php rules engine

PHP Method for recording the website footprint of search engine spider access, search engine footprint This example describes how to record the website footprint of a search engine spider in PHP. Share it with you for your reference. The specific analysis is as follows: The

Copy the Code code as follows: /*Search Google "Shenzhen photography studio", Lan Horizon LANSJ ranking position; 2009-10-11Lost63.com OriginalSearch in the first 30 pages*/$page = 30; Number of pages$domain = "lansj.com"; Domain name$domain = "lost63.com";for ($n =0; $n $url = ' http://www.google.cn/search?hl=zh-CNnewwindow=1q=%E6%B7%B1%E5%9C%B3%E6%91%84%E5%BD%B1%E5%B7%A5 %e4%bd%9c%e5%ae%a4start= '. $n. ' 0sa=n ';$url = ' http://www.google.cn/search?hl=zh-CNlr=newwindow=1q=%E8%BF%B7%E5%A4%

The simplest template engine: PHP native template engine ... Er ~ Adding a Cache mechanism is perfect! I don't know if the performance of the regular template engine is higher than that of the regular template engine? $ A = array ( 'A', 'B',

user input. Defense in depth is not just a good idea, it can make sure you don't get into serious trouble. Now that the basic rules have been discussed, let's look at the first threat: SQL injection attacks. Preventing SQL injection attacks In a SQL injection attack, a user adds information to a database query by manipulating the form or get query string. For example, suppose you have a simple login database. Each record in this database has a userna

Copy the Code code as follows: $a = Array (' A ', ' B ', ' C ');Require ' template/demo.php ';//reference template?> Template file: Copy the Code code as follows: Template testing Copy the Code code as follows: Key values: This is the simplest template engine for the simple organic compound PHP nat

like? Listing 4. Make code easy to protect obfuscated code$input = (isset ($_post[' username '))? $_post[' username ']: '); unobfuscated Code$input = "; if (isset ($_post[' username ')) {$input = $_post[' username ');}else{$input = ";}?> In the second, clearer code snippet, it is easy to see that $input is flawed and needs to be cleaned before it can be handled safely. Rule 4: "Defense in Depth" is a new magic weapon This tutorial will use an example to illustrate how to protect an online f

follows: function Is_spider () {$robot = 0;$USER _agent = strtolower ($_server[' http_user_agent ');if (Strpos ($USER _agent, "Bot")) $robot = 1;if (Strpos ($USER _agent, "spider")) $robot = 1;if (Strpos ($USER _agent, "slurp")) $robot = 1;if (Strpos ($USER _agent, "Mediapartners-google")) $robot = 1;if (Strpos ($USER _agent, "Fast-webcrawler")) $robot = 1;if (Strpos ($USER _agent, "AltaVista")) $robot = 1;if (Strpos ($USER _agent, "Ia_archiver")) $robot = 1;if ($robot = = 1) {Do something}Retu

);}}function Get_naps_bot () {$useragent = Strtolower ($_server[' http_user_agent ');if (Strpos ($useragent, ' Googlebot ')!== false) {Return ' Googlebot ';}if (Strpos ($useragent, ' MSNBot ')!== false) {Return ' MSNBot ';}if (Strpos ($useragent, ' slurp ')!== false) {Return ' Yahoobot ';}if (Strpos ($useragent, ' Baiduspider ')!== false) {Return ' Baiduspider ';}if (Strpos ($useragent, ' Sohu-search ')!== false) {Return ' Sohubot ';}if (Strpos ($useragent, ' Lycos ')!== false) {Return ' Lycos '

The simplest template engine code of the PHP native template engine is as follows: $ A = array ( 'A', 'B', 'C' ); Require 'Template/demo. php'; // reference the template ?> Template File: The code is as follows: Template test The code is as follows: Key value: //

50 rules improve PHP development efficiency and skills. 0. replace double quotation marks with single quotes to include strings. this will be faster. Because PHP will search for variables in strings enclosed by double quotation marks, but not in single quotation marks. note: only echo can be 0. use single quotation marks instead of double quotation marks to inclu

forms while taking the necessary steps in processing the form's PHP code. Also, even if you use a PHP regex to ensure that a get variable is entirely numeric, you can still take steps to ensure that the SQL query uses escaped user input. Defense in depth is not just a good idea, it can make sure you don't get into serious trouble. Now that the basic rules have b

Some times you may need to bulk convert the MySQL table engine, as follows for PHP operations /** * Bulk conversion MySQL table engine */ Error_reporting (E_all); Database Connection Configuration $host = ' localhost '; $username = ' root '; $passwd = '; $database = ' Test '; To convert the library name configuration, the multi-Library transformation adds configu

PHP template engine smarty. PHP template engine smarty detailed introduction this article mainly introduces the PHP template engine smarty detailed introduction, this article explains what is smarty and smarty advantages, what is

This article mainly introduces the PHP code example for updating pseudo-static rules in WordPress. For details about how to use the flush_rewrite_rules () function, refer to flush_rewrite_rules () the function is used to delete and rewrite pseudo-static rules based on the existing conditions, that is, refresh the pseudo-static

... Well, adding a caching mechanism is perfect! I do not know that this is more than the regular template engine performance will be higher? $a = Array ( ' A ', ' B ', ' C ' ); Require ' template/demo.php ';//reference template ?> Copy Code Template file: Template testing

Four rules for ensuring the security of PHP applications (1 ). Rule 1: never trust external data or enter information about Web application security. The first thing that must be realized is that you should not trust external data. External data (outsidedata) includes Rule 1: never trust external data or input The first thing that must be realized about Web application security is that external data should

Here we will provide a detailed explanation of PHP syntax rules, hoping to help develop php programming at a high level. Here we will provide a detailed explanation of PHP syntax rules, hoping to help develop php programming at a

What is the use of PHP variables? PHP variables are "containers" for storing information, PHP variables can be assigned values or expressions, so let's take a look at the naming conventions for PHP variables and the use of PHP variables. Let's look at an example: Similar t

Reference and counting of php variables internal reference and counting of rule variables Inside the engine, a PHP variable is saved in the "zval" structure, which contains the type and value information of the variable. this is stored in the internal storage of the variable in the previous article: the value and type have already been introduced. This structure

('filename', 'file', 'allowempty '=> true, 'types' => 'zip, rar, xls, pdf, ppt ', 'toolarge' => 'image Do not exceed KB), array ('URL', 'file', // is defined as 'allowempty '=> true, 'types' => 'jpg, png, gif, doc, docx, pdf, xls, xlsx, zip, rar, ppt, pptx, // type of the uploaded file 'maxsize' => 1024*1024*10, // upload size limit. Note that it is not php. the upload file size in ini is 'toolarge' => 'the file size is greater than 10 MB. Upload fai