In this tutorial, you shall learn how to convert an integer value to a floating point value in PHP, using typecasting, or floatval() function, with the help of example programs.

PHP – Convert Integer to Float

To convert an integer type value to a floating point type value in PHP, you can use Type Casting technique or PHP built-in function floatval().

Method 1: Type Casting

To convert integer to float using Type Casting, provide the literal (float) along with parenthesis before the integer value. This expression returns a float value. We can store it in a variable or use it as a part of another expression.

The syntax to type-cast integer to floating point value is

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$float_value = (float) $int_value;

In the following program, we take an integer value in $n, convert this integer value to a float value using type-casting, and store the result in $f.

PHP Program

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<?php
  $n = 268;
  $f = (float) $n;
  echo "float value : " . $f;
?>

Output

php - convert int to float using Type Casting

Method 2: floatval()

To convert integer value to floating point value using PHP built-in function floatval(), pass the integer value as argument to the function. The function returns a floating point value created from the given argument.

The syntax to use floatval() to convert integer number to floating point number is

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$float_value = floatval( $integer_value );

In the following program, we take an integer value in $n, convert it to float and store the result in $f.

PHP Program

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<?php
  $n = 268;
  $f = floatval($n);
  echo "float value : " . $f;
?>

Output

php - convert int to float using floatval()

Conclusion

In this PHP Tutorial, we learned how to convert an integer number to a floating point number using type-casting or floatval() function.