Bug #12477: preg_replace evaluates dollar signs as variables (eg $1,000 becomes ,000)

From: Grant.Walters@walters.co.nz Operating system: Linux and SCO PHP version: 4.0.6 PHP Bug Type: PCRE related Bug description: preg_replace evaluates dollar signs as variables (eg $1,000 becomes ,000) The setup for my templating system: $template=array( "/({PAGETOP})/", "/({PAGENAVBAR})/", "/({PAGEMAIN})/", "/({PAGELINKS})/", "/({PAGESPACE})/", "/({PAGETEXT})/", "/({PAGENEWS})/", "/({PAGEBOTTOM})/", "/({PAGEDATA})/" ); $pagevars=array( "PAGETOP" => get_page($site->page_top), "PAGENAVBAR" => get_page($site->page_top), "PAGEMAIN" => get_page($site->page_main), "PAGELINKS" => get_page($site->page_links),, "PAGESPACE" => get_page($site->page_space), "PAGETEXT" => get_page($site->page_text), "PAGENEWS" => get_page($site->page_news),, "PAGEBOTTOM" => get_page($site->page_bottom), "PAGEDATA" => "" ); $page = "{PAGETOP}{PAGENAVBAR}{PAGEMAIN}{PAGEBOTTOM}"; $page = preg_replace($template,$pagevars,$page); echo $page; Basically each physical page referenced via the get_page function is a text template that may contain HTML, text or variables in the form {VAR}. Eventually content from a database ends up in a variable called PAGEDATA which is in the template stored in the page main variable. The problem: PAGEDATA ends up containing page text and it has something like "would cost around $16,000 to complete" in that text. When the preg_replace is performed, something somewhere is assuming that $16 is a variable (which doesn't exist) and the text ends up as "would cost around ,000 to complete" -- Edit bug report at: http://bugs.php.net/?id=12477&edit=1