Wednesday, 3 October 2012

Basic Ruby Coding

Php&mysql usage in IT field

Php&mysql  is  world  famous  server  side  scripting  language  and  database. Php  stands  for    Hypertext  preprocessor. Most  of  the  biggest  software  companies  are  using  php&mysql  because of their  open  source  facility. If  we  would  like  to  use  php&mysql,  there  are  no  needs  to invest money.  So  that  most  of  the  individual  business  companies,  social  websites  are  chosen php&mysql  to  get  avoid  their  investment  in  IT  fields.
Php&mysql  is  also  given  profit  nearly  commercial  programming  languages  like  Java,  Oracle, .Net,   Sql,  etc.  php&mysql  is  taken  equal  challenges  with  commercial  programming languages. Individual business  developers,  social  application  developers  have  welcomed  php&mysql  for their  own  use.  Php&mysql  has  their  open source  software  and  their  instruction  also  on  the internet  to  be  got instruction  about  php&mysql.
Php&mysql  usage  in  IT  companies  
Php&mysql  is  weekly  offerings  for  IT  companies  as  it  is  an  open  source.  Web  site companies,  web  development companies,  social  networking  companies  are  using  php&mysql because  of  is most  user-friendly  to  use.  Php  has  lots  of  templates  for  user  convenience.  There is  php  software available  on  their  websites  and  their  usage  guide  also  available  there.
 IT  companies  are  providing  good  feedback  for  their  user-friendly,  open  source  and  also  there  are  no  limitations  to  use  Mysql  database.  Php  is  one  of  beneficial  server  side  scripting  language  for one  who  has  idea  to  build  an  individual  IT  company  because  there  shouldn’t  be  any  loses.  Php provides  template  for  convenience  to  user.  There  are  online  guide  to  get  help  about  php  script and  development.  For  further  ideas  get  look  on  their  official  websites.
 Php&mysql  usage  in  social  websites
 Social  websites  are  mostly  using  php  and  mysql  because  of  there  are  no  investment  to  start  and manage  their  websides.  Because  of  php  is  open  source  scripting  language,  all  of  start  to  develop their  ideas  especially  one  who  haven’t  investment  to  build  an  organization  in  the  IT  fields.  
 Social  websites are  developed  their  ideas  in  php  because  it  support  many databases  like  Mysql, Informix,  Oracle,  Sybase,  Solid,  PostgreSQL,  Generic ODBC etc.  Php  is  free  to  download  and  use also  has  policy  to  access  anywhere  and  anytime.  Php  is  the  best  one  for  social  networking  websites  because  it  contains  plug-in  facility.
Advantages  of  Php&mysql
 Php  is  competent  to  generate  web  pages.  Php  and  Mysql  both  are  open  source  so  it  is  free  for license  required.  Its  source  code  free  to  anyone.  You  can  access  source  code  without  copyright problem.  You  can  modify  easily  its  source  code.  You  can  use  it,  modify  it,  change  it  and distribute  it  with  too  low  restriction.
Php  is  one  of  the  easiest  ways  to  save  your  initial  investments.  Php  is  comfortable  with  all operating  system  so  it  is  called  cross-platform.  Mysql   is  best  example  of  RDBMS.  Php  is available  with  documentation  in  all  languages.   We  can  develop  application  quickly  in  php.  Php  is  loosely  typed  scripting  languages.  Php  runs  on  different  operating  system.
Disadvantages  of  Php&Mysql
Php  execute  slowly  compare  with  other  languages.  Programming  error  easily  occurred  because of it  is  loosely  typed  language.  There  is  Security  flaws  in  php  because  of  open  source.  Php is  not good  to  develop  desktop  application.
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$ irb
irb(main):001:0> puts "Hello, World"
Hello, World
=> nil
irb(main):002:0> 1+2
=> 3

puts "Hello World!"
# Everything, including a literal, is an object, so this works:
-199.abs                                         # 199
"ice is nice".length                             # 11
"ruby is cool.".index("u")                       # 1
"Nice Day Isn't It?".downcase.split("").uniq.sort.join  # " '?acdeinsty" 
puts "What's your favorite one?"
number = gets.chomp
output_number = number.to_i + 1
puts output_number.to_s + ' is a bigger number.'

Ruby is a dynamic, reflective, general-purpose object-oriented programming language that combines syntax inspired by Perl with Smalltalk-like features. It was also influenced by Eiffel and Lisp. Ruby was first designed and developed in the mid-1990s by Yukihiro "Matz" Matsumoto in Japan. Ruby supports multiple programming paradigms, including functional, object oriented, imperative and reflective. It also has a dynamic type system and automatic memory management; it is therefore similar in varying respects to Smalltalk, Python, Perl, Lisp, Dylan, Pike, and CLU. The standard 1.8.7 implementation is written in C, as a single-pass interpreted language. The language specifications for Ruby were developed by the Open Standards Promotion Center of the Information-Technology Promotion Agency (a Japanese government agency) for submission to the Japanese Industrial Standards Committee and then to the International Organization for Standardization. It was accepted as a Japanese Industrial Standard (JIS X 3017) in 2011[8] and an international standard (ISO/IEC 30170) in 2012.[9] As of 2010, there are a number of complete or upcoming alternative implementations of Ruby, including YARV, JRuby, Rubinius, IronRuby, MacRuby (and its iOS counterpart, RubyMotion), and HotRuby. Each takes a different approach, with IronRuby, JRuby, MacRuby and Rubinius providing just-in-time compilation and MacRuby also providing ahead-of-time compilation.

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