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<?php $formData = array(); echo 'empty($formData[chain_id]): '; var_dump(empty($formData['chain_id'])); echo "\n"; echo '$formData[chain_id] === \'0\': '; var_dump($formData['chain_id'] === '0'); echo "\n"; $formData['chain_id'] = 0; echo 'empty($formData[chain_id]): '; var_dump(empty($formData['chain_id'])); echo "\n"; echo '$formData[chain_id] === \'0\': '; var_dump($formData['chain_id'] === '0'); echo "\n"; $formData['chain_id'] = 1; echo 'empty($formData[chain_id]): '; var_dump(empty($formData['chain_id'])); echo "\n"; echo '$formData[chain_id] === \'0\': '; var_dump($formData['chain_id'] === '0'); echo "\n";
Output for git.master, git.master_jit, rfc.property-hooks
empty($formData[chain_id]): bool(true) $formData[chain_id] === '0': Warning: Undefined array key "chain_id" in /in/B89FO on line 8 bool(false) empty($formData[chain_id]): bool(true) $formData[chain_id] === '0': bool(false) empty($formData[chain_id]): bool(false) $formData[chain_id] === '0': bool(false)

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