This article provides a detailed explanation of how to call an API interface, send data requests, and process response data in PHP development. By using the cURL library to send HTTP requests and handling JSON responses, it helps developers master this essential skill.

The ord() function returns the ASCII value of a character, while the array_map() function allows applying a callback function to each element in an array. When we need to process every character in a string in bulk and get their ASCII values, these two functions can be combined. This article provides a detailed explanation of how to achieve this.