search
HomeBackend DevelopmentPHP Tutorial搜索和替换文件或目录的一个好类--很实用

这是个非常有用的程序,可以对文本文件进行特定的搜索,并以特定的文字替换指定的文字,举个例子说如果我这篇文章里有一个字全部打错了,有几十处,要一一找出来修改是件很麻烦的事,用下面这个就可以轻松搞定。--teaman.oso.com.cn
类文件 search_replace.inc


    class search_replace{

        var $find;
        var $replace;
        var $files;
        var $directories;
        var $include_subdir;
        var $ignore_lines;
        var $ignore_sep;
        var $occurences;
        var $search_function;
        var $last_error;

    //以下进行函数定义和设置
     
        function search_replace($find, $replace, $files, $directories = '', $include_subdir = 1, $ignore_lines = array()){

            $this->find      = $find;
            $this->replace     = $replace;
            $this->files      = $files;
            $this->directories   = $directories;
            $this->include_subdir = $include_subdir;
            $this->ignore_lines  = $ignore_lines;

            $this->occurences   = 0;
            $this->search_function = 'search';
            $this->last_error   = '';

        }

    /***************************************
    ** accessor for retrieving occurences.
    ***************************************/
        function get_num_occurences(){
            return $this->occurences;
        }

    //获取最后的错误
        function get_last_error(){
            return $this->last_error;
        }

    //设置FIND变量
        function set_find($find){
            $this->find = $find;
        }

    //设置replace变量
        function set_replace($replace){
            $this->replace = $replace;
        }

    //设置FILE变量
        function set_files($files){
            $this->files = $files;
        }

    //设置目录变量
        function set_directories($directories){
            $this->directories = $directories;
        }

    //设置目录变量 set_include_subdir
        function set_include_subdir($include_subdir){
            $this->include_subdir = $include_subdir;
        }

    //设置ignore_lines变量
        function set_ignore_lines($ignore_lines){
            $this->ignore_lines = $ignore_lines;
        }

    //确定是哪一种搜索方式
        function set_search_function($search_function){
            switch($search_function){
                case 'normal': $this->search_function = 'search';
                        return TRUE;
                        break;

                case 'quick' : $this->search_function = 'quick_search';
                        return TRUE;
                        break;

                case 'PReg' : $this->search_function = 'preg_search';
                        return TRUE;
                        break;

                case 'ereg' : $this->search_function = 'ereg_search';
                        return TRUE;
                        break;

                default   : $this->last_error   = 'Invalid search function specified';
                        return FALSE;
                        break;
            }
        }


    //以下为搜索和替换程序的主文件
        function search($filename){

            $occurences = 0;
            $file_array = file($filename);

            for($i=0; $i                 $continue_flag = 0;
                if(count($this->ignore_lines) > 0){
                    for($j=0; $jignore_lines); $j++){
                        if(substr($file_array[$i],0,strlen($this->ignore_lines[$j])) == $this->ignore_lines[$j]) $continue_flag = 1;
                    }
                }
                if($continue_flag == 1) continue;
                $occurences += count(explode($this->find, $file_array[$i])) - 1;
                $file_array[$i] = str_replace($this->find, $this->replace, $file_array[$i]);
            }
            if($occurences > 0) $return = array($occurences, implode('', $file_array)); else $return = FALSE;
            return $return;

        }

    //使用quick(快速)搜索方法时,没有igonre_lines功能
        function quick_search($filename){

            clearstatcache();

            $file    = fread($fp = fopen($filename, 'r'), filesize($filename)); fclose($fp);
            $occurences = count(explode($this->find, $file)) - 1;
            $file    = str_replace($this->find, $this->replace, $file);

            if($occurences > 0) $return = array($occurences, $file); else $return = FALSE;
            return $return;

        }

    //preg搜索方法不支持ignore_lines
        function preg_search($filename){

            clearstatcache();

            $file    = fread($fp = fopen($filename, 'r'), filesize($filename)); fclose($fp);
            $occurences = count($matches = preg_split($this->find, $file)) - 1;
            $file    = preg_replace($this->find, $this->replace, $file);

            if($occurences > 0) $return = array($occurences, $file); else $return = FALSE;
            return $return;

        }

    //ereg搜索方法也不支持ignore_lines
        function ereg_search($filename){

            clearstatcache();

            $file = fread($fp = fopen($filename, 'r'), filesize($filename)); fclose($fp);

            $occurences = count($matches = split($this->find, $file)) -1;
            $file    = ereg_replace($this->find, $this->replace, $file);

            if($occurences > 0) $return = array($occurences, $file); else $return = FALSE;
            return $return;

        }

    //写新文件
        function writeout($filename, $contents){

            if($fp = @fopen($filename, 'w')){
                fwrite($fp, $contents);
                fclose($fp);
            }else{
                $this->last_error = 'Could not open file: '.$filename;
            }

        }

    //由do_search调用,排出所有要搜索的文件
        function do_files($ser_func){
            if(!is_array($this->files)) $this->files = explode(',', $this->files);
            for($i=0; $ifiles); $i++){
                if($this->files[$i] == '.' OR $this->files[$i] == '..') continue;
                if(is_dir($this->files[$i]) == TRUE) continue;
                $newfile = $this->$ser_func($this->files[$i]);
                if(is_array($newfile) == TRUE){
                    $this->writeout($this->files[$i], $newfile[1]);
                    $this->occurences += $newfile[0];
                }
            }
        }

    //由do_search()调用,排出所有要搜索的目录
        function do_directories($ser_func){
            if(!is_array($this->directories)) $this->directories = explode(',', $this->directories);
            for($i=0; $idirectories); $i++){
                $dh = opendir($this->directories[$i]);
                while($file = readdir($dh)){
                    if($file == '.' OR $file == '..') continue;

                    if(is_dir($this->directories[$i].$file) == TRUE){
                        if($this->include_subdir == 1){
                            $this->directories[] = $this->directories[$i].$file.'/';
                            continue;
                        }else{
                            continue;
                        }
                    }

                    $newfile = $this->$ser_func($this->directories[$i].$file);
                    if(is_array($newfile) == TRUE){
                        $this->writeout($this->directories[$i].$file, $newfile[1]);
                        $this->occurences += $newfile[0];
                    }
                }
            }
        }

    //调用这个do_search()就可以开始对文件或目录进行搜索
        function do_search(){
            if($this->find != ''){
                if((is_array($this->files) AND count($this->files) > 0) OR $this->files != '') $this->do_files($this->search_function);
                if($this->directories != '')                    $this->do_directories($this->search_function);
            }
        }

    } // End of class
?>

//下面是调用该类的例子说明,请存为example.php


    include('search_replace.inc'); //将文件包括进来

//建立新物件,设置搜索条件、最后返回搜索结果

    $sr = new search_replace('asp', 'php', array('test.txt')); //调用搜索与替换
    $sr->set_search_function('quick');  //设置搜索条件
    $sr->do_search();

    $sr->set_find('another');
    $sr->do_search();

//下面是定制的返回信息
    header('Content-Type: text/plain');
    echo '发现和替换以下几个地方: '.$sr->get_num_occurences()."\r\n";
    echo '啊,错误发生如下.............: '.$sr->get_last_error()."\r\n";
?>

//将以下文字存为test.txt,注意text.txt必须是可读可写的
"我非常喜欢asp,它简单易学,功能强,听说asp已经占了大半市场,asp真好。"

此时,如果您打开exampe.php 就会出现下面这些:
发现和替换以下几个地方:3
啊,错误发生如下..........:   
查看test.txt文件,果然出现asp的地方被php替换了。
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
11 Best PHP URL Shortener Scripts (Free and Premium)11 Best PHP URL Shortener Scripts (Free and Premium)Mar 03, 2025 am 10:49 AM

Long URLs, often cluttered with keywords and tracking parameters, can deter visitors. A URL shortening script offers a solution, creating concise links ideal for social media and other platforms. These scripts are valuable for individual websites a

Working with Flash Session Data in LaravelWorking with Flash Session Data in LaravelMar 12, 2025 pm 05:08 PM

Laravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-

Build a React App With a Laravel Back End: Part 2, ReactBuild a React App With a Laravel Back End: Part 2, ReactMar 04, 2025 am 09:33 AM

This is the second and final part of the series on building a React application with a Laravel back-end. In the first part of the series, we created a RESTful API using Laravel for a basic product-listing application. In this tutorial, we will be dev

Simplified HTTP Response Mocking in Laravel TestsSimplified HTTP Response Mocking in Laravel TestsMar 12, 2025 pm 05:09 PM

Laravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>

cURL in PHP: How to Use the PHP cURL Extension in REST APIscURL in PHP: How to Use the PHP cURL Extension in REST APIsMar 14, 2025 am 11:42 AM

The PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.

12 Best PHP Chat Scripts on CodeCanyon12 Best PHP Chat Scripts on CodeCanyonMar 13, 2025 pm 12:08 PM

Do you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom

Announcement of 2025 PHP Situation SurveyAnnouncement of 2025 PHP Situation SurveyMar 03, 2025 pm 04:20 PM

The 2025 PHP Landscape Survey investigates current PHP development trends. It explores framework usage, deployment methods, and challenges, aiming to provide insights for developers and businesses. The survey anticipates growth in modern PHP versio

Notifications in LaravelNotifications in LaravelMar 04, 2025 am 09:22 AM

In this article, we're going to explore the notification system in the Laravel web framework. The notification system in Laravel allows you to send notifications to users over different channels. Today, we'll discuss how you can send notifications ov

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
1 months agoBy尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools