获取PHP警告错误信息的解决方法

<?php
/**
* 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; $i < strlen($hexdata); $i += 2) {
        $bindata .= chr(hexdec(substr($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);
    $result = "<?php\n\$filtetextarr = array('".$result."');\n?>";
    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;
}
?>