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Informations about the package php-invariant

php-invariant

Yet another assertion library.

Installation

You can install this library via composer:

Usage

The main function to be used in this library is invariant. This function is intended to indicate a programmer error for a condition that should never occur, similar to assertions. For example:

If the first argument value evaluates to true, the program continues execution; otherwise, the function invariant_violation is called. That function either throws an InvariantException, or calls the handler previously registered by the function invariant_callback_register.

The first argument is evaluated as a boolean expression. The second argument is a string that can contain text and/or optional formatting information as understood by the function sprintf. The optional comma-separated list of values following the string must match the set of types expected by the optional formatting information inside that string.

TODO

All versions of php-invariant with dependencies

PHP Build Version
Package Version
Requires php Version >=7.4
zheltikov/php-exceptions Version ^1.0
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