![]() It defaults toĭate.sunrise_zenith Common zenith angles Angle Zenith is the angle between the center of the sunĪnd a line perpendicular to earth's surface. See also: fault_latitude longitudeĭefaults to East, pass in a negative value for West. The timestamp of the day from which the sunriseĭefaults to North, pass in a negative value for South. Please show your love and support by sharing this post.Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search To include those, we simply use the hour, minute and second properties available on the DateInterval object and convert them into seconds as shown in the example above. The calculation in the last step does not take into account the hours, minutes and seconds in the date difference (as they're not included in the %a format).Using that, we can convert the number of days into seconds by multiplying it with hours in a day, minutes in an hour, and seconds in a minute (i.e. Using the %r%a format together, we can get the negative/positive number of days.Using the %a formatting character gives us the total number of days between two dates.Using the %r formatting character, adds the minus sign when the result is negative.The calculation works in the following way: $seconds = $daysInSecs + $hoursInSecs + $minsInSecs + $diff->s You can calculate the number of seconds between the two dates in the following way: ![]() Please note that comparing timestamps could lead to problems with dates before 1970 and after 2038.Ĭalculating Number of Seconds Between Two Dates For example:Įcho $end->getTimestamp() - $start->getTimestamp() // output: 284169600 We can simply compare timestamps of two dates to get the difference in seconds. Therefore, you can either get the difference of the timestamps of the two dates or calculate the number of seconds yourself:Ĭomparing Timestamps to Get Number of Seconds Between Two Dates By default there's no method available on the DateTime or DateInterval class to get the difference between two DateTime objects in seconds.
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