Variable handling Functions
PHP Manual

is_float

Finds whether the type of a variable is float

Description

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.

Return Values

Returns TRUE if var is a float, FALSE otherwise.

Examples

Example #1 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_bool
  • is_int
  • is_numeric
  • is_string
  • is_array
  • is_object