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run code in 150+ php & hhvm versions
Bugs & Features
<?php /** * Check if a given date is the first Monday of the month * * @param \DateTime $date * @return bool */ function isFirstMondayayOfMonth(\DateTime $date) { return (int)$date->format('d') <= 7 && $date->format('l') === 'Monday'; } $day = new \DateTime('2014/3/10'); var_dump(isFirstMondayayOfMonth($day)); $day = new \DateTime('2014/3/3'); var_dump(isFirstMondayayOfMonth($day));
Output for 5.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
bool(false) bool(true)
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.2.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qaiI1 on line 8 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qaiI1 on line 13 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qaiI1 on line 16 bool(false) bool(true)
Output for 5.0.0 - 5.1.6
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qaiI1 on line 8 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qaiI1 on line 13 Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qaiI1 on line 16 Fatal error: Class 'DateTime' not found in /in/qaiI1 on line 13
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qaiI1 on line 8 Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/qaiI1 on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qaiI1 on line 8 Parse error: parse error, unexpected T_STRING, expecting ')' in /in/qaiI1 on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/qaiI1 on line 8 Parse error: parse error, expecting `')'' in /in/qaiI1 on line 8
Process exited with code 255.