syntax error, unexpected ‘::’ (T_PAAMAYIM_NEKUDOTAYIM), expecting ‘;’ or ‘,’¶

Description¶

Using the static class syntax directly on an interpolated string was not possible until PHP 8.0. Until then, it reported a syntax error.

Example¶

<?php

class Bar {
    static function foo() {}
    static $property = 3;
    const C = 4;
}

$a = "ar";
echo "B$a"::foo();
echo "B$a"::$property;
echo "B$a"::C;

?>

Solutions¶

Upgrade to PHP 8.0 or more recent.
Store the class name in a variable, and use that variable instead of the direct string.