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<?php class Model { public function __isset($name) { return $name === 'foo'; } } $model = new Model(); $fooDefined = isset($model->foo); // true var_dump($fooDefined); $fooDefined = property_exists($model, 'foo') && $model->foo !== null; var_dump($fooDefined);
Output for git.master_jit, git.master
bool(true) bool(false)

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