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<?php var_dump(NAN); // float NAN var_dump(NAN == NAN); // boolean true var_dump(NAN === NAN); // boolean true var_dump(is_nan(NAN)); // boolean true var_dump(NAN == 12); // boolean true var_dump(NAN === 12); // boolean false var_dump(is_nan(12)); // boolean false var_dump(NAN == 12.4); // boolean true var_dump(NAN === 12.4); // boolean true var_dump(is_nan(12.4)); // boolean false var_dump(NAN == NULL); // boolean true var_dump(NAN === NULL); // boolean false var_dump(is_nan(NULL)); // boolean false var_dump(NAN == 'K<WNPO'); // boolean true var_dump(NAN === 'K<WNPO'); // boolean false
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
float(NAN) bool(false) bool(false) bool(true) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) Deprecated: is_nan(): Passing null to parameter #1 ($num) of type float is deprecated in /in/EGULp on line 18 bool(false) bool(false) bool(false)
Output for 4.3.6 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
float(NAN) bool(false) bool(false) bool(true) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false) bool(false)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/EGULp on line 21
Process exited with code 255.
Output for 4.3.0 - 4.3.5
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 2 string(3) "NAN" Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 4 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 4 bool(true) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 5 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 5 bool(true) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 6 Warning: is_nan() expects parameter 1 to be double, string given in /in/EGULp on line 6 NULL Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 8 bool(false) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 9 bool(false) bool(false) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 12 bool(false) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 13 bool(false) bool(false) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 16 bool(false) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 17 bool(false) bool(false) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 20 bool(false) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/EGULp on line 21 bool(false)
preferences:
253.01 ms | 404 KiB | 370 Q