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<?php function is_leap_year(int $year) :bool { return $year % 4 == 0 and ($year % 100 != 0 or $year % 400 == 0); } $year = 2016; var_dump(is_leap_year($year)); # true var_dump( (bool) date('L', $year)); $year = 2018; var_dump(is_leap_year($year) === date('L', $year)); # false var_dump( (bool) date('L', $year));
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
bool(true) bool(false) bool(false) bool(false)
Output for 5.6.0 - 5.6.40
Parse error: syntax error, unexpected ':', expecting '{' in /in/LU85M on line 3
Process exited with code 255.

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