PHP file name and file content finder example_PHP tutorial
Searching for files is very simple. As long as the user enters a directory, we will automatically traverse the directory to find the associated file names and list them. Let’s take a look.
php file search program, after entering a path, it will traverse all the files and folders in the directory. Each file under the folder can be found through recursion, and then by matching the file name with the entered keyword, you can find the file you want. For local, we can use the search that comes with Windows to search, but for online, such as searching for files in ftp space, this program is very useful.
PHP file finder source code:
The code is as follows | Copy code | ||||
"; $file_num = $dir_num = 0; $r_file_num = $r_dir_num= 0; $findFile = $_POST['key']; function delDirAndFile( $dirName ){ if ( $handle = @opendir( "$dirName" ) ) { while ( false !== ( $item = readdir( $handle ) ) ) { if ( $item != "." && $item != ".." ) { if ( is_dir( "$dirName/$item" ) ) { delDirAndFile( "$dirName/$item" ); } else { $GLOBALS['file_num']++; if(strstr($item,$GLOBALS['findFile'])){ echo " $dirName/$item n"; $GLOBALS['r_file_num']++; } } } } closedir( $handle ); $GLOBALS['dir_num']++; if(strstr($dirName,$GLOBALS['findFile'])){ $loop = explode($GLOBALS['findFile'],$dirName); $countArr = count($loop)-1; if(empty($loop[$countArr])){ echo " $dirName n"; $GLOBALS['r_dir_num']++; } } }else{ die("No such path!"); } } delDirAndFile($_POST['path']); echo " A total of ".$file_num." files and folders ".$dir_num." were found this time "; echo " A total of ".$r_file_num." files and folders ".$r_dir_num." matching the results "; } ?> |
The above is just a search file. Let’s see if the characters in a search file include what we are looking for
I wrote a PHP program to batch search file contents. I used it to scan file feature codes. Now I post the code for your reference
The code is as follows | Copy code | |
if ($_POST ['Submit'] == 'Start') { $total = 0; //Total number of files $dangerous = array (); //Dangerous files $dangerous_content = $_POST ["sstr"]; $find_path = $_POST ["searchpath"]; $shortname = $_POST ["shortname"]; echo "gt ;"; echo ""; echo " ";echo ""; echo ""; echo " ";$begin_time=date("U"); // $dangerous_content = "Xiao Liang,Root_GP,Root_CSS,c99sh_updateurl,c99sh_sourcesurl,640684770"; visitFile ( $find_path, $shortname ); $end_time=date("U"); foreach ($dangerous as $d){ echo $d." } echo "Total number of files to search:" . $total." Dangerous files: ".count($dangerous)." Total time ".($end_time-$begin_time)."seconds"; echo ""; echo ""; //if (! empty ( $dangerous )) { //foreach ( $dangerous as $dan ) { //echo "[error]" . $dan . " //} //} exit(); } function visitFile($path, $ext) { global $total; global $dangerous_content; $fdir = dir ( $path ); //echo "Handle: " . $d->handle . " // echo "Path: " . $fdir->path . " set_time_limit (24 * 60 * 60);
while ( ($entry = $fdir->read ()) !== false ) { $pathSub = $path . "" . $entry; if ($entry != '.' && $entry != '..') { if (is_dir ( $pathSub )) { visitFile ( $pathSub, $ext ); } else { $exten = explode ( '.', $entry ); $exten = array_reverse ( $exten ); //Reverse the above array // foreach () $shortnames = explode ( '|', $ext ); foreach ( $shortnames as $sn ) { if (! empty ( $exten ) && $sn == $exten [0]) { $total = $total + 1; //echo "Start analyzing files:".$path."/".$entry . " $content = file_get_contents ( $path . "/" . $entry ); //This has better performance $content = strtolower ( $content ); //Convert all to lowercase $dangerous_content = strtolower ( $dangerous_content ); // Convert all to lowercase isExists ( $dangerous_content, $path . "/" . $entry, $content );//This method consumes too much memory, I hope some experts can solve it } } //sleep(1); } } } $fdir->close (); } function isExists($str, $filename, $content) { global $dangerous; //sleep ( 1 ); set_time_limit (10); $arr = explode ( ',', $str ); $signature="Character code:"; if (! empty ( $arr )) { // $content = file_get_contents ( $filename ); // This has better performance $content = strtolower ( $content ); //全部转为小写 $error_count = 0; foreach ( $arr as $a ) { if (trim ( $a ) != "") { if (strpos ( $content, $a )) { $error_count = $error_count + 1; $signature.=$a." "; } } } if ($error_count > 0) { // $dangerous [] = $filename; $dangerous [] = "[error] " . $error_count . " " .$signature." " . $filename; //echo "[error] " . $error_count . " " .$signature." " . $filename . " }else{ //echo "[ok] " . $filename . " } } } ?>
body { background: #FFFFFF; color: #000; font-size: 12px; }
#top { text-align: center; }
h1,p,form { margin: 0; padding: 0; }
h1 {font-size; 14px;
} 批量查找程序本程序可以扫描指定目录的所有文件,进行内容查找。
在文件数量非常多的情况下,本操作比较占用服务器资源,请确脚本超时限制时间允许更改,否则可能无法完成操作。
|

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

SublimeText3 English version
Recommended: Win version, supports code prompts!

WebStorm Mac version
Useful JavaScript development tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

Zend Studio 13.0.1
Powerful PHP integrated development environment