php check if is integer a number code example

Example 1: php is numeric

//is_numeric — Finds whether a variable is a number or a numeric string
is_numeric ( $variable ); // returns true or false

Example 2: php check if input is int

$a = 5; //returns true
$a = "5"; //returns false
$a = 5.3; //returns false
is_int($a);