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Notice: Undefined index: start in /home/cehuangu/public_html/clima/graph.php on line 5

Fatal error: Uncaught Error: Call to undefined method mysqli_result::fetch_all() in /home/cehuangu/public_html/clima/graph.php:35 Stack trace: #0 {main} thrown in /home/cehuangu/public_html/clima/graph.php on line 35