counting the number of times a script is executed [closed]

Answer 1

Nothing "inside PHP" itself will persist anything across different page loads. You need to store the value somewhere "external", e.g.:

• write it to a file
• write it to a database
• store it in a memcache or other kind of cache
• send it to yourself in an email
• burn it into the screen of the computer and use an elaborate video camera and OCR setup to read it back
• ...
• maybe: sessions