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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?php
class Config
{
public function __construct(?array $config = null, \mysqli $connection = null)
{
if ($connection !== null && !($connection instanceof \mysqli))
{
throw new \InvalidArgumentException(
"Invalid mysqli connection object passed. Instance of 'mysqli' expected, '" . gettype($connection) . "' given."
);
}
}
}
new Config ([], 'bar');