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Deprecated: mysqli::prepare(): Passing null to parameter #1 ($query) of type string is deprecated in /var/www/html/ws/getNumConsultas.php on line 22

Fatal error: Uncaught mysqli_sql_exception: Query was empty in /var/www/html/ws/getNumConsultas.php:22 Stack trace: #0 /var/www/html/ws/getNumConsultas.php(22): mysqli->prepare() #1 {main} thrown in /var/www/html/ws/getNumConsultas.php on line 22