PHP Tutorial - PHP is_int() function

is_int(value) tells if a value is an integer.

Syntax

PHP is_int() function has the following syntax.

is_int(value)

Parameter

value is the variable being type checked.

Return

PHP is_int() function returns true if value is an integer.

Example

Is it an integer value?


<?php
$values = array(2, "2", 2.5, "2.5", null, true);
foreach ($values as $value) {
    echo "is_int(";
    var_export($value);
    echo ") = ";
    var_dump(is_int($value));
}
?>

The code above generates the following result.