ajax+php教程文件管理系统
ajax.网页特效
<script><br /> // javascript document<br /> function do_ajax() { <br /> }<br /> function ajax_get_data(id) { <br /> }<br /> function file_list(path) { <br /> var xhr;<br /> if (window.xmlhttprequest) {<br /> xhr = new xmlhttprequest();<br /> }else if (window.activexobject) {<br /> xhr = new activexobject("msxml2.xmlhttp");<br /> }else {<br /> throw new error("ajax is not supported by this www.bKjia.c0m browser");<br /> }<br /> xhr.onreadystatechange = function () {<br /> if (xhr.readystate == 4) {<br /> if (xhr.status >= 200 && xhr.status < 300) {<br /> document.getelementbyid('file_list').innerhtml = xhr.responsetext;<br /> }<br /> }<br /> }<br /> xhr.open('get','anfms.php?action=filelist&path='+path);<br /> xhr.setrequestheader("if-modified-since","0");<br /> xhr.send();<br /> }<br /> function file_content_input(data) {<br /> var data;<br /> var xhr;<br /> if (window.xmlhttprequest) {<br /> xhr = new xmlhttprequest();<br /> }else if (window.activexobject) {<br /> xhr = new activexobject("msxml2.xmlhttp");<br /> }else {<br /> throw new error("ajax is not supported by this browser");<br /> }<br /> xhr.onreadystatechange = function () {<br /> if (xhr.readystate == 4) {<br /> if (xhr.status >= 200 && xhr.status < 300) {<br /> document.getelementbyid('file_content_input').innerhtml = xhr.responsetext;<br /> }<br /> }<br /> }<br /> xhr.open('get','anfms.php?action=inputcontent&'+data);<br /> xhr.setrequestheader("if-modified-since","0");<br /> xhr.send(); <br /> }<br /> function file_get_content(data) {<br /> var data;<br /> var xhr;<br /> if (window.xmlhttprequest) {<br /> xhr = new xmlhttprequest();<br /> }else if (window.activexobject) {<br /> xhr = new activexobject("msxml2.xmlhttp");<br /> }else {<br /> throw new error("ajax is not supported by this browser");<br /> }<br /> xhr.onreadystatechange = function () {<br /> if (xhr.readystate == 4) {<br /> if (xhr.status >= 200 && xhr.status < 300) {<br /> document.getelementbyid('file_get_content').innerhtml = xhr.responsetext;<br /> }<br /> }<br /> }<br /> xhr.open('get','anfms.php?action=getcontent&'+data);<br /> xhr.setrequestheader("if-modified-since","0");<br /> xhr.send(); <br /> }<br /> function file_make(file) {<br /> var file;<br /> var xhr;<br /> if (window.xmlhttprequest) {<br /> xhr = new xmlhttprequest();<br /> }else if (window.activexobject) {<br /> xhr = new activexobject("msxml2.xmlhttp");<br /> }else {<br /> throw new error("ajax is not supported by this browser");<br /> }<br /> xhr.onreadystatechange = function () {<br /> if (xhr.readystate == 4) {<br /> if (xhr.status >= 200 && xhr.status < 300) {<br /> document.getelementbyid('file_make').innerhtml = xhr.responsetext;<br /> }<br /> }<br /> }<br /> xhr.open('get','anfms.php?action=filemake&'+file);<br /> xhr.setrequestheader("if-modified-since","0");<br /> xhr.send(); <br /> }<br /> function file_delete(file) {<br /> var file;<br /> var xhr;<br /> if (window.xmlhttprequest) {<br /> xhr = new xmlhttprequest();<br /> }else if (window.activexobject) {<br /> xhr = new activexobject("msxml2.xmlhttp");<br /> }else {<br /> throw new error("ajax is not supported by this browser");<br /> }<br /> xhr.onreadystatechange = function () {<br /> if (xhr.readystate == 4) {<br /> if (xhr.status >= 200 && xhr.status < 300) {<br /> document.getelementbyid('file_list').innerhtml = xhr.responsetext;<br /> }<br /> }<br /> }<br /> xhr.open('get','anfms.php?action=delete_file&file='+file);<br /> xhr.setrequestheader("if-modified-since","0");<br /> xhr.send(); <br /> }<br /> function dir_delete(file) {<br /> var file;<br /> var xhr;<br /> if (window.xmlhttprequest) {<br /> xhr = new xmlhttprequest();<br /> }else if (window.activexobject) {<br /> xhr = new activexobject("msxml2.xmlhttp");<br /> }else {<br /> throw new error("ajax is not supported by this browser");<br /> }<br /> xhr.onreadystatechange = function () {<br /> if (xhr.readystate == 4) {<br /> if (xhr.status >= 200 && xhr.status < 300) {<br /> document.getelementbyid('file_list').innerhtml = xhr.responsetext;<br /> }<br /> }<br /> }<br /> xhr.open('get','anfms.php?action=delete_dir&file='+file);<br /> xhr.setrequestheader("if-modified-since","0");<br /> xhr.send(); <br /> }<br /> </script>
anfms.php
/**
* all needs file e bKjia.c0m manage system
* this is a test code
* return data to ajax
* by aiens
* 2010-01-13 19:20
*/header("content-type: text/html; charset=utf-8");
$document_root = $_server['document_root'];
if ($_get['action'] == 'filelist') { //return file list
echo '';';
$checkpath = str_replace($document_root,'',$_get['path']);
if ($checkpath != '/../') {
$checkpath = str_replace('../','',$checkpath);
$path1 = $document_root.str_replace($document_root,'',$_get['path']);
$dir = opendir($path1);
while ($file = readdir($dir)) {
if (!($file == '..')) {
if ($file == '.') {
$path = $path1.'../';
$file = '返回';
if ($checkpath != '/') {
echo ''.$file.' ';
}
}else{
$path = $path1.$file.'/';
$path = iconv('gb2312','utf-8',$path);
if (is_dir($path1.$file)) {
echo ''.$file.'删除 ';
}else{
$file = iconv('gb2312','utf-8',$file);
$filesize = filesize($path1.$file)/1000;
echo ''.$file.' - ('.$filesize.'kb)删除 ';
}
}
}
}
closedir($dir);
}
echo '
}else if ($_get['action'] == 'inputcontent') { //input data to file
$name = $_get['input_name'];
$content = $_get['input_content'];
$data = date('y-m-d h:i:s');
$fp = @fopen(dirname(__file__).'/'.$name, 'ab');
$data = "data:".$data."t content:".$content."n";
$fw = @fwrite($fp, $data, strlen($data));
@fclose($fp);
if ($fw) {
echo '成功写入';
}else{
echo '写入失败';
}
}else if ($_get['action'] == 'getcontent') { //get data to file
$name = $_get['input_name'];
$fp = @fopen(dirname(__file__).'/'.$name, 'rb');
if (!$fp) {
echo 'www.bKjia.c0m 系统所在目录不存在此文件,无法读取';
exit;
}
while (!feof($fp)) {
$content = fgets($fp);
echo $content.'
';
}
}else if ($_get['action'] == 'filemake') { //make dir
$name = $_get['input_name'];
function makedir($path) {
if (!file_exists($path)) {
makedir(dirname($path));
return mkdir($path, 0777);
}
}
if (makedir($name)) {
echo '成功创建';
}else{
echo '创建失败';
}
}else if ($_get['action'] == 'delete_file') { //delete file
$file = $_get['file'];
unlink($file);
echo '成功删除';
}else if ($_get['action'] == 'delete_dir') { //delete dir
$dir = $_get['file'];
function delete_dir($dir) {
if(! is_dir($dir)) {
return false;
}
$handle = @opendir($dir);
while(($file = @readdir($handle)) !== false) {
if($file != '.' && $file != '..') {
$dir = $dir . '/' . $file;
is_dir($dir) ? delete_dir($dir) : @unlink($dir);
}
}
closedir($handle);
return rmdir($dir) ;
}
if (delete_dir($dir)) {
echo '成功删除';
}else{
echo '删除失败';
}
}
?>

TheSecretTokeEpingAphp-PowerEdwebSiterUnningSmoothlyShyunderHeavyLoadInVolvOLVOLVOLDEVERSALKEYSTRATICES:1)emplactopCodeCachingWithOpcachingWithOpCacheToreCescriptexecution Time,2)使用atabasequercachingCachingCachingWithRedataBasEndataBaseLeSendataBaseLoad,3)

你应该关心DependencyInjection(DI),因为它能让你的代码更清晰、更易维护。1)DI通过解耦类,使其更模块化,2)提高了测试的便捷性和代码的灵活性,3)使用DI容器可以管理复杂的依赖关系,但要注意性能影响和循环依赖问题,4)最佳实践是依赖于抽象接口,实现松散耦合。

是的,优化papplicationispossibleandessential.1)empartcachingingcachingusedapcutorediucedsatabaseload.2)优化的atabaseswithexing,高效Quereteries,and ConconnectionPooling.3)EnhanceCodeWithBuilt-unctions,避免使用,避免使用ingglobalalairaiables,并避免使用

theKeyStrategiestosiminificallyBoostphpapplicationPermenCeare:1)useOpCodeCachingLikeLikeLikeLikeLikeCacheToreDuceExecutiontime,2)优化AtabaseInteractionswithPreparedStateTemtStatementStatementSandProperIndexing,3)配置

aphpdepentioncontiveContainerIsatoolThatManagesClassDeptions,增强codemodocultion,可验证性和Maintainability.itactsasaceCentralHubForeatingingIndections,因此reducingTightCightTightCoupOulplingIndeSingantInting。

选择DependencyInjection(DI)用于大型应用,ServiceLocator适合小型项目或原型。1)DI通过构造函数注入依赖,提高代码的测试性和模块化。2)ServiceLocator通过中心注册获取服务,方便但可能导致代码耦合度增加。

phpapplicationscanbeoptimizedForsPeedAndeffificeby:1)启用cacheInphp.ini,2)使用preparedStatatementSwithPdoforDatabasequesies,3)3)替换loopswitharray_filtaray_filteraray_maparray_mapfordataprocrocessing,4)conformentnginxasaseproxy,5)

phpemailvalidation invoLvesthreesteps:1)格式化进行regulareXpressecthemailFormat; 2)dnsvalidationtoshethedomainhasavalidmxrecord; 3)


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