Re: Regex guru needed

On Nov 13, 2004, at 9:44 AM, Tobias Schlitt wrote:

Hi all! I try creating a regex which extracts all function/method prototypes from a PHP file. So far, I went pretty well, besides one problem. The regex below works pretty well, but only the last parameter of a function declaration is extracted. Maybe someone can give me a hint how to get all parameters (into seperate array elements)?

Hard to do the whole match with a single regex, I think. Here's something that works for on my test case: <?php $data = file_get_contents($argv[1]); $prot_re = '/function\s+(\w+)\s*\((.*?)\)/ims'; $arg_re = '/(?:(\w+)\s+)?(\$\w+)(?:\s*=\s*(\w+))?/'; preg_match_all($prot_re, $data, $m, PREG_SET_ORDER); foreach($m as $func_m) {

        $args = array();
        if(preg_match('/\S/', $func_m[2])) {
                $args_t = array_map('trim', split(',', $func_m[2]));
                foreach($args_t as $arg) {
                        preg_match($arg_re, $arg, $arg_m);
                        $args[] = array ('typehint' => $arg_m[1],
                                         'name'     => $arg_m[2],
                                         'default'  => @$arg_m[3]);
                }
        }
        $functions[]= array( 'name' => $func_m[1], 'args' => $args);

} print_r($functions); ?> George