What does date("0") return in PHP?
The issue is that the date() function in PHP expects a valid format specifier as its first argument, but "0" is not a valid format specifier. To solve this issue, you should provide a valid format specifier to the date() function.
// Correct way to use date() function with a valid format specifier
echo date("Y-m-d H:i:s"); // Outputs the current date and time in the format YYYY-MM-DD HH:MM:SS