Following is basic PHP language info, to refresh my memory.

• http://php.net
• php_reference_sheet.pdf

• Like Java, each line needs a semicolon
• Like Java, Comments
  • * /* multi line */ * # Comment text (unlike Java) ==== Relational Operators * == (Equal * === (Equal with type comparison) * ! (logical NOT), && (logical AND), || (logical OR), xor (logical XOR) ==== Variables ==== * Data Types: integer, float, boolean, string, array, object, resource, NULL * $variablename = “hello”; * $arrayname = array(); * $arrayname = array(“apple”, “pear”, “plum”); * $arrayname = array(“apple” ⇒ “red”, “pear” ⇒ “yellow”, “plum” ⇒ “purple”); ==== If Else ==== <code php> if (condition 1) { statement 1; } elseif (condition 2) { statement 2; } else { statement 3; } </code> ==== For Loop ==== Like Java <code php> for (<intialize>;<condition>;<update>) { statements; } </code> Unlike Java - foreach <code php> foreach ($arrayname as $arrayitem) { statements; break; continue; } foreach ($arrayname as $key ⇒ $value) { statements; } ==== Common Functions ==== * sort($arrayname); (Sort array assigns new keys) * asort($arrayname); (Sort array maintain keys) * rsort($arrayname); (Sort array in reverse, new keys) * arsort($arrayname); (Sort array in reverse, maintain keys) * count($array); (Count elements); * count($array, COUNT_RECURSIVE); (Count multidimensional array); ==== User-Defined Functions ==== <code php> function myFunction ($myparam = “default value”) { return “I'm done.”; } </code> ==== Class structure ==== <code php> class MyClass { public $myTitle = “hello”; public function myFunction($myparameter = “default value”) { } } </code> Declare and Use Class * $variable = new class_name(); * $variable→function_name(); * class_name::function_name(); (Static call)