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<?php function nextMonth($date, $increment) { $firstOfDateMonth = \DateTime::createFromFormat('Y-m-01', $date); $thirtyFirstOfDateMonth = \DateTime::createFromFormat('Y-m-t', $date); var_dump($thirtyFirstOfDateMonth); $thirtyFirstOfDateMonth = $thirtyFirstOfDateMonth->format('t'); $thirtyFirstOfNextMonth = clone $firstOfDateMonth; $thirtyFirstOfNextMonth->modify('+' . (int) $increment . ' month'); $thirtyFirstOfNextMonth = $thirtyFirstOfNextMonth->format('t'); $dayOfDateMonth = \DateTime::createFromFormat('Y-m-d', $date); $dayOfDateMonth = $dayOfDateMonth->format('d'); $dt = \DateTime::createFromFormat('Y-m-d', $date); $dt->modify('+' . (int) $increment . ' month'); if ($thirtyFirstOfNextMonth < $thirtyFirstOfDateMonth && $thirtyFirstOfNextMonth < $dayOfDateMonth) { $dt = clone $firstOfDateMonth; $dt->modify('+' . (int) $increment . ' month +' . $thirtyFirstOfNextMonth); } return $dt->format('Y-m-d'); } echo nextMonth('2009-12-31', 2),"\n"; echo nextMonth('2010-01-31', 1),"\n"; echo nextMonth('2010-01-05', 1),"\n"; echo nextMonth('2010-12-05', 1),"\n";
Output for 8.3.0 - 8.3.6
bool(false) Fatal error: Uncaught Error: Call to a member function format() on false in /in/dSLIu:8 Stack trace: #0 /in/dSLIu(26): nextMonth('2009-12-31', 2) #1 {main} thrown in /in/dSLIu on line 8
Process exited with code 255.
Output for 7.3.0 - 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
bool(false) Fatal error: Uncaught Error: Call to a member function format() on bool in /in/dSLIu:8 Stack trace: #0 /in/dSLIu(26): nextMonth('2009-12-31', 2) #1 {main} thrown in /in/dSLIu on line 8
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
bool(false) Fatal error: Uncaught Error: Call to a member function format() on boolean in /in/dSLIu:8 Stack trace: #0 /in/dSLIu(26): nextMonth('2009-12-31', 2) #1 {main} thrown in /in/dSLIu on line 8
Process exited with code 255.
Output for 5.6.0 - 5.6.40
bool(false) Fatal error: Call to a member function format() on boolean in /in/dSLIu on line 8
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38
bool(false) Fatal error: Call to a member function format() on a non-object in /in/dSLIu on line 8
Process exited with code 255.
Output for 5.2.10 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 5 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 6 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 14 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 17 Fatal error: Call to undefined method DateTime::createFromFormat() in /in/dSLIu on line 5
Process exited with code 255.
Output for 5.2.0 - 5.2.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 5 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 6 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 14 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 17 Fatal error: Call to undefined method DateTime::createfromformat() in /in/dSLIu on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 5 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 6 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 14 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 17 Fatal error: Class 'DateTime' not found in /in/dSLIu on line 5
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 5 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 6 Parse error: syntax error, unexpected T_VARIABLE in /in/dSLIu on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 5 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 6 Parse error: parse error, unexpected T_VARIABLE in /in/dSLIu on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 5 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/dSLIu on line 6 Parse error: parse error in /in/dSLIu on line 10
Process exited with code 255.
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