public function testParseInteger()
{
$this->assertEquals(Validation::parseInteger(1), 1);
$this->assertEquals(Validation::parseInteger(0), 0);
$this->assertEquals(Validation::parseInteger(-1), -1);
$this->assertEquals(Validation::parseInteger("1"), 1);
$this->assertEquals(Validation::parseInteger("0"), 0);
$this->assertEquals(Validation::parseInteger("-1"), -1);
$this->assertNull(Validation::parseInteger("-"));
$this->assertNull(Validation::parseInteger("true"));
$this->assertNull(Validation::parseInteger("false"));
$this->assertNull(Validation::parseInteger(true));
$this->assertNull(Validation::parseInteger(false));
$this->assertNull(Validation::parseInteger(4.5));
$this->assertNull(Validation::parseInteger('4.5'));
$this->assertNull(Validation::parseInteger(null));
}
/**
* Returns request variable as explicit integer value, or null if the request variable is not set or does not
* represent a float value.
* @param string $key Key in the collection storing the value to look up.
* @param int $index Index of the array to look up, if the variable's value is an array.
* @param array $src Array to search for $key, e.g. $_GET or $_POST
* @return int|null|string
*/
public static function collectIntegerRequestVar($key, $index = null, $src = null)
{
$value = Validation::_parseInput(FILTER_VALIDATE_INT, $key, $index, $src);
return Validation::parseInteger($value);
}
