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A good class for searching and replacing files or directories--very practical_PHP tutorial
- WBOYOriginal
- 2016-07-21 16:03:16765browse
This is a very useful program that can perform specific searches on text files and replace specified text with specific text. For example, if I have a typo in this article, there are dozens of them. It is very troublesome to find and modify them one by one. You can easily do it with the following method.--teaman.oso.com.cn
Class file search_replace.inc
class search_replace{ var $replace;
var $files;
var $directories;
var $include_subdir;
var $ignore_lines; > var $ignore_sep;
var $occurences;
var $
search_function; 1, $ignore_lines = array()){
$this->find = $find;
$this->replace = $replace;
files;
$this->directories = $directories; $this->include_subdir = $inc_subdir;lude $this->ignore_lines = $ignore_lines;
$this- >occurences = 0;
$this->search_function = 'search';
last_error = '';
🎝>*/
function get_num_occurences(){
//Get the last error
function get_last_error(){
return $this->last_error;
🎜>
//Set the replace variable
function set_replace($replace){
FILE variable
function set_files($files){
$this->files = $files;
$this->directories = $directories;
this->include_subdir = $include_subdir;
ignore_lines variable
function set_ignore_lines($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; $i
if(count($this->ignore_lines) > 0){
for($j=0; $j
if(substr($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 $return;
}
//When using the quick search method, there is no igonre_lines function
function quick_search($filename){
clearstatcache();
$file = fread ($fp = fopen($filename, 'r'), filesize($filename)); fclose($fp); $ File = Str_replace; CES, $ file); else $return = FALSE;
return $return; function preg_search($filename){
🎜> $occurences = count($matches = preg_split($this->find, $file)) - 1;
The /ereg search method does not support ignore_lines
function ereg_search($filename){
clearstatcache(); $file = fread($fp = fopen($filename, 'r' ), filesize($filename)); fclose($fp); = ereg_replace($this->find, $this->replace, $file);
= FALSE;
return $return;
fwrite($fp, $contents);
$this->last_error = 'Could not open file: '.$filename; 🎜>
If(!is_array($this->files)) $this->files = explode(',', $this->files);
for($i=0; $i
if ($this->files[$i] == '.' OR $this->files[$i] == '..') continue; -> files[$i]) == TRUE) continue;
is_array($newfile) == TRUE){
$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; $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].$file.'/';
continue;
}else{
continue;
}
}
If(is_array($newfile) == TRUE){
$this->writeout($this->directories[$i].$file, $newfile[1]);
} 🎜>} }
}
// Call this do_search () to start searching the file or directory
Function Do_search () {
If ($ This- & GT ;find != ''){
this->do_files($this->search_function);
;do_directories($this->search_function);
🎜> // End of class
?>
//The following is an example of calling this class, please save it as example.php
include('search_replace.inc'); //Include the file
//Create a new object, set the search conditions, and finally return the search results
$sr = new search_replace('asp' , 'php', array('test.txt')); // Call search and replace
$sr->set_search_function('quick'); //Set search conditions
$sr->do_search ();
$sr->set_find('another');
do_search();
//The following is the customized return information
header('Content-Type: text/plain');
echo 'Find and replace the following places: '.$sr->get_num_occurences()."rn";
echo 'Ah, an error occurred As follows.............: '.$sr->get_last_error()."rn";
?>
//Save the following text as test .txt, please note that text.txt must be readable and writable
"I like ASP very much. It is easy to learn and has powerful functions. I heard that ASP has accounted for most of the market. ASP is really good."
At this time, if you open exame.php, the following will appear:
Discover and replace the following places:3
Ah, the error occurred as follows...: In the test.txt file, as expected, the place where asp appears was replaced by php.