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PHP Tutorial for Beginners7# What are PHP Constants and Constants are case sensitive ?

3,579 views · Published 7 March 2017 · 8:39 · Indexed 23 September 2026

Channel: Technical Suneja · 2017 · Education

PHP constants are name or identifier that can't be changed during the execution of the script. PHP constants can be defined by 2 ways:
1. Using define() function
2. Using const keyword
PHP constants follow the same PHP variable rules. For example, it can be started with letter or underscore only.
Conventionally, PHP constants should be defined in uppercase letters.

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PHP Tutorial for Beginners7# What are PHP Constants and Constants are case sensitive ?

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