id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
23519,esc_url() mangles array format query variables in URLs,johnbillion,,"`http://example.com/?test[foo]=bar` is a valid URL, but `esc_url()` mangles it into `http://example.com/?testfoo=bar`.

To reproduce:

{{{
$url = 'http://example.com/?test[foo]=bar';

echo '<pre>';
var_dump( $url );
var_dump( esc_url( $url ) );
echo '</pre>';
}}}

Also affects array format query variables without named keys, eg. `foo[]=bar`.

Tested back to 3.4. May affect earlier versions.",defect (bug),closed,normal,,Formatting,3.4,normal,duplicate,,