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                                set_time_limit

   (PHP 3, PHP 4 )
   set_time_limit -- Limits the maximum execution time

Description

   void set_time_limit ( int seconds)

   Set the number of seconds a script is allowed to run. If this is
   reached, the script returns a fatal error. The default limit is 30
   seconds or, if it exists, the max_execution_time value defined in the
   php.ini. If seconds is set to zero, no time limit is imposed.

   When called, set_time_limit() restarts the timeout counter from zero.
   In other words, if the timeout is the default 30 seconds, and 25
   seconds into script execution a call such as set_time_limit(20) is
   made, the script will run for a total of 45 seconds before timing out.

   Warning

   set_time_limit() has no effect when PHP is running in safe mode. There
   is no workaround other than turning off safe mode or changing the time
   limit in the php.ini.

     Note: The set_time_limit() function and the configuration directive
     max_execution_time only affect the execution time of the script
     itself. Any time spent on activity that happens outside the
     execution of the script such as system calls using system(), the
     sleep() function, database queries, etc. is not included when
     determining the maximum time that the script has been running.
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