Php language summary
Php language summary: Basic syntax type constant operator flow control function class and object namespace Super global variable garbage collection mechanism
1. Basic syntax
* Php tag
Echo "Hello world ";
//... More
How can I determine whether the browser is a 360 browser php code or js code? Baidu won't be able to do this for several times,
For the 360 browser version 5.0
Reply to discussion (solution)
Capture the package and check what the browser features 3
Make defines a number of default variables, such as common commands or command options, what CC, Cflags, and so on.${make} is the name (or path) of the preset make command.Make-p can view the current values of all predefined variables.———————————————
--ConstantsThe definition of a constant uses the Define () function, two ways to get a constant, one is to use the constant name directly, and the second is to use the constant () function. Determines whether a constant has been defined using the
Used to be php5.2, but recently found a slightly lower version of the switch to php5.3 (I use the Phpstudy combo package), but after the switch, the previous use of php5.2 written program will appear notice hint, although does not affect the correct
A problem occurs. I want to include resource A in debug mode and resource B in release mode.
So I wrote in the RC file:
# Ifdef _ debug
..........
# Else
.......... B
# Endif found after compilation
_ Debug is not defined.
Cause:
The basic use of the MIT scheme is to install and start up the MIT scheme system is properly installed under Windows, and the program menu will have an MIT scheme directory that includes: Documentation: Open HTML scheme in browser format
These two days of whim want to use PHP to write a daily project encryption and decryption function, after an effort to simply encapsulate a PHP code encryption and decryption of the class, some ideas are also from the network, the initial test is OK,
Preface: About 2006, study a period of time of PHP, and then did a download site, and later because of the postgraduate stage with Java, EE-related, so PHP was stranded, PHP these years have undergone a great change, the biggest change is to support
Recognize and use PHP Super global variables
The super global variable, also known as a predefined variable, is a self-contained variable in the PHP system, which makes your programming easier and faster. The types of this include:$GLOBALSContains
PHP Judge Browser, Judge language code sharing
This article mainly for you to share the PHP judgment browser, judge the language of the code, is very simple, mainly on the server predefined variable $_server analysis, recommended to everyone here.
PHP based on Forms Password authentication and HTTP authentication usage instances, form instances
The examples in this article describe the use of PHP based on Forms Password authentication and HTTP authentication. Share to everyone for your
$ _ FILE: $ _ FILE () whether the format is system function or pre-defined variable. I think the php Manual is a pre-defined variable, but some course lecturers talk about system functions, who is right? Shared to: $ _ FILE
$ _ FILE () is this
There is no need to display declaration variables in PHP, and variable declarations can be performed concurrently with assignments. Good programming habits are: All variables should be declared before use, preferably with comments.
one, the
1. Tools for writing Programs:The indent command automatically adjusts the indentation style of the C code, and the individual prefers INDENT-KR2. Compile the C language program:1.GCC Compiler:GCC is an ANSI C-compatible compiler, and the C + +
1. The php script can be placed anywhere in the document.The PHP script begins with .In PHP, all user-defined functions, classes, and keywords (such as if, else, Echo, and so on) are not case sensitive. All variables are case-sensitive.2.PHP
[Fengma family _ php] basic php knowledge, _ basic php knowledgeReview
What is the development history of php and php?
Configure php in apache
Configure mysql in php
How apache works
How the web works (similar to 4)
Domain name-based VM
1. Do not copy variables at will.
Sometimes, to make PHP code more clean, some new PHP users (including me) will copy the predefined variables to a variable with a shorter name, in fact, the result is a doubling of the memory consumption, which
PHP is an explanatory language and a common language in web development. For web programming, it is recommended that you refer to W3cschool's online API manual when learning.PHP and C language and similar, people who understand C can write a simple
PHP pre-defined variables (2)4. Session variable ($ _ SESSION): the data generated by the php session function is stored in the $ _ SESSION variable in the form of a super global variable.1. Session IntroductionSESSION is also called a SESSION
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.