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<?php var_dump(sprintf("%s","F")); var_dump(intval("FFFF",16)); var_dump(floatval("FF",16));
based on 0cR7K
Output for 5.4.0 - 7.2.0
string(1) "F" int(65535) Warning: floatval() expects exactly 1 parameter, 2 given in /in/lb58q on line 5 NULL