PHP

The code is as follows Copy Code /*socket send and receive data@host (string) socket server IP@post (int) port@str (string) the data to send@back 1|0 socket end has data return Return true|false| server-side Data */ Function

PHP read the file , Fread is used to read the contents of the file opened with fopen, let's take a look at the fread and gets instance tutorial.I apologize simply by taking the point of actually getting to your profile file. In this lesson we will

Definitions and usageThe Setcookie () function function sends an HTTP cookie to a client.。The name cookie is automatically assigned to a variable with the same name. For example, if a cookie is sent to the name "user", a variable is automatically

The revolution has not yet won ~ Let's go on. Need to add to the above: to create a database before you can import Oh!To differentiate and facilitate explanations, I name the database list, name the datasheet addr_list, or write out the complete SQL

The handbook says:Chapter 24. Safe ModeDirectoryFunctions that are restricted or masked by Safe modeThe PHP security model is designed to attempt to resolve shared server (Shared-server) security issues. In structure, it is unreasonable to try to

Connecting to a database$link _id = mysql_connect ("localhost", "root", "") or Die ("Connection failed");if ($link _id){mysql_select_db ("My_test");if (!$_get[id]){ $result =mysql_query ("SELECT * from UserInfo");echo " number User name Sex Age

Often heard the team said: "This version of the expansion is really hard to find, in the local operation of the normal code, on the line after the run exception ..." Most of these problems are due to system differences, extended deletions, and

Setcookie () syntaxSetcookie (PHP 3, PHP 4, PHP 5)Setcookie -- send a cookieNote: bool setcookie (string name [, string value [, int expire [, string path [, string domain [, bool secure])ExampleWrite cookie The code is as follows:Copy code $

Array_reverse(PHP 4 and PHP 5)Array_reverse-returns an array whose content order is reversed.DescriptionArray array_reverse (array $ array [, Boolean $ preserve_keys = false])Use a command to input an array and return a new array to reverse the

Filemtime(PHP 4 and PHP 5)Filemtime-get file modification timeDescriptionInternational filemtime (string $ file name)When this function is returned, the data block file is written, which is the content file changed at that time.ParametersFile

Is_executable(PHP 4 and PHP 5)Is_executable-tell whether the file name is executableDescriptionBoolean is_executable (string $ file name)Indicates whether filename is an executable file.ParametersFile nameFile path.Return valueReturns TRUE if the

Copy(PHP 4 and PHP 5)Copy-Copy an objectDescriptionBoolean copy (string $ Source, string $ dest [, resource $ background])Make the file a copy source dest.If you want to move the file, use the rename () function.ParametersSourcePath source

I have never paid much attention to it before. I have heard from my colleagues today and can check it out immediately. It is very powerful.Php configuration functions are several ini _ * functions, mainly for configuration file operations. In fact,

The code is as follows:Copy code Class dispatcher {Private $ config;Public static $ o;Function _ construct (){Echo 'SS '; }Public static function getinstance (){If (! Self: $ o ){Self: $ o = new dispatcher ();  }Self: $ o; }}New dispatcher ();

The code is as follows:Copy code $ Action = trim ($ _ get ['action']);If ($ action = "sub "){ $ Str = $ _ post ['dir'];// If (! Preg_match ("/^ [". chr (0xa1 ). "-". chr (0xff ). "A-Za-z0-9 _] + $/", $ str) // gb2312 regular expression of Chinese

Local time functions1. string date (string format, inieger times ***** p)This function returns a time string controlled by string format.For example: The code is as follows:Copy code Print (date ("y, m, d"); // output current, year, month, and

1. Get the addressThe main function of this function is to use a regular expression to match the image address in the page source code. The regular expression used here is: The code is as follows:Copy code //iU The homepage obtains the html

Empty is used to determine whether the variable value is non-null or non-zero. Corresponding empty definitions include: "" (empty string), 0, "0", NULL, FALSE, array (), and $ var (declared only but not assigned values ). That is to say, when the

Simplest practice The code is as follows:Copy code Function getRealIpAddr (){If (! Emptyempty ($ _ SERVER ['http _ CLIENT_IP '])  {$ Ip = $ _ SERVER ['http _ CLIENT_IP '];  }Elseif (! Emptyempty ($ _ SERVER ['http _ X_FORWARDED_FOR '])// To