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This Concept Map, created with IHMC CmapTools, has information related to: PHPBDNew, PHP has Operators, Multi Line or Comment Block example /* This is a comment block */, Loops can be a Foreach Loop, Cookies are part of the HTTP header, PHP supports Variable Scope, Persistent Connections which are always checked by PHP, Syntax includes Formatting Characters: \n – New line \r – Carriage return \t – Tab \b – Backspace, Variable Scope comes in different types such as Local Variables, Form Variables contents can be accessed in the following ways Short Style, Variables are used for storing a values, like text strings, numbers or arrays. When a variable is declared, it can be used over and over again in your script. All variables in PHP start with a $ sign symbol $variable_name = value;, Styles are Short Style, PHP has two Styles, OOP has Methods, PHP has Security risks, Cookies can be set using setcookie(), Foreach Loop Foreach goes through each key in an array and gives a temporary variable to the value $array = array('Jo' => 20, 'Jan' => 24); foreach ($array as $value){ echo "$value, "; }, Syntax includes Comments, conditional statements Used to perform different actions based on different conditions statements like below Case Statement, Variables can come in an array, there are certain array variables, they are $_SERVER, For Loop will loop until iterations are complete such as the following example for ($counter = 10; $counter <= 100; $counter += 10) { }