PHP array extract a particular key value from various arrays?

Question

I have the following arrays

$country["china"] = array(
  "shortcode" => "CN",
  "president" => "Xi Jinping",
  "currency" => "Yuan",
  );

$country["america"] = array(
  "shortcode" => "US",
  "president" => "Barack Obama",
  "currency" => "Dollar",
  );

$country["russia"] = array(
  "shortcode" => "RU",
  "president" => "Vladimir Putin",
  "currency" => "Rubble",
  );

Now I'd like to extract the "president" value for each array above.

I tried this

foreach(array_keys($country) as $countryName => $countryvalue)
  echo  $countryvalue . "<br>";

I would like instead to get this output Xi Jinping Barack Obama Vladimir Putin

but instead I am getting a list of countries.

Don't use array_keys then. Just a foreach($country as $countrydata) echo $countrydata['president']. — Wrikken
– Wrikken, Commented Jan 2, 2014 at 13:06

Kumar V · Accepted Answer · 2014-01-02 13:06:09Z

4

try this

foreach($country as $c)
{
  echo $c["president"]."<br/>";
}

answered Jan 2, 2014 at 13:06

Kumar V

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Comments

Abhik Chakraborty · Accepted Answer · 2014-01-02 13:07:30Z

1

Try this

$country["china"] = array(
  "shortcode" => "CN",
  "president" => "Xi Jinping",
  "currency" => "Yuan",
  );

$country["america"] = array(
  "shortcode" => "US",
  "president" => "Barack Obama",
  "currency" => "Dollar",
  );

$country["russia"] = array(
  "shortcode" => "RU",
  "president" => "Vladimir Putin",
  "currency" => "Rubble",
  );


foreach($country as $key=>$val){
    echo $val["president"];
}

answered Jan 2, 2014 at 13:07

Abhik Chakraborty

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Comments

Manish Jangir · Accepted Answer · 2014-01-02 13:08:56Z

1

Try this one

foreach($country as $key => $value) {
       echo $value['president']."<br/>";

  }

answered Jan 2, 2014 at 13:08

Manish Jangir

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Comments

sas · Accepted Answer · 2014-01-02 13:12:40Z

1

foreach($country as $countryName => $countryvalue){
   echo $val["president"];
}

edited Jan 2, 2014 at 13:12

answered Jan 2, 2014 at 13:06

sas

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Comments

Peon · Accepted Answer · 2014-01-02 13:14:28Z

0

I would strongly suggest you, to put all of that in database and access the data with simple query.

// Your table
CREATE TABLE `country`
(
    id serial primary key
    , name varchar(64)
    , shortcode varchar(2)
    , president varchar(64)
    , currency varchar(24)
);

// Insert data
INSERT INTO `country`
    ( name, shortcode, president, currency )
VALUES
    ( 'china', 'CN', 'Xi Jinping', 'Yuan' )
    , ( 'america', 'US', 'Barack Obama', 'Dollar' )
    , ( 'russia', 'RU', 'Vladimir Putin', 'Rubble' );

And now to access, just write simple query:

SELECT president FROM country WHERE name = 'china';

PS: this way it will be easier to update the data and you won't need to change your code.

answered Jan 2, 2014 at 13:14

Peon

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2 Comments

Panny Monium Over a year ago

Thanks but its small amount of data. So there is no need to stay diving int tables.

Peon Over a year ago

Don't say that. Data, that is permanent, should be in DB. Arrays are mostly used for generated data and not for storing information.

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