is_numeric(NAN) ? true
NAN == 0 ? false
NAN == 1 ? false
NAN === 0 ? false
NAN === 1 ? false
NAN == NAN ? false
NAN === NAN ? false
(int) NAN = -9223372036854775808
Output for 4.3.0 - 4.3.5
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 3
is_numeric(NAN) ? false
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 4
NAN == 0 ? true
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 5
NAN == 1 ? false
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 6
NAN === 0 ? false
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 7
NAN === 1 ? false
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 8
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 8
NAN == NAN ? true
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 9
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 9
NAN === NAN ? true
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/mZ2fP on line 10
(int) NAN = 0