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I did

return is_numeric($text)&&!(is_int(strpos($text,".",0)));

I did at the end of the function to check for numeric data.

return is_numeric($text)&&!(is_int(strpos($text,".",0)));

It will first check if it is numeric then check if there is no decimal in the string by checking if it found a position. If it did the returned position is an int so is_int() will catch it.

(strpos($text,".",0)==FALSE) would also work based on the strpos manual but sometimes the function seems to send nothing at all back like

echo (strpos($text,".",0));

could be nothing and the ==FALSE is needed.