PHP

Phpaddslashes and other methods for clearing spaces are insecure. The space clearing method is insecure, in part because there are many spaces in the characters. for example, the problem with addslashes is that hackers can use 0xbf27 to replace

Very useful two PHP functions: serialize () and unserialize (). Today, I am doing something about the PING service, because I don't want to put the ping service address into the database, that's not good. The ping service is not a very inefficient

PHP solution for combined algorithms. Question: composite algorithm: there is an array a with N elements. now we need to find the number of all combinations containing any element. Answer: Let's take a look at the rule first. suppose this array is

Urldecodeproblem solution. After testing, the python urllib library and js encodeURIComponent will not be replaced. The space encode is also replaced with % 20. Python provides urllib. quote_plus and urlib. unquote_plus to process and test the

Use PHP to convert the lower-case amount to the upper-case amount (accurate to points ). The code for copying the code is as follows: *** the function for converting the numeric amount to the Chinese capital amount * StringInt $ num is the lowercase

Php reads mysql garbled characters and shares the principles of using setnamesXXX. Let's talk about the character set of MySQL. In Windows, you can copy the code by modifying the PHP code in my. ini as follows: [mysql] default character set of the

Precautions for using Smarty in php and several methods for accessing variables. $ TplnewSmarty (); create a new smarty object. I am using Smarty-3.1.6 version 1. set the path of the smarty template $ tpl-setTemplateDir (); by default, templates2.

PHPExcel implements the code for reading Excel files. Knowledge points involved: php reads excel files cyclically. php converts ascii code to the characters, converts the characters to decimal numbers. php reads the excel date format and converts

Code for date addition and subtraction in php. 1. obtain the date timestamp through strtotime (). 2. obtain the timestamp N days ago, use the "current timestamp-N days in seconds N days ago timestamp" 3. use da for the timestamp N days ago. 1. first

Use the PHP function memory_get_usage to get the PHP memory consumption. 1. function prototype intmemory_get_usage ([bool $ real_usagefalse]) 2. compatible with PHP44.3.2 and PHP5 3. basic usage and instance 1, get the current memory consumption

Share Common openPNE methods. Copy the code as follows :? Phpinclude_partial (sidemenu, array (formasdfgasgsad ));? This statement contains _ sidemenu. php and transmits a series of parameters to the page. The code is as follows: 'Asdfgasgsad ')

How to configure php security configuration to make it safer. In addition, the vigorous SQLInjection is also widely used in PHP, so to ensure security, PHP code writing is one aspect. the configuration of PHP is even more critical. In addition, the

Phpurlencode () and urldecode () function Character Encoding principles. The principle is to convert Chinese characters to hexadecimal notation and combine strings according to certain rules to implement character encoding and decoding, to ensure

Solution to empty strings for array elements obtained by Linuxfgetcsv. But on the server, many use Linux server, the source program uses UTF-8, so it is easy to produce character encoding problems. if you just transcode the CSV file as a UTF-8, so

Array_key_exists () of the php array function sequence-query whether the array key name exists. Array_key_exists () definition and usage the array_key_exists () function determines whether a specified key exists in an array. if the key exists, true

Each () of the php array function sequence-obtains the key name and key value of the element pointed to by the current internal pointer of the array, and moves the pointer to the next position. The each () definition and usage each () function

Next () of the php array function sequence-move the internal pointer of the array to the next element and return the value of this element. The next () function moves the pointer to the current element to the next element and returns the value of

Use PHPRPC to log on to the 12th page with Ajax Security. Unlike other ajax frameworks, PHPRPC follows the principle of "only do one thing and do it well. It is only responsible for data transmission, and will be the best transmission! Unlike other

Prev () of the php array function sequence-move the internal pointer of the array to the position of the previous element and return the value of this element. Prev () definition and usage the prev () function moves the pointer to the current

A complete list of php operators. Simple things, in practical use, interesting arithmetic operator name result $ a + $ B addition $ a and $ B and $ a-$ B subtraction $ a and $ B difference $ a * $ B multiplication seems simple, in practical use, it