(PHP 4, PHP 5, PHP 7)
Finds whether the type of a variable is float
bool is_float ( mixed $var )
Finds whether the type of the given variable is float.
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().
Parameters:
var
The variable being evaluated.
Returns:
Returns TRUE
if var
is a float, FALSE
otherwise.
Examples:
is_float() example
<?php if (is_float(27.25)) { echo "is float\n"; } else { echo "is not float\n"; } var_dump(is_float('abc')); var_dump(is_float(23)); var_dump(is_float(23.5)); var_dump(is_float(1e7)); //Scientific Notation var_dump(is_float(true)); ?>
The above example will output:
is float bool(false) bool(false) bool(true) bool(true) bool(false)
See also:
is_int() -
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