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homepage :
current version : Xdebug 2
documentation :


Xdebug can be installed through PEAR/PECL


  • Xdebug displays stack trace of error.

  • Xdebug beautifies output of "var_dump" to make it more readable for debugging purpose.

  • Xdebug can log all function calls along with its parameters and return values

  • Xdebug allows code coverage analysis to find which line of code has been executed and how many times.

  • Xdebug has built-in profiler to optimize code.

Twitt this! Email this!

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Using boolean logic instead of CASE in WHERE clause of query in MS-SQL
Benefits :
  • Faster Performance
  • Improved Code Readability

Examples :
  • Replace "IF A THEN B " with "(NOT A)or B "
  • Replace "IF A THEN B ELSE C " with "((NOT A)or B) AND (A OR C) "

source : SQL WHERE clauses: Avoid CASE, use Boolean logic