PHP function is_numeric()
Finds whether a variable is a number or a numeric string
Availability in PHP 4.0
Finds whether a variable is a number or a numeric string
Parameters
| Parameter | Data type | Default value | Note |
|---|---|---|---|
$var |
mixed |
not | The variable being evaluated. |
Return values
bool
true if var is a number or a numeric string, false otherwise.
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