PHP is_infinite()Function
Examples
Determine whether a value is infinite:
echo is_infinite(2) . "<br>";
echo is_infinite(log(0)) . "<br>";
echo is_infinite(2000);
Run Example »
Definition and Usage
The is_infinite() function determines whether a value is infinite.
If the specified value is finite, this function returns TRUE (1). Otherwise, it returns FALSE (no output).
If the value is within the range allowed by PHP floating point numbers on the local platform, then the value is infinite.
Syntax
is_infinite(value);
| Parameters | Description |
|---|---|
| value | Required. Specifies the value to check. |
Technical Details
| Return Value: | Ifvalueit is an infinite value, returns TRUE. Otherwise returns FALSE. |
|---|---|
| Return Type: | Boolean |
| PHP Version: | 4.2+ |
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