Incorrect Sql Expression parameters when passing zero in the constructor

[albertor24]

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I am trying to create an expression that has zero as the parameter value. However, the parameters incorrectly show as empty.

Code to reproduce the issue

$expr = new \Zend\Db\Sql\Expression('?', '0');
print_r($expr->getParameters());

Expected results

It prints "0"

Actual results

It prints empty array

Proposed fix

https://github.com/zendframework/zend-db/blob/master/src/Sql/Expression.php#L59

In Zend\Db\Sql\Expression, update the constructor to explicitly check for '0' when setting parameters

if ($parameters || $parameters === '0') {
     $this->setParameters($parameters);
}

[michalbundyra]

@albertor24 Please submit PR and add test to cover your case 👍

[weierophinney]

This repository has been closed and moved to laminas/laminas-db; a new issue has been opened at https://github.com/laminas/laminas-db/issues/6.