syntax error, unexpected ‘-’, expecting ‘=’

Description

When defining a constant, the constant name must be valid. It must be satisfying the following regex: /[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*/. When an unexpected character appears, it yields this errors, mentioning the erroneous character first.

This error appears for global constant, written with const or for class constants, inside a class.

The unexpected character may have a lot of variations, in particular any non-letter or non-figure characters. Check the regex for more options.

Example

<?php

const A-B = 1;

?>

Solutions

• Remove the - in the constant name.

• Remove the unexpected character in the constant name.

• Remove the constant definition.