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<?php $tests = array( "42", 1337, 0x539, 02471, 0b10100111001, 1337e0, "0x539", "02471", "0b10100111001", "1337e0", "not numeric", array(), 9.12222222222222, null, '', ); foreach ($tests as $element) { if (is_numeric($element)) { echo var_export($element, true) . " число", PHP_EOL; } else { echo var_export($element, true) . " НЕ число", PHP_EOL; } }
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