Felmeddelande
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Förkortningar
- WSOD - white screen of death
- BSoD - Blue Screen of Death
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Typer
- Slarvfel
- Synfel
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Ord
- Felmarginal
Fenomen
Aktivitet
- Felsöka
Motsats
- Rätt
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Program
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Prylar
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Protokoll
RFC
2616
Statuskoder
Vill du ha fler statuskoder? Gå till vår sida som handlar om HTTP
Client error
- 400Bad Request
- 401Unauthorized
- 402Payment Required
- 403Forbidden
- 404Not Found
- 405Method Not Allowed
- 406Not Acceptable
- 407Proxy Authentication Required
- 408Request Timeout
- 409Conflict
- 410Gone
- 411Length Required
- 412Precondition Failed
- 413Request Entity Too Large
- 414Request-URI Too Long
- 415Unsupported Media Type
- 416Requested Range Not Satisfiable
- 417Expectation Failed
Server error
- 500Internal Server Error
- 501Not Implemented
- 502Bad Gateway
- 503Service Unavailable
- 504Gateway Timeout
- 505HTTP Version Not Supported
- 511Network Authentication Required
/Library/Logs/DiagnosticReports/
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Logga ett fel i webbläsarens konsol med JavaScript
console.error('Det har uppstått ett fel');
Testa något och kasta ett fel om det inte fungerar i JavaScript
try {
throw 'Felmeddelande';
} catch (error) {
alert('Fel: ' + error);
}
Testa här
Felmeddelande i PHP
Fördefinierade konstanter för fel i PHP
error_reporting(E_ALL);
ini_set('display_errors', 1);
Visa alla koder som går att använda för funktionen error_reporting
Värde | Konstanter | Beskrivning |
---|---|---|
1 |
E_ERROR
|
Fatal run-time errors. These indicate errors that can not be recovered from, such as a memory allocation problem. Execution of the script is halted. |
2 |
E_WARNING
|
Run-time warnings (non-fatal errors). Execution of the script is not halted. |
4 |
E_PARSE
|
Compile-time parse errors. Parse errors should only be generated by the parser. |
8 |
E_NOTICE
|
Run-time notices. Indicate that the script encountered something that could indicate an error, but could also happen in the normal course of running a script. |
16 |
E_CORE_ERROR
|
Fatal errors that occur during PHP's initial startup. This is like an
E_ERROR , except it is generated by the core of PHP.
|
32 |
E_CORE_WARNING
|
Warnings (non-fatal errors) that occur during PHP's initial startup.
This is like an E_WARNING , except it is generated
by the core of PHP.
|
64 |
E_COMPILE_ERROR
|
Fatal compile-time errors. This is like an E_ERROR ,
except it is generated by the Zend Scripting Engine.
|
128 |
E_COMPILE_WARNING
|
Compile-time warnings (non-fatal errors). This is like an
E_WARNING , except it is generated by the Zend
Scripting Engine.
|
256 |
E_USER_ERROR
|
User-generated error message. This is like an
E_ERROR , except it is generated in PHP code by
using the PHP function trigger_error().
|
512 |
E_USER_WARNING
|
User-generated warning message. This is like an
E_WARNING , except it is generated in PHP code by
using the PHP function trigger_error().
|
1024 |
E_USER_NOTICE
|
User-generated notice message. This is like an
E_NOTICE , except it is generated in PHP code by
using the PHP function trigger_error().
|
2048 |
E_STRICT
|
Enable to have PHP suggest changes to your code which will ensure the best interoperability and forward compatibility of your code. |
4096 |
E_RECOVERABLE_ERROR
|
Catchable fatal error. It indicates that a probably dangerous error
occurred, but did not leave the Engine in an unstable state. If the error
is not caught by a user defined handle (see also
set_error_handler()), the application aborts as it
was an E_ERROR .
|
8192 |
E_DEPRECATED
|
Run-time notices. Enable this to receive warnings about code that will not work in future versions. |
16384 |
E_USER_DEPRECATED
|
User-generated warning message. This is like an
E_DEPRECATED , except it is generated in PHP code by
using the PHP function trigger_error().
|
32767 |
E_ALL
|
All errors, warnings, and notices. |
Funktion som används för att skriva ut felmeddelande i SQL med PHP
mysqli_error();
Funktion för nummer och felmeddelande i SQL med PHP
error_log(mysqli_connect_errno() . ': ' . mysqli_connect_error());
Funktion för nummer i SQL med PHP
mysqli_connect_errno();
Funktion för felmeddelande i SQL med PHP
mysqli_connect_error();
Funktion för att sätta HTTP-status för not found i PHP
http_response_code(404);
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Htaccess
ErrorDocument 403 /403.html
ErrorDocument 404 /404.html
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Program
- Aktivitetskontroll (Activity monitor)
- Aktivitetshanteraren (Task manager)
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Tjänster
- OP5
- DATADOG
- Grafana
- Kibana
- new relic
- Prometheus
Applikation
Låt
- Lär Henrik fel
Variabler i PHP
$_SERVER['REDIRECT_STATUS']
Länkar
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Externa länkar
- https://developer.mozilla.org/en-US/docs/Glossary/MitM
- https://support.mozilla.org/en-US/kb/what-does-your-connection-is-not-secure-mean
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