PHP cal_days_in_month Function: Returns Number of Days in a Month for a Given Calendar
The article explains PHP's cal_days_in_month function, detailing its purpose, parameters (calendar, month, year), return value, and provides a complete example showing how to retrieve and display the number of days in a specific month of a given year.
The cal_days_in_month function in PHP returns the number of days in a specific month of a given year according to a specified calendar.
Parameters
calendar : The calendar system to use (e.g., CAL_GREGORIAN).
month : The month number (1‑12) within the chosen calendar.
year : The year number within the chosen calendar.
Return value : An integer representing the number of days in the specified month.
Example
<?php
$num = cal_days_in_month(CAL_GREGORIAN, 8, 2003);
// 31
echo "There was $num days in August 2003";
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