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<?php var_dump("3oranges" == "3bananas"); // false var_dump(NULL, is_numeric(NULL)); var_dump("3oranges" + NULL == "3bananas" + NULL); // true
Output for 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(false) NULL bool(false) Warning: A non-numeric value encountered in /in/nJGn9 on line 4 Warning: A non-numeric value encountered in /in/nJGn9 on line 4 bool(true)
Output for 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
bool(false) NULL bool(false) Notice: A non well formed numeric value encountered in /in/nJGn9 on line 4 Notice: A non well formed numeric value encountered in /in/nJGn9 on line 4 bool(true)
Output for 4.3.0 - 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, 7.3.32 - 7.3.33
bool(false) NULL bool(false) bool(true)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/nJGn9 on line 4
Process exited with code 255.

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