I need to (check) if my input is float but I cannot get it to work.
JavaScript
x
$input_number = trim($_POST['number']);
if(empty($input_number)){
$input_number_err = 'an error msg';
} elseif(is_float($input_number)){
$number = $input_number;
} else{
$input_number_err = 'an error msg';
}
I also tried to add 0 inside my if statement but nothing changed
JavaScript
elseif(is_float($input_number + 0))
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Answer
You should make use of floatval()
here, to convert your string to a float, if possible.
As an example:
JavaScript
$input_number = trim($_POST['number']);
if (empty($input_number)) {
$input_number_err = 'an error msg';
}
elseif (floatval($input_number)) {
$number = $input_number;
}
else {
$input_number_err = 'an error msg';
}
// Feedback
if (isset($number)) {
echo 'Your float is: ' . $number;
}
elseif (isset($input_number_err)) {
echo 'Your input is not a float: ' . $input_number_err;
}