Web Reference: Oct 22, 2015 Β· In PHP, variable and constant names are case sensitive, while function names and class names are not. As far as I am aware, PHP is the only language in which this happens. Variables in PHP are represented by a dollar sign followed by the name of the variable. The variable name is case-sensitive. A valid variable name starts with a letter (A-Z, a-z, or the bytes from 128 through 255) or underscore, followed by any number of letters, numbers, or underscores. Like HTML, you need to have the opening tag to start PHP code: If you mix PHP code with HTML, you need to have the enclosing tag: For example: However, if a file contains only PHP code, the enclosing tag is optional:
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Is Php Case Sensitive Php Net Worth 2026: Salary, Income & Wealth Net Worth & Biography
Estimated Worth: $23M - $40M
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Last Updated: April 8, 2026
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