id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
19590	Warnings when unregistering core taxonomies and post types	xmarcos		"'''number_format_i18n''' (/wp-includes/functions.php, line 155) will raise a warning when the first parameter ''$number'' is not a double/float, which happens when it receives the value 0.

The error only shows up in the dashboard with a locale active (es_ES) in this case, screenshot attached.

The fix would be to cast the received value to float. 
 
Current function,


{{{
function number_format_i18n( $number, $decimals = 0 ) {
	global $wp_locale;
	$formatted = number_format( $number, absint( $decimals ), $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] );
	return apply_filters( 'number_format_i18n', $formatted );
}
}}}

Fix,

{{{
function number_format_i18n( $number, $decimals = 0 ) {
	global $wp_locale;
	$formatted = number_format( (float) $number, absint( $decimals ), $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] );
	return apply_filters( 'number_format_i18n', $formatted );
}
}}}

It's the first bug i report here, so correct me if I'm doing it wrong.
"	defect (bug)	new	normal	Future Release	Taxonomy	3.3	normal		has-patch	xmarcos@… seancojr