Tag: constants

Constants in PHP
2020-09-18 02:14:43

A constant is a name or an identifier for a single value. The value of the constant cannot be changed during script execution. By default, a constant is case sensitive. By convention, constant identifiers are always uppercase. Constant names begin with a letter or an underscore (_), followed by any number of letters, numbers, or underscores. If you have defined a constant, it can never be changed or redefined.

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