获取当前目录下所有php文件内的函数名

$dir =  dirname(__file__);

$files = scandir($dir);

foreach($files as $name){

    if($name == '.' || $name == '..'){
        continue;
    }

    $title = preg_replace("/controller.*?php/",'',$name);

    $file = fopen($name,"r");

    $content = array();

    while(!feof($file)){

        $line_content = fgets($file);

        preg_match("/public\s+function/", $line_content, $pat_array);

        if(isset($pat_array[0])){

            $line_content = preg_replace("/.*?function\b|\(.*?{|\s+/",'',$line_content);
    
            $content[] = $title.'/'.$line_content;
        }
    }

    fclose($file);

    print_r($content);  
}