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ÀàÎļþ search_replace.inc
<?php


        
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;

        
//ÒÔϽøÐк¯Êý¶¨ÒåºÍÉèÖÃ
         
                
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;
                }

        
//»ñÈ¡×îºóµÄ´íÎó
                
function get_last_error(){
                        return
$this->last_error;
                }

        
//ÉèÖÃFIND±äÁ¿
                
function set_find($find){
                        
$this->find = $find;
                }

        
//ÉèÖÃreplace±äÁ¿
                
function set_replace($replace){
                        
$this->replace = $replace;
                }

        
//ÉèÖÃFILE±äÁ¿
                
function set_files($files){
                        
$this->files = $files;
                }

        
//ÉèÖÃĿ¼±äÁ¿
                
function set_directories($directories){
                        
$this->directories = $directories;
                }

        
//ÉèÖÃĿ¼±äÁ¿ set_include_subdir
                
function set_include_subdir($include_subdir){
                        
$this->include_subdir = $include_subdir;
                }

        
//ÉèÖÃignore_lines±äÁ¿
                
function set_ignore_lines($ignore_lines){
                        
$this->ignore_lines = $ignore_lines;
                }

        
//È·¶¨ÊÇÄÄÒ»ÖÖËÑË÷·½Ê½
                
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;
                        }
                }


        
//ÒÔÏÂΪËÑË÷ºÍÌæ»»³ÌÐòµÄÖ÷Îļþ
                
function search($filename){

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

                        for(
$i=0; $i<count($file_array); $i++){
                                
$continue_flag = 0;
                                if(
count($this->ignore_lines) > 0){
                                        for(
$j=0; $j<count($this->ignore_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;

                }

        //ʹÓÃquick(¿ìËÙ)ËÑË÷·½·¨Ê±£¬Ã»ÓÐigonre_lines¹¦ÄÜ
                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;

                }

        //pregËÑË÷·½·¨²»Ö§³Öignore_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;

                }

        //eregËÑË÷·½·¨Ò²²»Ö§³Öignore_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;

                }

        //дÐÂÎļþ
                function writeout($filename, $contents){

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

                }

        //ÓÉdo_searchµ÷Óã¬ÅųöËùÓÐÒªËÑË÷µÄÎļþ
                function do_files($ser_func){
                        if(!is_array($this->files)) $this->files = explode('
,', $this->files);
                        for($i=0; $i<count($this->files); $i++){
                                if($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];
                                }
                        }
                }

        //ÓÉdo_search()µ÷Óã¬ÅųöËùÓÐÒªËÑË÷µÄĿ¼
                function do_directories($ser_func){
                        if(!is_array($this->directories)) $this->directories = explode('
,', $this->directories);
                        for($i=0; $i<count($this->directories); $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];
                                        }
                                }
                        }
                }

        //µ÷ÓÃÕâ¸ödo_search()¾Í¿ÉÒÔ¿ªÊ¼¶ÔÎļþ»òĿ¼½øÐÐËÑË÷
                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
?>

//ÏÂÃæÊǵ÷ÓøÃÀàµÄÀý×Ó˵Ã÷,Çë´æΪexample.php

<?php

        
include('search_replace.inc');  //½«Îļþ°üÀ¨½øÀ´

//½¨Á¢ÐÂÎï¼þ£¬ÉèÖÃËÑË÷Ìõ¼þ¡¢×îºó·µ»ØËÑË÷½á¹û

        
$sr = new search_replace('asp', 'php', array('test.txt')); //µ÷ÓÃËÑË÷ÓëÌæ»»
        
$sr->set_search_function('quick');   //ÉèÖÃËÑË÷Ìõ¼þ
        
$sr->do_search();

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

//ÏÂÃæÊǶ¨ÖƵķµ»ØÐÅÏ¢
        
header('Content-Type: text/plain');
        echo
'·¢ÏÖºÍÌæ»»ÒÔϼ¸¸öµØ·½: '.$sr->get_num_occurences()." ";
        echo
'°¡£¬´íÎó·¢ÉúÈçÏÂ.............: '.$sr->get_last_error()." ";
?>

//½«ÒÔÏÂÎÄ×Ö´æΪtest.txt,×¢Òâtext.txt±ØÐëÊǿɶÁ¿ÉдµÄ
"Îҷdz£Ï²»¶asp,Ëü¼òµ¥Ò×ѧ£¬¹¦ÄÜÇ¿£¬Ìý˵aspÒѾ­Õ¼ÁË´ó°ëÊг¡£¬aspÕæºÃ¡£"

´Ëʱ£¬Èç¹ûÄú´ò¿ªexampe.php ¾Í»á³öÏÖÏÂÃæÕâЩ£º
·¢ÏÖºÍÌæ»»ÒÔϼ¸¸öµØ·½:3
°¡£¬´íÎó·¢ÉúÈçÏÂ..........:      
²é¿´test.txtÎļþ£¬¹ûÈ»³öÏÖaspµÄµØ·½±»phpÌæ»»ÁË¡£