Php-implemented CSS update class instance

Php-implemented CSS update class instance

The CSSUpdate. class. php class file is as follows:

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<? Php /** Css update class: updates the image version in the css file. * Date: 2013-02-05 * Author: fdipzone * Ver: 1.1 * * Func: * Update (); * * Ver: 1.1 added the search_child parameter to traverse subfolders. */ Class CSSUpdate { Private $ cs1_pl_path = null; Private $ css_path = null; Private $ replacetags = array (); Private $ search_child = false; Private $ convert_num = 0; Private $ is_ready = 0; /** Initialization * @ Param String $ csstmpl_path css template path * @ Param String $ css_path css target path * @ Param Array $ replacetags the image type to be replaced * @ Param boolean $ search_child: whether to traverse subfolders. The default value is false. */ Public function _ construct ($ cs1_pl_path, $ css_path, $ replacetags = array (), $ search_child = false ){ If (! Is_dir ($ cs1_pl_path) |! Is_dir ($ css_path) |! $ Replacetags ){ $ This-> is_ready = 0; } Else { $ This-> cs1_pl_path = $ cs1_pl_path; $ This-> css_path = $ css_path; $ This-> replacetags = $ replacetags; $ This-> search_child = $ search_child; $ This-> is_ready = 1; } } /** Update the css file */ Public function update (){ If ($ this-> is_ready = 0 ){ $ This-> response ('csstmpl or csspath or replacetags error '); Return ''; } $ This-> traversing ($ this-> cs1_pl_path ); $ This-> response ('covert num: '. $ this-> convert_num ); } /** Traverse folders * @ Param String $ path file path */ Private function traversing ($ path ){ $ Handle = opendir ($ path ); While ($ file = readdir ($ handle ))! = False ){ If ($ file! = '..' & $ File! = '.'){ $ Curfile = $ path. '/'. $ file; If (is_dir ($ curfile) {// folder If ($ this-> search_child) {// You Need to traverse subfolders. $ This-> traversing ($ curfile ); } } Elseif ($ this-> checkExt ($ curfile) {// css file $ Dfile = str_replace ($ this-> csstmpl_path, $ this-> css_path, $ curfile ); $ This-> create ($ curfile, $ dfile ); $ This-> response ($ curfile. 'convert to '. $ dfile. 'success '); $ This-> convert_num ++; } } } Closedir ($ handle ); } /** Check the file suffix */ Private function checkExt ($ file ){ $ Name = basename ($ file ); $ Namefrag = explode ('.', $ name ); If (count ($ namefrag)> = 2 ){ If (strtolower ($ namefrag [count ($ namefrag)-1]) = 'css ') {// css File Return true; } } Return false; } /** Replace the template content and write it to csspath * @ Param String $ tmplfile Template File * @ Param String $ dfile target file */ Private function create ($ tmplfile, $ dfile ){ $ Css_content = file_get_contents ($ tmplfile ); Foreach ($ this-> replacetags as $ tag ){ $ Css_content = str_replace ($ tag, $ tag ."? ". Date ('ymdhis '), $ css_content ); } If (! Is_dir (dirname ($ dfile) {// generate the target path Mkdir (dirname ($ dfile), 0755, true ); } File_put_contents ($ dfile, $ css_content, true ); } /** Output */ Private function response ($ content ){ Echo $ content. "<br> "; } } ?>

The demo sample program is as follows:

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<? Php Require_once "CSSUpdate. class. php "; Define ('root _ path', dirname (_ FILE __)); $ Css_path = ROOT_PATH. '/css '; $ Cs1_pl_path = ROOT_PATH. '/csstmpl '; $ Replacetags = array('.png ', '.jpg', '.gif '); $ Cssobj = new CSSUpdate ($ cs1_pl_path, $ css_path, $ replacetags ); $ Cssobj-> update (); ?>