array () php code example

Example 1: php arrays

#Arrays

<?php
    #array is a variable that holds multiple values
    /*
    Three types of arrays
        - Indexed
        - associative
        - Multi-dimensional
    */
    // Indexed array is the most common and easiest
    $people = array('Kevin', 'Jeremy ', 'Sara');
    $ids = array(23, 55, 12);
    $cars = ['Honda', ' Toyota', 'Ford'];  // also an array
    //add to an array
    $cars[3] = ' Audi';
    // you can use empty brackets and it will be added to the last one
    $cars[] = ' Chevy';

    echo $people[1];
    echo $ids[1];
    echo $cars[1];    
    echo $cars[3];
    echo $cars[4];
    echo count($cars);
    //you can also print the entire array
    print_r($cars);
    //to look at data type
    echo var_dump($cars);

    //Associative Arrays key pairs
    $people1 = array('Kevin' => 35, 'Jeremy' => 23, 'Sara' => 19);
    $ids1 = array(23 => 'Kevin', 55 => 'Jeremy', 12 => 'Sara');
    echo $people1['Kevin'];
    echo $ids1[23];
    //add to these types of arrays
    $people1['Jill'] = 44;
    echo $people1['Jill'];
    print_r($people1);
    var_dump($people1);

    //Multi-Dimensional Arrays aka an array within an array
 
    $cars2 = array(
        array('Honda',20,10),
        array('Toyota',30,20),
        array('Ford',23,12)
    );

    echo $cars2[1][0];

    
?>

Example 2: php array

<?php
$array = array(
    "foo" => "bar",
    42    => 24,
    "multi" => array(
         "dimensional" => array(
             "array" => "foo"
         )
    )
);

var_dump($array["foo"]);
var_dump($array[42]);
var_dump($array["multi"]["dimensional"]["array"]);
?>

Example 3: php arrays

$nums = [1, 2, 3, 4, 5];

Example 4: php array

<html>
   <body>
   
      <?php
         /* First method to create array. */
         $numbers = array( 1, 2, 3, 4, 5);
         
         foreach( $numbers as $value ) {
            echo "Value is $value <br />";
         }
         
         /* Second method to create array. */
         $numbers[0] = "one";
         $numbers[1] = "two";
         $numbers[2] = "three";
         $numbers[3] = "four";
         $numbers[4] = "five";
         
         foreach( $numbers as $value ) {
            echo "Value is $value <br />";
         }
      ?>
      
   </body>
</html>

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