in_array在Laravel 5中无法正常工作

Question

in_array function is returning 1 if values exists, otherwise it returns an empty string. I am expecting it to return true or false . Can someone please help me with this?

Answer 1

In PHP the integer value 1 is converted to true , check out the documentation on booleans in PHP here .

You could use it as a boolean like so

$arrBoolean = in_array("needle", $arr);
if ($arrBoolean) {
    // Code
}

If you want it to say true or false you could do this

$arrBoolean = in_array("needle", $arr) ? 'True' : 'False';
echo($arrBoolean);

However, if you do that, then they are String representations of a boolean and do not actually work as a boolean, they will be just Strings.