<?php
/**
* Check if a given date is the first Monday of the month
*
* @param \DateTime $date
* @return bool
*/
function isFirstSundayOfMonth(DateTime $date) {
return (int)$date->format('d') <= 7 && $date->format('l') === 'Sunday';
}
$day = new DateTime();
var_dump(isFirstMondayayOfMonth($day));
Fatal error: Uncaught Error: Call to undefined function isFirstMondayayOfMonth() in /in/GD436:13
Stack trace:
#0 {main}
thrown in /in/GD436 on line 13
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Fatal error: Uncaught Error: Call to undefined function isFirstMondayayOfMonth() in /in/GD436:13
Stack trace:
#0 {main}
thrown in /in/GD436 on line 13
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to undefined function isFirstMondayayOfMonth() in /in/GD436 on line 13
Process exited with code 255.