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Tutorial 4 – PHP Variables

| In: 4. Variables | 15,518 views

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<?php
// File Description: PHP - Variables Tutorial
$variableName = "Robert";
$a_Num = 10;
$aNumber = 9000;
 
$xValue = 8;
 
$userName;
$user_name;
 
?>

Common Rules For Naming Variables:
  • A variable name must start with an underscore “_” or letter
  • A variable name can only include alpha-numeric characters and underscores (a-z, A-Z, 0-9 and _ )
  • A variable name cannot contain spaces. If the variable is more than one word, separate it with capitalization or with an underscore.

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