I have a strong need to make something using PHP, with the help of which it will be possible to quickly determine the distance between two points on the map by GPS coordinates. For those who are a bit out of the loop – let me clarify that the main difficulty of such a task is that we need to determine the distance between two points on a sphere, not on a plane. Therefore, we need (there are analogs, but I prefer to use) the Haversine method. Continue reading How can I determine the distance between two points on a map using GPS coordinates?
Category Archives: PHP
How to send data from an html form to Telegram?
Hi everyone! Today we are going to understand how to send data from html form to Telegram? Continue reading How to send data from an html form to Telegram?
LUNA ALGORITHM: CHECKING THE VALIDITY OF CREDIT CARD NUMBERS
In the world of electronic payments and online transactions where security is paramount, credit card validation algorithms play an important role. One of the most widely used algorithms, which helps not only to prevent errors when entering card numbers, but also to detect possible fraud attempts, is the Luhn algorithm, also known as the “Luhn algorithm”. Continue reading LUNA ALGORITHM: CHECKING THE VALIDITY OF CREDIT CARD NUMBERS
HOW TO FIND THE CHAT ID OF A GROUP OR CHANNEL IN TELEGRAM?
Hello! The burning question today: How to find out the chat id of a group or channel in Telegram? There are two answers to it 🙂 Continue reading HOW TO FIND THE CHAT ID OF A GROUP OR CHANNEL IN TELEGRAM?
PHP – how to save a file to a folder on the server?
PHP – how to save a file to a folder on the server? A simple task – but … is it so simple, especially for a beginner? Continue reading PHP – how to save a file to a folder on the server?