces the example of using OpenSSL to replace MCrypt in PHP7.1, this article gives you a very detailed introduction, the need for friends can refer to the following In PHP development, the use of MCrypt-related functions

A string formatted as 0XD4D9B2E2CAD4D2BBCFC2 needs to be converted to text, but only the Bin2Hex method is found in PHP-convert binary data into hexadecimal representation. The following is the implementation of Hex2bin:)/**//** * Returns a byte *