[TYPO3-dev] behaviour of t3lib_div::testInt has been changed

[Franz Holzinger]

Hello,

I have observed that the behaviour of the function t3lib_div::testInt 
has been changed.
When I test a string '10.', then the result is TRUE, but it should be 
FALSE. This is different to former versions of TYPO3, where 
t3lib_div::testInt('10.') has returned FALSE.

PHP code to check this:

debug ($tmp = t3lib_div::testInt('10.'), 'test of 
t3lib_div::testInt(\'10.\')');

$var = '10';
$tmp = ((string)intval($var) == $var);
debug ($tmp, 'a) (string)intval('.$var.') == '.$var);

$var = '10.';
$tmp = ((string)intval($var) == $var);
debug ($tmp, 'b) (string)intval('.$var.') == '.$var);

$var = '10';
$tmp = ((string)intval($var) === $var);
debug ($tmp, 'c) (string)intval('.$var.') === '.$var);

$var = '10.';
$tmp = ((string)intval($var) === $var);
debug ($tmp, 'd) (string)intval('.$var.') === '.$var);



	/**
	 * Tests if the input can be interpreted as integer.
	 *
	 * @param mixed Any input variable to test
	 * @return boolean Returns true if string is an integer
	 */
	public static function testInt($var) {
		return (string)intval($var) == $var;
	}

This should be:

	/**
	 * Tests if the input can be interpreted as integer.
	 *
	 * @param mixed Any input variable to test
	 * @return boolean Returns true if string is an integer
	 */
	public static function testInt($var) {
		return (string)intval($var) === $var;
	}


Is this change intended?
If yes, then some TYPO3 extensions need modifications for TYPO3 4.5.
There has been a change:

http://forge.typo3.org/projects/typo3v4-core/repository/revisions/8586/diff

- Franz