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run code in 150+ php & hhvm versions
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<?php $a = new DateTime('2011-01-01'); $b = new DateTime(); var_dump($a->diff($b)->days);
based on smPmL
Output for 5.3.0 - 5.4.32, 5.6.28, 7.0.14 - 7.1.0
int(1376)
Output for 7.0.6
int(1949)
Output for 5.6.14, 7.0.5
int(1918)
Output for 7.0.4
int(1895)
Output for 7.0.3
int(1903)
Output for 7.0.2
int(1907)
Output for 7.0.1
int(1908)
Output for 7.0.0
int(1911)
Output for 5.6.21
int(1948)
Output for 5.6.20
int(1925)
Output for 5.6.19
int(1892)
Output for 5.6.18
int(1900)
Output for 5.6.17
int(1904)
Output for 5.6.16
int(1913)
Output for 5.6.15
int(1914)
Output for 5.6.13
int(1931)
Output for 5.6.12
int(1935)
Output for 5.6.11
int(1939)
Output for 5.6.10
int(1941)
Output for 5.6.9
int(1943)
Output for 5.6.8
int(1945)
Output for 5.5.35
int(1968)
Output for 5.5.34
int(1927)
Output for 5.5.33
int(1893)
Output for 5.5.32
int(1902)
Output for 5.5.31
int(1905)
Output for 5.5.30
int(1917)
Output for 5.5.29
int(1932)
Output for 5.5.28
int(1937)
Output for 5.5.27
int(1938)
Output for 5.5.26
int(1942)
Output for 5.5.25
int(1944)
Output for 5.5.24
int(1969)
Output for 5.4.45
int(1724)
Output for 5.4.43 - 5.4.44
int(1689)
Output for 5.4.39 - 5.4.42
int(1650)
Output for 5.4.34 - 5.4.38
int(1534)
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined method DateTime::diff() in /in/YZClZ on line 6
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/YZClZ on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_OBJECT_OPERATOR in /in/YZClZ on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_OBJECT_OPERATOR in /in/YZClZ on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/YZClZ on line 6
Process exited with code 255.