代码如下所示:
复制代码 代码如下:
/**
* 更新非法字符、發送錯誤信息
*
* @author
* @copyright 2009-06-10
*/
error_reporting(E_ERROR | E_WARNING | E_PARSE);
set_error_handler('displayErrorHandler');//自定義錯誤
//調試信息
echo "time:".date("Y-m-d H:i:s")."\n";
//數據配置
//公共函數
function displayErrorHandler($error, $error_string, $filename, $line, $symbols)
{
$error_no_arr = array(1=>'ERROR', 2=>'WARNING', 4=>'PARSE', 8=>'NOTICE', 16=>'CORE_ERROR', 32=>'CORE_WARNING', 64=>'COMPILE_ERROR', 128=>'COMPILE_WARNING', 256=>'USER_ERROR', 512=>'USER_WARNING', 1024=>'USER_NOTICE', 2047=>'ALL', 2048=>'STRICT');
$msg = sprintf("%s: %s at file %s(%s)", $error_no_arr[$error] ,$error_string, $filename, $line);
if(in_array($error,array(1,2,4))){
echo $msg; echo "\n";//調試顯示
//發送信息
if($error==1||$error==2) {
sendBankMsg($error_string); //發送簡訊
if(strpos($error_string, 'xml_parse(): Bytes:')!==FALSE){
writeFiltefile($error_string);
}
}
}
}
function hex2bin($hexdata) {
$bindata = '';
for($i=0; $i $bindata .= chr(hexdec(substr($hexdata, $i, 2)));
}
return $bindata;
}
function writeFiltefile($error_string)
{
if(strpos($error_string, 'xml_parse(): Bytes:')===FALSE||strpos($error_string, ' 0x')===FALSE){
return;
}
//寫入文件
$filename = 'filtetext.php';
include($filename);
$error_string = str_replace('xml_parse(): Bytes:', '', $error_string);
$error_string = str_replace(' 0x','', $error_string);
$error_text = hex2bin($error_string);
$filtetextArr[] = $error_text;
$tempArr = array_unique($filtetextArr);//去除重復
$result = implode("','",$tempArr);
$result = "";
fileWrite($filename, $result, 'w');
}
function sendBankMsg($msg)
{
$timestamp = time();
$params = "msg=".$msg
."&posttime=".$timestamp;
$length = strlen($params);
//创建socket连接
$domain = "www.admin.com"; //socket域名
$actionPath = "/action/bank/bankmsg.php"; //文件路徑
$fp = fsockopen($domain,80);
//构造post请求的头
if($fp){
$header = "POST ".$actionPath." HTTP/1.1\r\n";
$header .= "Host:".$domain."\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: ".$length."\r\n";
$header .= "Connection: Close\r\n\r\n";
//添加post的字符串
$header .= $params."\r\n";
//发送post的数据
fputs($fp,$header);
while (!feof($fp)) {
$line = fgets($fp,1024); //去除请求包的头只显示页面的返回数据
if ($inheader && ($line == "\n" || $line == "\r\n")) {
echo $line;
}
}
fclose($fp);
}
}
function fileWrite($fFileName, $fContent, $fTag = 'w') {
ignore_user_abort (TRUE);
$fp = fopen($fFileName, $fTag);
if (flock($fp, LOCK_EX)) {
fwrite($fp, $fContent);
flock($fp, LOCK_UN);
}
fclose($fp);
ignore_user_abort (FALSE);
return;
}
?>

TomakePHPapplicationsfaster,followthesesteps:1)UseOpcodeCachinglikeOPcachetostoreprecompiledscriptbytecode.2)MinimizeDatabaseQueriesbyusingquerycachingandefficientindexing.3)LeveragePHP7 Featuresforbettercodeefficiency.4)ImplementCachingStrategiessuc

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PHP performance bottlenecks can be solved through the following steps: 1) Use Xdebug or Blackfire for performance analysis to find out the problem; 2) Optimize database queries and use caches, such as APCu; 3) Use efficient functions such as array_filter to optimize array operations; 4) Configure OPcache for bytecode cache; 5) Optimize the front-end, such as reducing HTTP requests and optimizing pictures; 6) Continuously monitor and optimize performance. Through these methods, the performance of PHP applications can be significantly improved.

DependencyInjection(DI)inPHPisadesignpatternthatmanagesandreducesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itallowspassingdependencieslikedatabaseconnectionstoclassesasparameters,facilitatingeasiertestingandscalability.

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