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<?php function datediffInWeeks($date1, $date2) { if($date1 > $date2) return datediffInWeeks($date2, $date1); $first = DateTime::createFromFormat('Y/m/d', $date1); $second = DateTime::createFromFormat('m/d/Y', $date2); return floor($first->diff($second)->days/7); } var_dump(datediffInWeeks('2018-01-01', '2018-02-09'));// 21 var_dump(datediffInWeeks('6/4/2020', '1/2/2021'));// 21
Output for 8.3.0 - 8.3.4, 8.3.6
Fatal error: Uncaught Error: Call to a member function diff() on false in /in/Hpio2:7 Stack trace: #0 /in/Hpio2(10): datediffInWeeks('2018-01-01', '2018-02-09') #1 {main} thrown in /in/Hpio2 on line 7
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 a member function diff() on false in /in/Hpio2:7 Stack trace: #0 /in/Hpio2(10): datediffInWeeks('2018-01-01', '2018-02-09') #1 {main} thrown in /in/Hpio2 on line 7
Process exited with code 255.
Output for 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Fatal error: Uncaught Error: Call to a member function diff() on bool in /in/Hpio2:7 Stack trace: #0 /in/Hpio2(10): datediffInWeeks('2018-01-01', '2018-02-09') #1 {main} thrown in /in/Hpio2 on line 7
Process exited with code 255.
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33
Fatal error: Uncaught Error: Call to a member function diff() on boolean in /in/Hpio2:7 Stack trace: #0 /in/Hpio2(10): datediffInWeeks('2018-01-01', '2018-02-09') #1 {main} thrown in /in/Hpio2 on line 7
Process exited with code 255.
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