php coding specifications and recommendations # # # Encoding Specification-PHP code files must start with the ```Not ending```-PHP code files must be encoded with UTF-8 without BOM.```Example sublime, setting increased, "show_encoding": True```-the
What is the difference between single and double quotes in PHP?
1. As can be seen, the double-quote variable is parsed and output, and the single-quote variable is not resolved.
2. The resolution of single quotation marks is faster than double
Copyright belongs to the original all ..... .....
Go PHP Coding Specification
In a more detailed explanation of the program in the preparation of the issues to be noted.
But the norm is just a habit, not a compulsion, and you can totally disobey
Summary of some traps and tips in Python, and summary of python traps
Python is a widely used and powerful language that allows us to go deep into this language and learn some control statement skills, standard library tips, and some common
One, Bash command processing of 12 steps; 1. Divide the command line into tokens delimited by the fixed element character set; SPACE, TAB, NEWLINE, ; , (, ),, |,& Token types include words, keywords, I/o redirects, and semicolons.2. Check the first
PSR Specification
PSR Specification
Introduction: PSR is a shorthand for PHP standard recommendations, PHP specifications developed by the PHP FIG organization, is the practice of PHP development standards. The purpose of these specifications is to:
"Student grades A90 B80 C70 D60 E60 According to student number and student grade"Select field list into variable list from table the Where condition deposits the values from the field list in a record into the variable list, the variables in the
The algorithm refers to the accurate and complete description of the solution to the problem. is a set of rules that rigorously define the order of operations, and each rule is valid and unambiguous, without ambiguity, and the rule will be
1, control structure 1.1 piece branch 1.2 circulation 1.2.1 while loop 1.2.2 for loop 2, exception handling 2.1 Catch Exception 2.2 Produce exception 2.3 Custom exception 3, custom function 3.1 name and Docstrings 3.2 parameter and parameter split 3.
What is the difference between single and double quotes in PHP?
1. As can be seen, the double-quote variable is parsed and output, and the single-quote variable is not resolved.
2. The resolution of single quotation marks is faster than double
In writing code, a good coding standard, for us can play a lot of the effect of the intention. Like what:
1, improve the efficiency of our coding. Uniform code to facilitate our copy and paste Oh!
2, improve the readability of the code.
3, show our
====================PSR-0 (Automatic loading specification)=======================The PSR-0 (autoloading standard) class auto-load specification, which is now obsolete (Deprecated), will be replaced by PSR-4.1. A fully qualified namespace and class
1. 12 steps of bash command processing;
1. Divide command lines into tokens separated by fixed metacharacters;
SPACE, TAB, NEWLINE, ; , (, ),, |,&
The types of tokens include words, keywords, I/O redirections, and semicolons.2. Check the first mark
Reprinted: http://blog.chinaunix.net/uid-11572501-id-2868683.html
1. tcp syn Denial of Service AttackGenerally, the establishment of a TCP connection requires three handshakes, namely: 1. the initiator sends a tcp syn packet to the target computer;
(Part 1)--------------------------------------4 languages--------------------------------------This section describes Lua's lexical, syntax, and semantics.-------------------4.1 lexical conventions-------------------The identifier in Lua can be a
4.4 From statement to programAfter understanding the various expressions and statements, it is equivalent to mastering the words and sentences to be used in writing, but only words and sentences can not constitute a meaningful article. To complete
Summary, ruby program consists of one or more Ruby source files, the source file consists of modules, the module has control structure, class objects, methods, and expressions and other elements, following this idea to sum up Ruby's program
#单行函数细分1. Character functions2. Mathematical functions3. Date function4. Other functions5. Process Control function#单行函数-Character functions#一, character functions#1. Length gets the bytes of the parameterSELECT LENGTH (' John ');SELECT LENGTH ('
Declare is the PHP process control structure. directive currently supports two commands. The use of ticks must be used with the register_tick_function function. See the following small example.
Declare is the PHP process control structure. directive
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.