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<?php function setKey($sessionKeys, $value) { $sessionKeysArray = explode(':', $sessionKeys); $sessionKey = ''; $keys = '[\'' . implode('\'][\'', $sessionKeysArray) . '\']'; eval('$tmp = is_array(&$_SESSION' . $sessionKey . ') ? ' . $value . ' : \'xxx\';'); var_dump($tmp); } $_SESSION['1']['2']['3'] = 'zzzz'; setKey('1:2:3', 77);

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