Home > Developer > Web Develop
"Record error (production environment)"
Ini:
① turn on/off error log function
Log_errors = On
② Setting the maximum number of bytes for log_errors
1024
Other:
| Options | Describe |
| Log_errors | Sets whether to log error messages to logs or Error_log |
| Error_log | Set the file to which the script error will be logged |
| Log_errors_max_len | Set the maximum number of bytes for log_errors |
| Ignore_repeated_errors | Whether to ignore duplicate error messages |
| Ignore_repeated_source | Whether to ignore the source of duplicate error messages |
| Track_errors | If this option is turned on, the last error will be permanently saved in $php_errormsg |
"Method One" logs the error to the specified file
① Open the log_errors in php.ini
② specifies the path to save the error log, for example:
" D:/wamp/logs/php_error.log "
"Example 1"
<?PHP//Turn off error displayIni_set ('display_errors',0);//Show All ErrorsError_reporting (-1);//Log Errors//error at notification levelecho $test;//WarningSettype ($var,'Dee');//Fatal errorTest ();
The page will not have any output. Open D:\wamp\logs\php_error.log:
[ +-may- - the: -: -UTC] PHPNotice: Undefined variable:testinchD:\practise\php\Error\error1.php on line9[ +-may- - the: -: -UTC] PHP Stack trace:[ +-may- - the: -: -UTC] PHP1. {main} () D:\practise\php\Error\error1.php:0[ +-may- - the: -: -UTC] PHPWarning: Settype () [<a href='Function.settype'>function.settype</a>]: Invalid typeinchD:\practise\php\Error\error1.php on line One[ +-may- - the: -: -UTC] PHP Stack trace:[ +-may- - the: -: -UTC] PHP1. {main} () D:\practise\php\Error\error1.php:0[ +-may- - the: -: -UTC] PHP2. Settype () D:\practise\php\Error\error1.php: One[ +-may- - the: -: -UTC] PHPFatal Error: Call to undefined function test ()inchD:\practise\php\Error\error1.php on line -[ +-may- - the: -: -UTC] PHP Stack trace:[ +-may- - the: -: -UTC] PHP1. {main} () D:\practise\php\Error\error1.php:0
Example 2 sets the path to the Save error log in Ini_set ().
<?PHP//Turn off error displayIni_set(' Display_errors ', 0);//setting the path to the error logIni_set(' Error_log ', ' D:\wamp\logs\php_error_2.log ');//Show All Errorserror_reporting(-1);//Error logging error//notification levelEcho $test; //WarningSettype($var, ' Dee ');//Fatal errorTest ();
The page will not have any output. Open D:\wamp\logs\php_error_2.log:
[19-may-2015 16:04:41 UTC] PhpNotice: Undefined variable:test in D:\practise\php\Error\error1.php on line 11[19-may-2015 16:04:41 UTC] PHP Stack Trace:[19-may-2015 16:04:41 UTC] PHP 1. {main} () d:\practise\php\error\error1.php:0[19-may-2015 16:04:41 UTC] PHPWarning:Settype() [<a href= ' Function.settype ' >function.Settype</a>]: Invalid type in D:\practise\php\Error\error1.php on line 13[19-may-2015 16:04:41 UTC] PHP Stack Trace:[19-may-2015 16:04:41 UTC] PHP 1. {main} () d:\practise\php\error\error1.php:0[19-may-2015 16:04:41 UTC] PHP 2.Settype() d:\practise\php\error\error1.php:13[19-may-2015 16:04:41 UTC] PHPFatal Error: Call to undefinedfunctionTest () in D:\practise\php\Error\error1.php on line 15[19-may-2015 16:04:41 UTC] PHP Stack Trace:[19-may-2015 16:04:41 UTC] PHP 1. {main} () d:\practise\php\error\error1.php:0
"Example 3" records when the user attempts to log on to the system with what password time and IP address (for example, through the log analysis of the water injection robot)
Login.html
<!DOCTYPE HTML><HTML> <Head> <title>TODO supply a title</title> <MetaCharSet= "UTF-8"> <Metaname= "Viewport"content= "Width=device-width, initial-scale=1.0"> </Head> <Body> <H1>Login</H1> <formAction= "doaction.php"Method= "POST">User name:<inputtype= "text"name= "username" /><BR/>Password:<inputtype= "Password"name= "Password" /><BR/> <inputtype= "Submit"value= "Login"> </form> </Body></HTML>
doaction.php:
<?PHP//do not show all errorsIni_set(' Display_errors ', 0);//Error Level: All Errorserror_reporting(-1);//turn on the error log functionIni_set(' Log_errors ', ' on ');//Set error log save pathIni_set(' Error_log ', ' D:\wamp\logs\login.log ');//Ignore duplicate error messagesIni_set(' Ignore_repeated_errors ', ' on ');//ignore the source of duplicate messagesIni_set(' Ignore_repeated_source ', ' on ');//Setting the time zoneIni_set(' Date.timezone ', ' PRC ');$username=$_post[' username '];$password=$_post[' Password '];if($username= = ' Admin ' &&$password= = ' Admin '){ Echo' Login Chen Gong ';}Else{ //the time and IP address when the administrator attempts to log on to the system with what password $date=Date("Y-m-d h:i:s", Time()); $ip=$_server[' REMOTE_ADDR ']; $message= "User {$usernameIn$dateTo$passwordTry to log on to the system, the current user's IP address is {$ip}"; Error_log($message); //Jump Header(' location:login.html ');}
Open: D:\wamp\logs\login.log:
[19-may-2015 16:25:59 UTC] User Dee at 2015-05-20 00:25:59 with Dee trying to log on to the system, the current user's IP address is 127.0.0.1
"Method Two" logs the error to the system log
"Method Three " sends an error as a message
PHP errors and exceptions notes and Summary (5) options related to error logs in the configuration file
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
