How to get values from an Array in PHP?

we'll delve into various methods and techniques to extract values from arrays, providing you with the knowledge to navigate this crucial aspect of PHP programming.

Using array_values() Function


<?php
$array  =  array("A"=>"Broccoli", "B"=>"Tomato", "C"=>"Cucumber", "D"=>"Corn");

$new_array = array_values($array);

// single value
echo $new_array[0];  // Broccoli
echo $new_array[2];  // Cucumber

print_r($new_array);
/*
::::OUTPUT::::
Array
(
    [0] => Broccoli
    [1] => Tomato
    [2] => Cucumber
    [3] => Corn
)
*/
?>

Accessing Array Elements by Index

One of the simplest ways to retrieve values from an array is by referencing the specific index of the desired element. PHP arrays are zero-indexed, meaning the first element has an index of 0, the second has an index of 1, and so on.


<?php

// Sample array

$fruits = array('apple', 'banana', 'cherry');



// Retrieve the second element (banana)

$secondFruit = $fruits[1];



// Output the result

echo "The second fruit is: $secondFruit";

?>

Iterating Through Arrays with foreach

The `foreach` loop provides a convenient way to traverse all elements of an array, making it ideal for scenarios where you need to access each value sequentially.


<?php

// Sample array

$colors = array('red', 'green', 'blue');



// Iterate through each element

foreach ($colors as $color) {

    echo "Color: $color\n";

}

?>

Extracting Values with array_column() Function

When dealing with multidimensional arrays, the array_column() function proves invaluable. It allows you to extract values from a specific column in an array of arrays.


<?php

// Sample multidimensional array

$students = array(

    array('name' => 'Alice', 'grade' => 'A'),

    array('name' => 'Bob', 'grade' => 'B'),

    array('name' => 'Charlie', 'grade' => 'C')

);



// Retrieve all grades using array_column()

$grades = array_column($students, 'grade');



// Output the result

print_r($grades);

?>

Unpacking Array Values with list()

The `list()` construct in PHP provides a way to assign variables as if they were an array. This can be useful when dealing with arrays where you know the order of elements.