note 102592 deleted from language.operators.comparison by danbrown

Note Submitter: erik[dot]NOSPAMdercole[at]gmail[dot]com 

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<?php
	$b = "10431441702500000443" == "10431441702500000043";

	var_dump($b);
?>

Could anyone tell me why $b is TRUE? The comparison is between 2 (different) strings, how is it possibile?
If I use "===" operator the result is FALSE (correct).