Summary and sharing of common data types in PHP

PHP Data TypePHP supports eight primitive types ).Four scalar types:String (string)Integer)Float (float, also double)Boolean (boolean)Two composite types:Array)Object)Two special types:Resource)NULL)View variable typesThe gettype () function allows

Php retrieves detailed code for keywords from Baidu search to enter the website

Share a php code for getting keywords from Baidu search to enter the website. For more information, see:Code:Copy codeThe Code is as follows:Function search_word_from (){$ Referer = isset ($ _ SERVER ['HTTP _ referer'])? $ _ SERVER ['HTTP _ referer']

Use phpexcel to import excel into the database and export the database to excel.

apm

Copy codeThe Code is as follows:/** Author zhy* Date 2012 06 12* For excel*/Date_default_timezone_set ("PRC ");Error_reporting (E_ALL );Error_reporting (0 );Ini_set ('display _ errors ', TRUE );Ini_set ('display _ startup_errors ', TRUE );Define

Php uses memcache to store the session method summary

Set the session to use memcache for storage Method I: global settings in php. iniSession. save_handler = memcacheSession. save_path = "tcp: // FIG: 11211" Method II:. htaccess under a directoryPhp_value session. save_handler "memcache"Php_value

PHP object-oriented Journey: static variables and Methods

The static keyword declares that an attribute or method is related to a class, rather than a specific instance of the class. Therefore, such attributes or methods are also called "class attributes" or "class methods ". If the access control

How can we quickly determine the depth of the php multi-dimensional array?

For example, there is a multi-dimensional array: array( array( array(1,3,4), array( array( 1,2,3 ) ) ), array( array(1,2),

Usage of php9 super global variables (2)

Let's talk about $ _ GET () and $ _ POST () today (). In fact, it is easy to understand. It can be seen from the surface that it is to obtain the data of the post and get forms. In fact, this is also the case. If you want to be professional, The $

Php Calender (calendar) Code

The Code is as follows: = 2038 = ('y'} ( 12 = ('M' =-1 =-1 ( 12 = 1 = last year last month Back to today next month next year {}{} months = ('Y-m-J' = ('J ', (0, 0, 0, 0, = 1 = ''( '. = (' & nbsp; ',-1 (= ';} = ''. = " " (=

Run the SVN command in PHP to display the code of the file update record of a user.

Copy codeThe Code is as follows:$ User = trim ($ _ GET ['user']);$ D = $ _ GET ['date'];If (! $ D ){$ D = date ('ymmd', time ()-86400*14 );}If (empty ($ user )){Echo "Example: svn_log.php? User = wang & date = 20130118 ";Exit;} $ Cmd = '/usr/bin/svn

Install php5.5.7 php-fpm and xcache in the source code and the xcache management background.

I. Preparations before installation Cd/usr/local/src wget http://cn2.php.net/distributions/php-5.4.7.tar.gz yum -y install gcc automake autoconf libtool make yum -y install gcc gcc-c++ glibc yum -y install libmcrypt-devel mhash-devel

Php Calender (calendar) code sharing

The Code is as follows: Copy codeThe Code is as follows:/**** My Calendar* Date_default_timezone_set date mktime* @ Param int $ year* @ Param int $ month* @ Param string $ timezone* @ Author fc_lamp*/Function myCalender ($ year = '', $ month ='', $

PHP: retain the last decimal point, and do not round

$ Total = 1225.49.5;$ Total = floor ($ total * 0.95) * 10)/10; $ Total = sprintf ('%. 1f', (float) $ total ); Echo $ total; ?> Output result: 1225.4 Several Methods for retaining the last decimal point in php $ Total = number_format (2

Important PHP object-oriented knowledge points (2)

1. _ toString: when an object is printed, if this method is defined by this class, the return value of this method is printed; otherwise, the result is printed Based on the default PHP behavior. This method is similar to toString () in Java (). Copy

Preferred tool for enterprise-level website construction

fast and stable system architecture developed using PHP + MySQL, clear and intuitive directory structure The modular development mode ensures fast and stable system powerful secondary development capabilities native PHP writing and modular

Data Table operations in ThinkPHP

Read data $ M = new Model ('user '); $ M = M ('user '); Select $ M-> select (); // obtain all data and return it as an array Find $ M-> find ($ id); // obtain a single data record GetField (field name) // obtain a specific field value $ Arr = $ m->

Thinkphp returns the Json Data Format

ThinkphpReturnJsonData format // Write the class method using $ this-> ajaxReturn () to return the public function index () {$ setting = M ('setting '); $ map ['lang '] = array ('in', '1, 0'); $ data = $ setting-> where ($ map)-> field ('name, data

PHP screen capture function for screen snapshot code sharing

Copy codeThe Code is as follows:* Screen snapshot$ Im = imagegrabscreen ();Imagepng ($ im, "myscreenshot.png "); * Capture a window (IE is used as an example) $ Browser = new COM ("InternetExplorer. Application ");$ Handle = $ browser-> HWND;$

Example of a PHP digital verification code

It is very convenient to implement the verification code in php. The key point is to master the usage of the php gd library and session. Looking at the online php verification code generation example, there is no combination of php gd library and

Example of php curl simulating post data submission

Copy codeThe Code is as follows:Header ("Content-type: text/html; charset = utf8 ");/** Submit a request* @ Param $ header array set the array ("Host: devzc.com") for the domain name and other headers to be configured ");* @ Param $ data string the

MySQL manual version 5.0.20-MySQL optimization (2) (1) (3)

The connection type is the same as that of ALL. The difference is that it only scans the index tree. It is usually faster than ALL because the index file is usually smaller than the data file. MySQL uses this connection type when the queried field

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