php shorthand if

First type: IF condition statementThe second type: three mesh operationThe third kind of:&&, | | Conditional statements made up ofThe first kind: IF do not say, this is the foundation, I believe most people will;The second kind: C=a>b?

Sometimes I learn a lot, a lot of small details are forgotten, such as simple expression,Three-dimensional expression?:;$aa an OR $BB expressionWait a minute!Write some simple expressions, Memo!php && | | Abbreviation CONDITION statementLook at the

PHPclassa{ Public functionNews$news){ $articles=Array(); foreach($news as $key=$value) { List( $articles[$key[' Title '],$articles[$key[' Description '],$articles[$key[' Url '],$articles[$key[' Picurl '] )

Su:swith User switch users, switch to root userCat:concatenate SeriesUname:unix Name Name SystemDf:disk free HDDDu:disk Usage HDD UsageChown:change owner Change OwnersChgrp:change Group change user groupsPs:process Status Process stateTar:tape

the big version of PHP is divided into three main branches: PHP4/PHP5/PHP6Among them, PHP4 because too old, the poor support of OO has been basically eliminated, please disregard PHP4.PHP6 because there is no application on the production line, but

Su:swith User switch users, switch to root userCat:concatenate SeriesUname:unix Name Name SystemDf:disk free HDDDu:disk Usage HDD UsageChown:change owner Change OwnersChgrp:change Group change user groupsPs:process Status Process stateTar:tape

As of Now (2014.2), the latest stable version of PHP is PHP5.5, but almost half of the users are still using PHP5.2, which is already out of maintenance, and half of the remaining users are using PHP5.3.Because PHP that "set hundred of the length"

As of Now (2015.1), the latest stable version of PHP is PHP5.5, but almost half of the users are still using PHP5.2, which is already out of maintenance, and half of the remaining users are using PHP5.3.Because PHP that "set hundred of the length"

What is an API?An application interface (application programming interface abbreviation) that defines the classes, methods, functions, variables, and so on everything in your application that needs to be called in order to complete a particular task.

Installation Environment: Centos 6.5 PHP 5.3.27 Here PHP is installed, the installation path is: /usr/local/php/ To download the installation file: Http://pan.baidu.com/s/1sjjTmbz Get file: mongo-php-driver.tar.gz Unpack the files and go to the