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Error logging to file not browser in PHP

When you first install PHP on your web server, any errors and warnings in you code are flagged up in the browser window. And that's ideal for development purposes - any problems are quickly indicated to you, with pointers to where the issue lies.

But when you go live, there's a different story, Of course, there shouldn't be any problems remaining ... but ... if there are, then you'll not want your user to be alerted to the detail, including the line of code in which it occurred.

You can change the error behaviour of PHP through configuration switches in your php.ini file .... turning the display of errors off, and turning logging to file on. These two lines:

display_errors = On
log_errors = Off


being replaced by these three:

display_errors = Off
log_errors = On
error_log = /home/octoweb/oops.txt

(written 2007-10-11, updated 2007-10-16)

 
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  [2360] Error Handling in Lua with assert and pcall - (2009-08-13)
  [2259] Grouping rows for a summary report - MySQL and PHP - (2009-06-27)
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H117 - Security in PHP
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  [3813] Injection Attacks - PHP, SQL, HTML, Javascript - and how to neutralise them - (2012-07-22)
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  [3698] How to stop forms on other sites submitting to your scripts - (2012-04-15)
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  [2939] Protecting your images from use out of context - (2010-08-29)
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  [2628] An example of an injection attack using Javascript - (2010-02-08)
  [2025] Injection Attack if register_globals in on - PHP - (2009-02-04)
  [1779] Injection Attacks - avoiding them in your PHP - (2008-08-31)
  [1747] Who is watching you? - (2008-08-10)
  [1694] Defensive coding techniques in PHP? - (2008-07-02)
  [1679] PHP - Sanitised application principles for security and useability - (2008-06-16)
  [1542] Are nasty programs looking for security holes on your server? - (2008-02-17)
  [1482] A story about benchmarking PHP - (2007-12-23)
  [1396] Using PHP to upload images / Store on MySQL database - security questions - (2007-10-19)
  [1323] Easy handling of errors in PHP - (2007-08-27)
  [1086] Injection attacks - safeguard your PHP scripts - (2007-02-20)
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  [947] What is an SQL injection attack? - (2006-11-27)
  [920] A lion in a cage - PHP - (2006-11-10)
  [426] Robust checking of data entered by users - (2005-08-27)
  [345] Spotting a denial of service attack - (2005-06-12)


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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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