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<?php var_dump(is_numeric("1e34d5")); var_dump("1e34d5"); var_dump("1e34d5" + 1);
based on 7DBh7
Output for 7.1.0
bool(false) string(6) "1e34d5" Notice: A non well formed numeric value encountered in /in/vuAWd on line 5 float(1.0E+34)
Output for 4.3.3 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.14
bool(false) string(6) "1e34d5" float(1.0E+34)
Output for 4.3.0 - 4.3.2
bool(false) string(6) "1e34d5" float(1.E+34)