A PHP error and exception handling class with very good Display Results

Source: Internet
Author: User
Tags php debug
This article mainly introduces a PHP error and exception handling class with a very good display effect. The code is clear and powerful. For more information, see

This article mainly introduces a PHP error and exception handling class with a very good display effect. The code is clear and powerful. For more information, see

I ,:


II. Implementation Code

The Code is as follows:

// Custom exception Functions
Set_exception_handler ('handle _ exception ');

// Custom error functions
Set_error_handler ('handle _ error ');

/**
* Exception Handling
*
* @ Param mixed $ exception object
* @ Author blog.snsgou.com
*/
Function handle_exception ($ exception ){
Error: exceptionError ($ exception );
}

/**
* Handle errors
*
* @ Param string $ errNo error code
* @ Param string $ errStr error message
* @ Param string $ errFile error file
* @ Param string $ errLine error line
* @ Author blog.snsgou.com
*/
Function handle_error ($ errNo, $ errStr, $ errFile, $ errLine ){
If ($ errNo ){
Error: systemError ($ errStr, false, true, false );
}
}

/**
* System error handling
*
* @ Author blog.snsgou.com
*/
Class Error {

Public static function systemError ($ message, $ show = true, $ save = true, $ halt = true ){

List ($ showTrace, $ logTrace) = self: debugBacktrace ();

If ($ save ){
$ MessageSave =''. $ Message .'
PHP:'. $ LogTrace;
Self: writeErrorLog ($ messageSave );
}

If ($ show ){
Self: showError ('system ',"

  • $ Message
  • ", $ ShowTrace, 0 );
    }

    If ($ halt ){
    Exit ();
    } Else {
    Return $ message;
    }
    }

    /**
    * Code Execution backtracking Information
    *
    * @ Static
    * @ Access public
    */
    Public static function debugBacktrace (){
    $ SkipFunc [] = 'error-> debugBacktrace ';

    $ Show = $ log = '';
    $ DebugBacktrace = debug_backtrace ();
    Ksort ($ debugBacktrace );
    Foreach ($ debugBacktrace as $ k => $ error ){
    If (! Isset ($ error ['file']) {
    // Use the reflection API to obtain the file and number of rows where the method/function is located
    Try {
    If (isset ($ error ['class']) {
    $ Reflection = new ReflectionMethod ($ error ['class'], $ error ['function']);
    } Else {
    $ Reflection = new ReflectionFunction ($ error ['function']);
    }
    $ Error ['file'] = $ reflection-> getFileName ();
    $ Error ['line'] = $ reflection-> getStartLine ();
    } Catch (Exception $ e ){
    Continue;
    }
    }

    $ File = str_replace (SITE_PATH, '', $ error ['file']);
    $ Func = isset ($ error ['class'])? $ Error ['class']: '';
    $ Func. = isset ($ error ['type'])? $ Error ['type']: '';
    $ Func. = isset ($ error ['function'])? $ Error ['function']: '';
    If (in_array ($ func, $ skipFunc )){
    Break;
    }
    $ Error ['line'] = sprintf ('% 04d', $ error ['line']);

    $ Show. ='

  • [Line: '. $ error ['line'].'] '. $ file.' ('. $ func .')
  • ';
    $ Log. =! Empty ($ log )? '-> ':'';
    $ Log. = $ file. ':'. $ error ['line'];
    }
    Return array ($ show, $ log );
    }

    /**
    * Exception Handling
    *
    * @ Static
    * @ Access public
    * @ Param mixed $ exception
    */
    Public static function exceptionError ($ exception ){
    If ($ exception instanceof DbException ){
    $ Type = 'db ';
    } Else {
    $ Type = 'system ';
    }
    If ($ type = 'db '){
    $ ErrorMsg = '('. $ exception-> getCode ().')';
    $ ErrorMsg. = self: sqlClear ($ exception-> getMessage (), $ exception-> getDbConfig ());
    If ($ exception-> getSql ()){
    $ ErrorMsg. ='

    ';
    $ ErrorMsg. = self: sqlClear ($ exception-> getSql (), $ exception-> getDbConfig ());
    $ ErrorMsg. ='

    ';
    }
    } Else {
    $ ErrorMsg = $ exception-> getMessage ();
    }
    $ Trace = $ exception-> getTrace ();
    Krsort ($ trace );
    $ Trace [] = array ('file' => $ exception-> getFile (), 'line' => $ exception-> getLine (), 'function' => 'Break ');
    $ PhpMsg = array ();
    Foreach ($ trace as $ error ){
    If (! Empty ($ error ['function']) {
    $ Fun = '';
    If (! Empty ($ error ['class']) {
    $ Fun. = $ error ['class']. $ error ['type'];
    }
    $ Fun. = $ error ['function']. '(';
    If (! Empty ($ error ['args']) {
    $ Mark = '';
    Foreach ($ error ['args'] as $ arg ){
    $ Fun. = $ mark;
    If (is_array ($ arg )){
    $ Fun. = 'array ';
    } Elseif (is_bool ($ arg )){
    $ Fun. = $ arg? 'True': 'false ';
    } Elseif (is_int ($ arg )){
    $ Fun. = (defined ('site _ debug') & SITE_DEBUG )? $ Arg: '% d ';
    } Elseif (is_float ($ arg )){
    $ Fun. = (defined ('site _ debug') & SITE_DEBUG )? $ Arg: '% F ';
    } Else {
    $ Fun. = (defined ('site _ debug') & SITE_DEBUG )? '\ ''. Htmlspecialchars (substr (self: clear ($ arg), 0, 10). (strlen ($ arg)> 10? '...': ''). '\'':' % S ';
    }
    $ Mark = ',';
    }
    }
    $ Fun. = ')';
    $ Error ['function'] = $ fun;
    }
    If (! Isset ($ error ['line']) {
    Continue;
    }
    $ PhpMsg [] = array ('file' => str_replace (array (SITE_PATH, '\'), array ('','/'), $ error ['file']), 'line' => $ error ['line'], 'function' => $ error ['function']);
    }
    Self: showError ($ type, $ errorMsg, $ phpMsg );
    Exit ();
    }

    /**
    * Record error logs
    *
    * @ Static
    * @ Access public
    * @ Param string $ message
    */
    Public static function writeErrorLog ($ message ){

    Return false; // do not write data temporarily

    $ Message = self: clear ($ message );
    $ Time = time ();
    $ File = LOG_PATH. '/'. date ('Y. m. D'). '_ errorlog. php ';
    $ Hash = md5 ($ message );

    $ UserId = 0;
    $ Ip = get_client_ip ();

    $ User ='User:UserId = '. intval ($ userId).'; IP = '. $ ip.'; RIP: '. $ _ SERVER ['remote _ ADDR'];
    $ Uri = 'request: '. htmlspecialchars (self: clear ($ _ SERVER ['request _ URI']);
    $ Message =" \ T {$ time} \ t $ message \ t $ hash \ t $ user $ uri \ n ";

    // Determine whether the $ message has been recorded in the time interval $ maxtime. If yes, no record is required.
    If (is_file ($ file )){
    $ Fp = @ fopen ($ file, 'rb ');
    $ Lastlen = 50000; // read the last $ lastlen length bytes.
    $ Maxtime = 60*10; // interval: 10 minutes
    $ Offset = filesize ($ file)-$ lastlen;
    If ($ offset> 0 ){
    Fseek ($ fp, $ offset );
    }
    If ($ data = fread ($ fp, $ lastlen )){
    $ Array = explode ("\ n", $ data );
    If (is_array ($ array ))
    Foreach ($ array as $ key => $ val ){
    $ Row = explode ("\ t", $ val );
    If ($ row [0]! =' '){
    Continue;
    }
    If ($ row [3] === hash & ($ row [1]> $ time-$ maxtime )){
    Return;
    }
    }
    }
    }

    Error_log ($ message, 3, $ file );
    }

    /**
    * Clear some characters in text
    *
    * @ Param string $ message
    */
    Public static function clear ($ message ){
    Return str_replace (array ("\ t", "\ r", "\ n"), "", $ message );
    }

    /**
    * SQL statement character cleanup
    *
    * @ Static
    * @ Access public
    * @ Param string $ message
    * @ Param string $ dbConfig
    */
    Public static function sqlClear ($ message, $ dbConfig ){
    $ Message = self: clear ($ message );
    If (! (Defined ('site _ debug') & SITE_DEBUG )){
    $ Message = str_replace ($ dbConfig ['database'], '***', $ message );
    // $ Message = str_replace ($ dbConfig ['prefix'], '***', $ message );
    $ Message = str_replace (C ('db _ prefix'), '***', $ message );
    }
    $ Message = htmlspecialchars ($ message );
    Return $ message;
    }

    /**
    * Display Error
    *
    * @ Static
    * @ Access public
    * @ Param string $ type Error type db, system
    * @ Param string $ errorMsg
    * @ Param string $ phpMsg
    */
    Public static function showError ($ type, $ errorMsg, $ phpMsg = ''){
    Global $ _ G;

    $ ErrorMsg = str_replace (SITE_PATH, '', $ errorMsg );
    Ob_end_clean ();
    $ Host = $ _ SERVER ['HTTP _ host'];
    $ Title = $ type = 'db '? 'Database': 'system ';
    Echo <


    $ Host-$ title Error






    $ Title Error

    $ ErrorMsg


    EOT;
    If (! Empty ($ phpMsg )){
    Echo'

    ';
    Echo'

    PHP Debug

    ';
    Echo'














    ';If (is_array ($ phpMsg )){Echo' ';Foreach ($ phpMsg as $ k => $ msg ){$ K ++;Echo' ';Echo' ';Echo' ';Echo' ';Echo' ';Echo' ';}} Else {Echo' ';}Echo'
    No. File Line Code
    '. $ K .''. $ Msg ['file'].''. $ Msg ['line'].''. $ Msg ['function'].'
      '. $ PhpMsg .'

    ';
    }
    Echo <




    EOT;
    Exit ();
    }
    }

    /**
    * DB exception class
    *
    * @ Author blog.snsgou.com
    */
    Class DbException extends Exception {

    Protected $ SQL;
    Protected $ dbConfig; // Current Database Configuration Information

    Public function _ construct ($ message, $ code = 0, $ SQL = '', $ dbConfig = array ()){
    $ This-> SQL = $ SQL;
    $ This-> dbConfig = $ dbConfig;
    Parent: :__ construct ($ message, $ code );
    }

    Public function getSql (){
    Return $ this-> SQL;
    }

    Public function getDbConfig (){
    Return $ this-> dbConfig;
    }
    }

    Contact Us

    The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

    If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

    A Free Trial That Lets You Build Big!

    Start building with 50+ products and up to 12 months usage for Elastic Compute Service

    • Sales Support

      1 on 1 presale consultation

    • After-Sales Support

      24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.