convert string into float val

[Niyati_1984]

how to convert string into float val ???

[Installer]

Just use it as a float, if the string is a valid float representation. These will give you identical results:

$a = '56.789';
$b = '5.6789e1';
$c = '56789E-4';
echo $a * $b * $c;

$a = 56.789;
$b = 5.6789e1;
$c = 56789E-4;
echo $a * $b * $c;

This manual page (link) says:

The type of a variable is not usually set by the programmer; rather, it is decided at runtime by PHP depending on the context in which that variable is used.

Also see this page.

[NogDog]

If you have some reason that it's type is truly important (such as using a "===" or "!==" comparison) you can use the [man]settype/man or [man]floatval/man function or type cast it with "(float)".