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<?php var_dump(INF === INF); var_dump(NAN === NAN); var_dump(INF == INF); var_dump(NAN == NAN); var_dump(INF - INF); var_dump(NAN - NAN); var_dump(INF + INF); var_dump(NAN + NAN);
Output for 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 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
bool(true) bool(false) bool(true) bool(false) float(NAN) float(NAN) float(INF) float(NAN)
Output for 4.3.6 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
bool(true) bool(false) bool(false) bool(false) float(NAN) float(NAN) float(INF) float(NAN)
Output for 4.3.0 - 4.3.5
Notice: Use of undefined constant INF - assumed 'INF' in /in/Y41KW on line 2 Notice: Use of undefined constant INF - assumed 'INF' in /in/Y41KW on line 2 bool(true) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/Y41KW on line 3 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/Y41KW on line 3 bool(true) Notice: Use of undefined constant INF - assumed 'INF' in /in/Y41KW on line 5 Notice: Use of undefined constant INF - assumed 'INF' in /in/Y41KW on line 5 bool(true) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/Y41KW on line 6 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/Y41KW on line 6 bool(true) Notice: Use of undefined constant INF - assumed 'INF' in /in/Y41KW on line 8 Notice: Use of undefined constant INF - assumed 'INF' in /in/Y41KW on line 8 int(0) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/Y41KW on line 9 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/Y41KW on line 9 int(0) Notice: Use of undefined constant INF - assumed 'INF' in /in/Y41KW on line 11 Notice: Use of undefined constant INF - assumed 'INF' in /in/Y41KW on line 11 int(0) Notice: Use of undefined constant NAN - assumed 'NAN' in /in/Y41KW on line 12 Notice: Use of undefined constant NAN - assumed 'NAN' in /in/Y41KW on line 12 int(0)

preferences:
292.24 ms | 404 KiB | 397 Q