Code Snippets zum Blogbeitrag unter https://sevenx.de/php-array-teil-1-einfuehrung-in-arrays-tutorial/

1-simple-array.php

<?php
$zahlen = array(11,22,33,44);
$laender = array("England", "Deutschland", "Kanada", "Schweiz");
?>

2-print-array.php

<?php
print_r($zahlen); //Array ausgeben
Array ( [0] => 11 [1] => 22 [2] => 33 [3] => 44 ) //Ergebnis

print_r($laender); //Array ausgeben
Array ( [0] => England [1] => Deutschland [2] => Kanada [3] => Schweiz ) //Ergebnis
?>

3-assoc-array.php

<?php
$laender = array("EN"=>"England","DE"=>"Deutschland","CA"=>"Kanada","CH"=>"Schweiz");
print_r($laender); //Ausgabe
Array ( [EN] => England [DE] => Deutschland [CA] => Kanada [CH] => Schweiz )  

$germany = array(
   "Capital" => "Berlin",
   "Currency" => "Euro",
   "Continent" => "Europoa",
   "Language" => "Deutsch",
   "Domain" => ".de"
);
print_r($germany); //Ausgabe
Array ( [Capital] => Berlin [Currency] => Euro [Continent] => Europoa [Language] => Deutsch [Domain] => .de )
?>

4-multi-dim-array.php

<?php
//zweidimensionaler Array
$laender = array(
   "DE"=> "Deutschland",
   "GB"=> array("England","Schottland","Wales","Nordirland"),
   "CA"=> "Kanada"
); 

//dreidimensionaler Array
$laenderinfo = array(
   "EN" => array(
       "Country"=> "England",
       "Capital"=> "London",
       "Currency"=> "Pfund",
       "Continent"=> "Europoa",
       "Language"=> "englisch",
       "Domain"=> ".uk"
   ),
   "DE" => array(
      "Country"=> "Deutschland",
      "Capital"=> "Berlin",
      "Currency"=> "Euro",
      "Continent"=> "Europoa",
      "Language"=> "deutsch",
      "Domain"=> ".de"
    ),
   "CA" => array(
      "Country"=> "Kanady",
      "Capital"=> "Ottawa",
      "Currency"=> "Kanad. Dollar",
      "Continent"=> "Nordamerika",
      "Language"=> array ("englisch", "französisch"),
      "Domain"=> ".ca"
   )				                
);
?>

5-print-one-value.php

<?php
$laender = array("England", "Deutschland", "Kanada", "Schweiz");
echo $laender[0]; //ergibt: England
echo $laender[2]; //ergibt: Kanada

//assoziativer Array
$laender = array(
   "EN" => "England",
   "DE" => "Deutschland",
   "CA" => "Kanada",
   "CH" => "Schweiz"
);
echo $laender["DE"]; // ergibt: Deutschland
echo $laender["EN"]; // ergibt: England
?>

6-print-one-value-multi-dim.php

<?php
//zweidimensionaler Array
$laender = array(
   "DE"=> "Deutschland",
   "GB"=> array("England","Schottland","Wales","Nordirland"),
   "CA"=> "Kanada"
); 
echo $lander{"DE"]; //ergibt: Deutschland
echo $laender["GB"][0]; //ergibt: England

//dreidimensionaler Array
$laenderinfo = array(
   "EN" => array(
       "Country"=> "England",
       "Capital"=> "London",
       "Currency"=> "Pfund",
       "Continent"=> "Europoa",
       "Language"=> "englisch",
       "Domain"=> ".uk"
   ),
   "DE" => array(
      "Country"=> "Deutschland",
      "Capital"=> "Berlin",
      "Currency"=> "Euro",
      "Continent"=> "Europoa",
      "Language"=> "deutsch",
      "Domain"=> ".de"
    ),
   "CA" => array(
      "Country"=> "Kanady",
      "Capital"=> "Ottawa",
      "Currency"=> "Kanad. Dollar",
      "Continent"=> "Nordamerika",
      "Language"=> array ("englisch", "französisch"),
      "Domain"=> ".ca"
   )				                
);
echo $laenderinfo["EN"]["Capital"]; //ergibt: London
echo $laenderinfo["CA"]["Language"][0]; //ergibt: englisch
?>

7-all-values.php

<?php
//Eindimensionale Arrays 

//einfacher Array
$laender = array("England", "Deutschland", "Kanada", "Schweiz");

foreach ($laender as $land) {
	echo $land . ", ";
}
//ergibt: England, Deutschland, Kanada, Schweiz,

//Assoziativer Array
$laender2 = array(
	"EN" => "England",
	"DE" => "Deutschland",
	"CA" => "Kanada",
	"CH" => "Schweiz"
);

foreach ($laender2 as $key => $land) {
	echo $key . " - " . $land . "<br>";
}
/* ergibt:
EN - England
DE - Deutschland
CA - Kanada
CH - Schweiz
*/

// Multidimensionaler Array

//zweidimensional - verschachtelung der Schleifen
$laender3 = array(
	"DE" 	=> "Deutschland",
	"GB" 	=> array("England","Schottland","Wales","Nordirland"),
	"CA" 	=> "Kanada",
	"CH" 	=> "Schweiz"
); 
foreach ($laender3 as $key => $land) {

	if(is_array($land)) {
		echo $key . " - ";
		foreach ($land as $details) {
			echo $details . ", ";
		}
		echo "<br>";

	} else {
		echo $key . " - " . $land . "<br>";	
	}
}
/* ergibt:
DE - Deutschland
GB - England, Schottland, Wales, Nordirland, 
CA - Kanada
CH - Schweiz
*/
?>