Arik Chakma
274082fd77
* refactor: clean to roadmap content * refactor: move shared helpers into scripts/lib
10 lines
748 B
Markdown
10 lines
748 B
Markdown
# Constants
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Constants in PHP are fixed values that do not change during the execution of the script. They can be handy for values that need to be reused often like a website's URL, a company's name, or even a hardcoded database connection string. Unlike variables, once a constant is defined, it cannot be undefined or reassigned. Constants are case-sensitive by default but this can be overridden. They are defined using the define() function or the const keyword. For instance, you can create a constant to hold the value of Pi and call it in your script like this:
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define("PI", 3.14);
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echo PI; // Outputs: 3.14
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Visit the following resources to learn more:
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- [@official@Constants](https://www.php.net/manual/en/language.constants.php) |