Error: No se pudo conectar a MySQL.
errno de depuración: 
error de depuración: 
array(3) {
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  array(7) {
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    string(43) "/var/www/html/b2c/php/class.controlador.php"
    ["line"]=>
    int(24)
    ["function"]=>
    string(11) "__construct"
    ["class"]=>
    string(2) "db"
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    object(db)#5 (11) {
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      bool(false)
      ["resultado"]=>
      NULL
      ["nrows"]=>
      NULL
      ["insertid"]=>
      NULL
      ["dbhost"]=>
      string(12) "192.168.0.53"
      ["dbname"]=>
      string(3) "b2c"
      ["dbuser"]=>
      NULL
      ["dbpass"]=>
      NULL
      ["error"]=>
      string(0) ""
      ["merror"]=>
      string(0) ""
      ["merrno"]=>
      string(0) ""
    }
    ["type"]=>
    string(2) "->"
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    array(4) {
      [0]=>
      &string(12) "192.168.0.53"
      [1]=>
      &string(3) "b2c"
      [2]=>
      &string(6) "SAdmin"
      [3]=>
      &string(8) "PIPESADA"
    }
  }
  [1]=>
  array(7) {
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    string(35) "/var/www/html/b2c/php/class.web.php"
    ["line"]=>
    int(17)
    ["function"]=>
    string(11) "__construct"
    ["class"]=>
    string(11) "controlador"
    ["object"]=>
    object(web)#2 (21) {
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      NULL
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      NULL
      ["metas"]=>
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      ["js"]=>
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      ["msg"]=>
      array(0) {
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      ["clases"]=>
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      ["paginas"]=>
      array(0) {
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      ["modal"]=>
      bool(true)
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      object(db)#3 (12) {
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        object(mysqli)#4 (19) {
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          int(1040)
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          string(0) ""
          ["error_list"]=>
          array(0) {
          }
          ["field_count"]=>
          int(0)
          ["host_info"]=>
          string(22) "bd.aavv.net via TCP/IP"
          ["info"]=>
          string(65) "
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          int(0)
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          string(18) "11.4.3-MariaDB-log"
          ["server_version"]=>
          int(110403)
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          string(137) "Uptime: 142947  Threads: 301  Questions: 113900187  Slow queries: 1259  Opens: 29805  Open tables: 15895  Queries per second avg: 796.800"
          ["sqlstate"]=>
          string(5) "00000"
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        string(0) ""
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        int(0)
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      ["profiler"]=>
      NULL
      ["modulo"]=>
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      ["opcion"]=>
      NULL
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      string(2) "es"
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      ["clases_buscador_excluidas"]=>
      array(0) {
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    ["type"]=>
    string(2) "->"
    ["args"]=>
    array(0) {
    }
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  [2]=>
  array(7) {
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    ["line"]=>
    int(43)
    ["function"]=>
    string(11) "__construct"
    ["class"]=>
    string(3) "web"
    ["object"]=>
    object(web)#2 (21) {
      ["tpl"]=>
      NULL
      ["titulo"]=>
      NULL
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      NULL
      ["js"]=>
      array(0) {
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      ["msg"]=>
      array(0) {
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      ["clases"]=>
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      ["paginas"]=>
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      ["modal"]=>
      bool(true)
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      ["clases_nivo"]=>
      array(0) {
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      ["v_clase_multipoblacion"]=>
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      array(0) {
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    ["type"]=>
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    ["args"]=>
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}