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>set_time_limit</H1
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><P
> (PHP 3, PHP 4 )</P
>set_time_limit -- Limits the maximum execution time</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN75328"
></A
><H2
>Description</H2
>void <B
CLASS="methodname"
>set_time_limit</B
> ( int seconds)<BR
></BR
><P
> 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
<TT
CLASS="literal"
>max_execution_time</TT
> value defined in the <A
HREF="ref.info.html#ini.max-execution-time"
>configuration file</A
>. If
seconds is set to zero, no time limit is imposed.
</P
><P
> When called, <B
CLASS="function"
>set_time_limit()</B
> 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.
</P
><P
> <B
CLASS="function"
>set_time_limit()</B
> 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 <A
HREF="ref.info.html#ini.max-execution-time"
>configuration file</A
>.
</P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
The <B
CLASS="function"
>set_time_limit()</B
> function and the
configuration directive <A
HREF="ref.info.html#ini.max-execution-time"
>max_execution_time</A
> 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 <A
HREF="function.system.html"
><B
CLASS="function"
>system()</B
></A
>, the
<A
HREF="function.sleep.html"
><B
CLASS="function"
>sleep()</B
></A
> function, database queries, etc. is
not included when determining the maximum time that the script
has been running.
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