php 查找类的实例化位置

$class = new ReflectionClass('YourClass');
$instances = $class->getInstances();
foreach ($instances as $instance) {
    echo get_class($instance) . ': ' . spl_object_id($instance) . PHP_EOL;
}

class MyClass
{
    public function __construct()
    {
        $trace = debug_backtrace();
        foreach ($trace as $index => $call) {
            if (isset($call['class']) && $call['class'] === 'MyClass') {
                echo "Instance created at {$call['file']}:{$call['line']}" . PHP_EOL;
            }
        }
    }
}

new MyClass();