Hi I am quite new in PHP and I wanna know how can I check what type of variable the user entered
For example if the user entered a string return an error.Or if the user entered an integer redirect him to the next html page.
I think you got what I mean.Please help me :-)
Try this
$type = gettype($input);
if($type == 'integer'){
// redirect
}
else{
echo "error";
}
The gettype() function is used to get the type of a variable. for more info read http://www.w3resource.com/php/function-reference/gettype.php
but i suggest use is_numeric() instead of gettype()
$type = is_numeric($input);
if($type){
// redirect
}
else{
echo "error";
}
because gettype treats variable in single quotes or double quotes as string so for gettype '1' is string not integer
Take a look at filter_var. It allows you to test your input as you're describing.
Example assuming that you want to validate it's an int value:
<?php
$input = 'some string';
if (filter_var($input, FILTER_VALIDATE_INT) === false) {
// it's not an int value, return error
}
Oh so ok i used the (is_numeric();)function and it worked thanks to all of you !! :DD
