<?php $float = 0.032; $not_float = "0.03b2"; var_dump(filter_var($float, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION)); var_dump(filter_var($not_float, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION)); var_dump(filter_var($float, FILTER_VALIDATE_FLOAT)); var_dump(filter_var($not_float, FILTER_VALIDATE_FLOAT)); echo "\n\n"; // Showing without FILTER_FLAG_ALLOW_FRACTION flag var_dump(filter_var($float, FILTER_SANITIZE_NUMBER_FLOAT));
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