note 58824 added to language.types.float

Be careful when using float values in strings that are used as code later, for example when generating JavaScript code or SQL statements. The float is actually formatted according to the browser's locale setting, which means that "0.23" will result in "0,23". Imagine something like this: $x = 0.23; $js = "var foo = doBar($x);"; print $js; This would result in a different result for users with some locales. On most systems, this would print: var foo = doBar(0.23); but when for example a user from Germany arrives, it would be different: var foo = doBar(0,23); which is obviously a different call to the function. JavaScript won't state an error, additional arguments are discarded without notice, but the function doBar(a) would get 0 as parameter. Similar problems could arise anywhere else (SQL, any string used as code somewhere else). The problem persists, if you use the "." operator instead of evaluating the variable in the string. So if you REALLY need to be sure to have the string correctly formatted, use number_format() to do it! ---- Manual Page -- http://www.php.net/manual/en/language.types.float.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+58824 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+58824&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+58824&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+58824&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+58824&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+58824&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+58824&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+58824&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+58824&report=yes Search -- http://master.php.net/manage/user-notes.php