此函数是 is_float() 的别名函数。
charlescbe16 at gmail dot com (2010-07-24 00:53:15)
is_float — Finds whether a variable is a floatDescriptionbool is_float ( mixed var )
Finds whether the given variable is a float.
example:
<?php
$float=50.97;
if(is_float($float))
{
echo $float."is a float";
}
else
{
echo $float. "is not a float";
}
?>
output:
50.97 is a float