Artículo original:
Conectar PHP con Base de Datos utilizando PDO
| Country | Continent | Population | Head of state |
|---|---|---|---|
| Aruba | North America | 103,000 | Beatrix |
| Afghanistan | Asia | 22,720,000 | Mohammad Omar |
| Angola | Africa | 12,878,000 | José Eduardo dos Santos |
| Anguilla | North America | 8,000 | Elisabeth II |
| Albania | Europe | 3,401,200 | Rexhep Mejdani |
| Andorra | Europe | 78,000 | |
| Netherlands Antilles | North America | 217,000 | Beatrix |
| United Arab Emirates | Asia | 2,441,000 | Zayid bin Sultan al-Nahayan |
| Argentina | South America | 37,032,000 | Fernando de la Rúa |
| Armenia | Asia | 3,520,000 | Robert Kotšarjan |
| American Samoa | Oceania | 68,000 | George W. Bush |
| Antarctica | Antarctica | 0 | |
| French Southern territories | Antarctica | 0 | Jacques Chirac |
| Antigua and Barbuda | North America | 68,000 | Elisabeth II |
| Australia | Oceania | 18,886,000 | Elisabeth II |
| Austria | Europe | 8,091,800 | Thomas Klestil |
| Azerbaijan | Asia | 7,734,000 | Heydär Äliyev |
| Burundi | Africa | 6,695,000 | Pierre Buyoya |
| Belgium | Europe | 10,239,000 | Albert II |
| Benin | Africa | 6,097,000 | Mathieu Kérékou |
| Burkina Faso | Africa | 11,937,000 | Blaise Compaoré |
| Bangladesh | Asia | 129,155,000 | Shahabuddin Ahmad |
| Bulgaria | Europe | 8,190,900 | Petar Stojanov |
| Bahrain | Asia | 617,000 | Hamad ibn Isa al-Khalifa |
| Bahamas | North America | 307,000 | Elisabeth II |
| Bosnia and Herzegovina | Europe | 3,972,000 | Ante Jelavic |
| Belarus | Europe | 10,236,000 | Aljaksandr Lukašenka |
| Belize | North America | 241,000 | Elisabeth II |
| Bermuda | North America | 65,000 | Elisabeth II |
| Bolivia | South America | 8,329,000 | Hugo Bánzer Suárez |
| Brazil | South America | 170,115,000 | Fernando Henrique Cardoso |
| Barbados | North America | 270,000 | Elisabeth II |
| Brunei | Asia | 328,000 | Haji Hassan al-Bolkiah |
| Bhutan | Asia | 2,124,000 | Jigme Singye Wangchuk |
| Bouvet Island | Antarctica | 0 | Harald V |
| Botswana | Africa | 1,622,000 | Festus G. Mogae |
| Central African Republic | Africa | 3,615,000 | Ange-Félix Patassé |
| Canada | North America | 31,147,000 | Elisabeth II |
| Cocos (Keeling) Islands | Oceania | 600 | Elisabeth II |
| Switzerland | Europe | 7,160,400 | Adolf Ogi |
| Chile | South America | 15,211,000 | Ricardo Lagos Escobar |
| China | Asia | 1,277,558,000 | Jiang Zemin |
| Côte d’Ivoire | Africa | 14,786,000 | Laurent Gbagbo |
| Cameroon | Africa | 15,085,000 | Paul Biya |
| Congo, The Democratic Republic of the | Africa | 51,654,000 | Joseph Kabila |
| Congo | Africa | 2,943,000 | Denis Sassou-Nguesso |
| Cook Islands | Oceania | 20,000 | Elisabeth II |
| Colombia | South America | 42,321,000 | Andrés Pastrana Arango |
| Comoros | Africa | 578,000 | Azali Assoumani |
| Cape Verde | Africa | 428,000 | António Mascarenhas Monteiro |
| Costa Rica | North America | 4,023,000 | Miguel Ángel Rodríguez Echeverría |
| Cuba | North America | 11,201,000 | Fidel Castro Ruz |
| Christmas Island | Oceania | 2,500 | Elisabeth II |
| Cayman Islands | North America | 38,000 | Elisabeth II |
| Cyprus | Asia | 754,700 | Glafkos Klerides |
| Czech Republic | Europe | 10,278,100 | Václav Havel |
| Germany | Europe | 82,164,700 | Johannes Rau |
| Djibouti | Africa | 638,000 | Ismail Omar Guelleh |
| Dominica | North America | 71,000 | Vernon Shaw |
| Denmark | Europe | 5,330,000 | Margrethe II |
| Dominican Republic | North America | 8,495,000 | Hipólito Mejía Domínguez |
| Algeria | Africa | 31,471,000 | Abdelaziz Bouteflika |
| Ecuador | South America | 12,646,000 | Gustavo Noboa Bejarano |
| Egypt | Africa | 68,470,000 | Hosni Mubarak |
| Eritrea | Africa | 3,850,000 | Isayas Afewerki [Isaias Afwerki] |
| Western Sahara | Africa | 293,000 | Mohammed Abdel Aziz |
| Spain | Europe | 39,441,700 | Juan Carlos I |
| Estonia | Europe | 1,439,200 | Lennart Meri |
| Ethiopia | Africa | 62,565,000 | Negasso Gidada |
| Finland | Europe | 5,171,300 | Tarja Halonen |
| Fiji Islands | Oceania | 817,000 | Josefa Iloilo |
| Falkland Islands | South America | 2,000 | Elisabeth II |
| France | Europe | 59,225,700 | Jacques Chirac |
| Faroe Islands | Europe | 43,000 | Margrethe II |
| Micronesia, Federated States of | Oceania | 119,000 | Leo A. Falcam |
| Gabon | Africa | 1,226,000 | Omar Bongo |
| United Kingdom | Europe | 59,623,400 | Elisabeth II |
| Georgia | Asia | 4,968,000 | Eduard Ševardnadze |
| Ghana | Africa | 20,212,000 | John Kufuor |
| Gibraltar | Europe | 25,000 | Elisabeth II |
| Guinea | Africa | 7,430,000 | Lansana Conté |
| Guadeloupe | North America | 456,000 | Jacques Chirac |
| Gambia | Africa | 1,305,000 | Yahya Jammeh |
| Guinea-Bissau | Africa | 1,213,000 | Kumba Ialá |
| Equatorial Guinea | Africa | 453,000 | Teodoro Obiang Nguema Mbasogo |
| Greece | Europe | 10,545,700 | Kostis Stefanopoulos |
| Grenada | North America | 94,000 | Elisabeth II |
| Greenland | North America | 56,000 | Margrethe II |
| Guatemala | North America | 11,385,000 | Alfonso Portillo Cabrera |
| French Guiana | South America | 181,000 | Jacques Chirac |
| Guam | Oceania | 168,000 | George W. Bush |
| Guyana | South America | 861,000 | Bharrat Jagdeo |
| Hong Kong | Asia | 6,782,000 | Jiang Zemin |
| Heard Island and McDonald Islands | Antarctica | 0 | Elisabeth II |
| Honduras | North America | 6,485,000 | Carlos Roberto Flores Facussé |
| Croatia | Europe | 4,473,000 | Štipe Mesic |
| Haiti | North America | 8,222,000 | Jean-Bertrand Aristide |
| Hungary | Europe | 10,043,200 | Ferenc Mádl |
| Indonesia | Asia | 212,107,000 | Abdurrahman Wahid |
| India | Asia | 1,013,662,000 | Kocheril Raman Narayanan |
| British Indian Ocean Territory | Africa | 0 | Elisabeth II |
| Ireland | Europe | 3,775,100 | Mary McAleese |
| Iran | Asia | 67,702,000 | Ali Mohammad Khatami-Ardakani |
| Iraq | Asia | 23,115,000 | Saddam Hussein al-Takriti |
| Iceland | Europe | 279,000 | Ólafur Ragnar Grímsson |
| Israel | Asia | 6,217,000 | Moshe Katzav |
| Italy | Europe | 57,680,000 | Carlo Azeglio Ciampi |
| Jamaica | North America | 2,583,000 | Elisabeth II |
| Jordan | Asia | 5,083,000 | Abdullah II |
| Japan | Asia | 126,714,000 | Akihito |
| Kazakstan | Asia | 16,223,000 | Nursultan Nazarbajev |
| Kenya | Africa | 30,080,000 | Daniel arap Moi |
| Kyrgyzstan | Asia | 4,699,000 | Askar Akajev |
| Cambodia | Asia | 11,168,000 | Norodom Sihanouk |
| Kiribati | Oceania | 83,000 | Teburoro Tito |
| Saint Kitts and Nevis | North America | 38,000 | Elisabeth II |
| South Korea | Asia | 46,844,000 | Kim Dae-jung |
| Kuwait | Asia | 1,972,000 | Jabir al-Ahmad al-Jabir al-Sabah |
| Laos | Asia | 5,433,000 | Khamtay Siphandone |
| Lebanon | Asia | 3,282,000 | Émile Lahoud |
| Liberia | Africa | 3,154,000 | Charles Taylor |
| Libyan Arab Jamahiriya | Africa | 5,605,000 | Muammar al-Qadhafi |
| Saint Lucia | North America | 154,000 | Elisabeth II |
| Liechtenstein | Europe | 32,300 | Hans-Adam II |
| Sri Lanka | Asia | 18,827,000 | Chandrika Kumaratunga |
| Lesotho | Africa | 2,153,000 | Letsie III |
| Lithuania | Europe | 3,698,500 | Valdas Adamkus |
| Luxembourg | Europe | 435,700 | Henri |
| Latvia | Europe | 2,424,200 | Vaira Vike-Freiberga |
| Macao | Asia | 473,000 | Jiang Zemin |
| Morocco | Africa | 28,351,000 | Mohammed VI |
| Monaco | Europe | 34,000 | Rainier III |
| Moldova | Europe | 4,380,000 | Vladimir Voronin |
| Madagascar | Africa | 15,942,000 | Didier Ratsiraka |
| Maldives | Asia | 286,000 | Maumoon Abdul Gayoom |
| Mexico | North America | 98,881,000 | Vicente Fox Quesada |
| Marshall Islands | Oceania | 64,000 | Kessai Note |
| Macedonia | Europe | 2,024,000 | Boris Trajkovski |
| Mali | Africa | 11,234,000 | Alpha Oumar Konaré |
| Malta | Europe | 380,200 | Guido de Marco |
| Myanmar | Asia | 45,611,000 | kenraali Than Shwe |
| Mongolia | Asia | 2,662,000 | Natsagiin Bagabandi |
| Northern Mariana Islands | Oceania | 78,000 | George W. Bush |
| Mozambique | Africa | 19,680,000 | Joaquím A. Chissano |
| Mauritania | Africa | 2,670,000 | Maaouiya Ould Sid´Ahmad Taya |
| Montserrat | North America | 11,000 | Elisabeth II |
| Martinique | North America | 395,000 | Jacques Chirac |
| Mauritius | Africa | 1,158,000 | Cassam Uteem |
| Malawi | Africa | 10,925,000 | Bakili Muluzi |
| Malaysia | Asia | 22,244,000 | Salahuddin Abdul Aziz Shah Alhaj |
| Mayotte | Africa | 149,000 | Jacques Chirac |
| Namibia | Africa | 1,726,000 | Sam Nujoma |
| New Caledonia | Oceania | 214,000 | Jacques Chirac |
| Niger | Africa | 10,730,000 | Mamadou Tandja |
| Norfolk Island | Oceania | 2,000 | Elisabeth II |
| Nigeria | Africa | 111,506,000 | Olusegun Obasanjo |
| Nicaragua | North America | 5,074,000 | Arnoldo Alemán Lacayo |
| Niue | Oceania | 2,000 | Elisabeth II |
| Netherlands | Europe | 15,864,000 | Beatrix |
| Norway | Europe | 4,478,500 | Harald V |
| Nepal | Asia | 23,930,000 | Gyanendra Bir Bikram |
| Nauru | Oceania | 12,000 | Bernard Dowiyogo |
| New Zealand | Oceania | 3,862,000 | Elisabeth II |
| Oman | Asia | 2,542,000 | Qabus ibn Sa´id |
| Pakistan | Asia | 156,483,000 | Mohammad Rafiq Tarar |
| Panama | North America | 2,856,000 | Mireya Elisa Moscoso Rodríguez |
| Pitcairn | Oceania | 50 | Elisabeth II |
| Peru | South America | 25,662,000 | Valentin Paniagua Corazao |
| Philippines | Asia | 75,967,000 | Gloria Macapagal-Arroyo |
| Palau | Oceania | 19,000 | Kuniwo Nakamura |
| Papua New Guinea | Oceania | 4,807,000 | Elisabeth II |
| Poland | Europe | 38,653,600 | Aleksander Kwasniewski |
| Puerto Rico | North America | 3,869,000 | George W. Bush |
| North Korea | Asia | 24,039,000 | Kim Jong-il |
| Portugal | Europe | 9,997,600 | Jorge Sampãio |
| Paraguay | South America | 5,496,000 | Luis Ángel González Macchi |
| Palestine | Asia | 3,101,000 | Yasser (Yasir) Arafat |
| French Polynesia | Oceania | 235,000 | Jacques Chirac |
| Qatar | Asia | 599,000 | Hamad ibn Khalifa al-Thani |
| Réunion | Africa | 699,000 | Jacques Chirac |
| Romania | Europe | 22,455,500 | Ion Iliescu |
| Russian Federation | Europe | 146,934,000 | Vladimir Putin |
| Rwanda | Africa | 7,733,000 | Paul Kagame |
| Saudi Arabia | Asia | 21,607,000 | Fahd ibn Abdul-Aziz al-Sa´ud |
| Sudan | Africa | 29,490,000 | Omar Hassan Ahmad al-Bashir |
| Senegal | Africa | 9,481,000 | Abdoulaye Wade |
| Singapore | Asia | 3,567,000 | Sellapan Rama Nathan |
| South Georgia and the South Sandwich Islands | Antarctica | 0 | Elisabeth II |
| Saint Helena | Africa | 6,000 | Elisabeth II |
| Svalbard and Jan Mayen | Europe | 3,200 | Harald V |
| Solomon Islands | Oceania | 444,000 | Elisabeth II |
| Sierra Leone | Africa | 4,854,000 | Ahmed Tejan Kabbah |
| El Salvador | North America | 6,276,000 | Francisco Guillermo Flores Pérez |
| San Marino | Europe | 27,000 | |
| Somalia | Africa | 10,097,000 | Abdiqassim Salad Hassan |
| Saint Pierre and Miquelon | North America | 7,000 | Jacques Chirac |
| Sao Tome and Principe | Africa | 147,000 | Miguel Trovoada |
| Suriname | South America | 417,000 | Ronald Venetiaan |
| Slovakia | Europe | 5,398,700 | Rudolf Schuster |
| Slovenia | Europe | 1,987,800 | Milan Kucan |
| Sweden | Europe | 8,861,400 | Carl XVI Gustaf |
| Swaziland | Africa | 1,008,000 | Mswati III |
| Seychelles | Africa | 77,000 | France-Albert René |
| Syria | Asia | 16,125,000 | Bashar al-Assad |
| Turks and Caicos Islands | North America | 17,000 | Elisabeth II |
| Chad | Africa | 7,651,000 | Idriss Déby |
| Togo | Africa | 4,629,000 | Gnassingbé Eyadéma |
| Thailand | Asia | 61,399,000 | Bhumibol Adulyadej |
| Tajikistan | Asia | 6,188,000 | Emomali Rahmonov |
| Tokelau | Oceania | 2,000 | Elisabeth II |
| Turkmenistan | Asia | 4,459,000 | Saparmurad Nijazov |
| East Timor | Asia | 885,000 | José Alexandre Gusmão |
| Tonga | Oceania | 99,000 | Taufa'ahau Tupou IV |
| Trinidad and Tobago | North America | 1,295,000 | Arthur N. R. Robinson |
| Tunisia | Africa | 9,586,000 | Zine al-Abidine Ben Ali |
| Turkey | Asia | 66,591,000 | Ahmet Necdet Sezer |
| Tuvalu | Oceania | 12,000 | Elisabeth II |
| Taiwan | Asia | 22,256,000 | Chen Shui-bian |
| Tanzania | Africa | 33,517,000 | Benjamin William Mkapa |
| Uganda | Africa | 21,778,000 | Yoweri Museveni |
| Ukraine | Europe | 50,456,000 | Leonid Kutšma |
| United States Minor Outlying Islands | Oceania | 0 | George W. Bush |
| Uruguay | South America | 3,337,000 | Jorge Batlle Ibáñez |
| United States | North America | 278,357,000 | George W. Bush |
| Uzbekistan | Asia | 24,318,000 | Islam Karimov |
| Holy See (Vatican City State) | Europe | 1,000 | Johannes Paavali II |
| Saint Vincent and the Grenadines | North America | 114,000 | Elisabeth II |
| Venezuela | South America | 24,170,000 | Hugo Chávez Frías |
| Virgin Islands, British | North America | 21,000 | Elisabeth II |
| Virgin Islands, U.S. | North America | 93,000 | George W. Bush |
| Vietnam | Asia | 79,832,000 | Trân Duc Luong |
| Vanuatu | Oceania | 190,000 | John Bani |
| Wallis and Futuna | Oceania | 15,000 | Jacques Chirac |
| Samoa | Oceania | 180,000 | Malietoa Tanumafili II |
| Yemen | Asia | 18,112,000 | Ali Abdallah Salih |
| Yugoslavia | Europe | 10,640,000 | Vojislav Koštunica |
| South Africa | Africa | 40,377,000 | Thabo Mbeki |
| Zambia | Africa | 9,169,000 | Frederick Chiluba |
| Zimbabwe | Africa | 11,669,000 | Robert G. Mugabe |