if(strlen($testValue-0) == strlen($testValue)) {
echo "Is a number";
} else {
echo "Is not a number";
}
Or, in one line: (strlen($testValue-0) == strlen($testValue) ? 1 : 0)
Kind of a kludge, but it seems to work for positive, negative and decimals.
On Thursday, June 12, 2003, at 04:13 PM, Alex Earl wrote:
Jumping in a little late here, but what about is_numeric()? Haven't tried it, but the php manual for is_int says: Note: To test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric().
The problem with is_numeric() is that something like "4e4" comes up as true, because it could be construed as a HEX value.
Alex
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