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<?php function gmp_base_convert($numStr,$base){ $gnum = gmp_init($numStr); return gmp_strval($gnum,$base); } $binary = gmp_base_convert("-65",2); echo "$binary (binary)"; $i = intval($binary,2); $decimal = gmp_base_convert($i,10); echo "\n$decimal (decimal)"; echo @gmp_base_convert("0.5",16); echo "\n",gmp_base_convert("2a4",16);

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