Advanced Web Site Development

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• Advanced Web Site Development

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• PHP
• Scripting/
• dynamic/
• interpreted language

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• HTTP, without PHP

Request
HTTP Client software
HTTP Server software
Response
File system
Presentation
Processing
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• HTTP, with PHP

Request
HTTP Client software
HTTP Server software
PHP interpreter
Response
File system
Presentation
Processing
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• Basic PHP syntax
• lt?php ... ?gt

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• Basic PHP syntax
• one-line comment
• // on-line comment
• /
• multi-line comment
• /

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• Basic types (scalars)
• Strings
• Integers
• Floats (double)
• Booleans

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• Complex types
• Arrays
• Objects

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• Special types
• Resources
• NULL

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• Weak typing
• 0 false 0
• 0 ! false
• 0 ! false
• 0 ! 0

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• Variables
• var
• i_am_a_variable
• me2
• andMe_2

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• Control structures
• if
• ifelse
• ifelseifelse
• while
• for
• foreach

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• Functions
• PHP probably has it built in
• http//php.net/manual/en/funcref.php

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• Old standbys
• printf()
• substr()
• str_replace()
• htmlentities()
• array_map()
• array_key_exists()
• in_array()

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• In-class work
• Test-first development

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• In-class work
• Palindrome detection

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• Homework
• Solve two of the four problems