PHP

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PHP JavascriptA marriage of two languages

• Seth Wing

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Overview

• Motivation for presentation
• Overview of PHP
• History of PHP
• Overview of Javascript
• History of Javascript
• How they work together
• Conclusion
• Questions

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Motivation
PHP Javascript a marriage of two languages

• if( (num_results 0))
• displayForm FALSE
• ?gt
• lth2gtNo matches were foundlt/h2gt
• ltbr /gt
• Do you wish to add a new person?
• ltinput type"button" onClick
  "javascriptAddNewPerson()"gt
• ltbutton onclick"javascriptreset1()"gtNew
  Searchlt/buttongt
• lt?php
• else
• //display the data in HTML format

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Overview
PHP generates web pages Most common use is
database queries
Valuable bandwidth

• Javascript performs client-side operations
• Examples
• Form verification
• Popupwindows
• Dynamic displays

Client
Server
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Server side scripting languages

• ASP Microsoft
• ColdFusion
• JSP (JavaServer Pages)
• PHP
• Server-side javascript

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What is PHP?

• Server side scripting language
• Can be embedded in HTML document to generate
  dynamic web pages
• Generally used to query and display database
  information
• Open source

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History of PHP

• Started as a simple perl script
• Rewritten using C and released to public as open
  source
• PHP/FI personal home page/Forms Interpreter
• PHP/FI 2.0 released in 1997
• 1 of domains used PHP/FI 2.0

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History of PHP

• 1998 - PHP 3 released
• complete new write-up
• Renamed PHP hypertext preproccesor
• 10 of all web domains
• PHP 5 released in 2005
• 20 of all web domains
• www.php.net

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Uses of PHP today

• Used on many different systems
• Query database on the server
• Extensive support for database utilization
• Process forms from HTML pages
• Displaying dynamic information

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What is javascript?

• Client side scripting language
• Perl / C like language
• Loosely type variables
• Block structure
• Easily ported to other web pages
• Javascript completely dependent on web browser

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History of javascript

• Started in 1995 by Netscape
• Developed as a compliment to both Java and HTML
• Plagued by security flaws and inconsistencies
  between browsers
• Now remains a powerful compliment to PHP to
  perform functions at the clients computer

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(No Transcript)
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Review
PHP Javascript a marriage of two languages

• if( ! (num_results 0))
• displayForm FALSE
• ?gt
• lth2gtNo matches were foundlt/h2gt
• ltbr /gt
• Do you wish to add a new person?
• ltinput type"button" onClick
  "javascriptAddNewPerson()"gt
• ltbutton onclick"javascriptreset1()"gtNew
  Searchlt/buttongt
• lt?php
• else
• //display the data in HTML format

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Review
PHP Javascript a marriage of two languages

• If the query did not find anything then this is
  what will be sent
• lth2gtNo matches were foundlt/h2gt
• ltbr /gt
• Do you wish to add a new person?
• ltinput type"button" onClick
  "javascriptAddNewPerson()"gt
• ltbutton onclick"javascriptreset1()"gtNew
  Searchlt/buttongt

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(No Transcript)
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Conclusion

• Motivation for presentation
• Overview of PHP
• History of PHP
• Overview of Javascript
• History of Javascript
• How they work together
• Conclusion
• Questions

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• Questions?