In this article, We’ll see what is the difference between is_int(), is_integer() and is_numeric() in php?
Above functions looks like similar, but there is a difference.
is_int(): It is used to check the type of a variable is integer.
is_integer(): alias of is_int(). It is also used to test whether the type of the specified variable is an integer or not.
is_numeric(): It is used to check the variable is a number or a numeric string.
Let’s see the example:
$variable = "12345"; echo is_int($variable); // return false echo is_integer($variable); // return false echo is_numeric($variable); // return true
$variable is a string of numbers, not an integer value.
is_int() return false because it’s not an integer value, it’s a string.
is_numeric() return true because it’s a numeric string.
$variable2 = 123; echo is_int($variable2); // return true echo is_integer($variable2); // return true echo is_numeric($variable2); // return true
$variable2 is a integer value, not a string of numbers.
is_int($variable2) return true because it’s an integer value, not a string.
is_numeric($variable2) return true because it’s a number.
That’s it!. Please share your thoughts or suggestions in the comments below.
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