What Are PHP Arrays?

• In  PHP, we implement the  array of an assigned Map.
• A map is a conceptual data type of key-value pairs, we can consider it as an interface.
• We can implement a map in various ways For Example: HashTable,  HashMap, Dictionary.
• To know the depth of understanding, We can check the PHP source for Array and HashTable.
• We can use the array to save the combination of data as per the scenarios and assign them to a particular variable name.
• Each array item we can assign as a key and value pair.

Below is the example we can consider as key and value pair:

Source

Note: we categorize Arrays as “indexed array” and “associative array” based on the key stipulation. The Indexed array has a default index that starts with ‘0’.The associative array includes the user-defined key index. We can use the keys for strings and natural numbers.

How to create an Array in PHP?

Example:

• An empty array

#php array length #php