How to convert a String type to Float type in MySQL/PHP?

Question

I have a string like this:

$foo = "1.3223";

How do I convert $foo into a float ?

Answer 1

尝试投放：

$yourFloat = (float) $foo;

Answer 2

http://sg2.php.net/floatval

$foo = floatval($foo);

Answer 3

使用(float)投射：

$foo = (float) "1.3223";

Answer 4

This would do it:

<?php
$var = '122.34343The';
$float_value_of_var = floatval($var);
echo $float_value_of_var; // 122.34343
?>

Answer 5

Remove the speech marks and PHP should convert into a float. or cast it.