PHP Arrays
PHP Arrays
In PHP, an array is a variable that can hold multiple values. Arrays can be indexed numerically or by a string, and can hold values of different data types.
Here’s an example of creating an indexed array in PHP:
$fruits = array("apple", "banana", "cherry", "date");
In this example, we create an array called $fruits that contains four elements, indexed from 0 to 3.
Here’s an example of creating an associative array in PHP:
$person = array(
"name" => "John",
"age" => 30,
"email" => "john@example.com"
);
In this example, we create an array called $person that has three elements, indexed by strings.
We can access array elements using their index or key, like this:
echo $fruits[1]; // Outputs "banana"
echo $person["name"]; // Outputs "John"
We can also use loops to iterate over the elements in an array:
foreach ($fruits as $fruit) {
echo $fruit . " ";
}
// Outputs: apple banana cherry date
PHP provides a variety of built-in functions for working with arrays, such as count(), sort(), array_push(), array_pop(), array_shift(), array_unshift(), array_merge(), array_intersect(), and array_diff().