[PHP-DEV] Bug #11009 Updated: Recursive call causes crash From: millz <email protected>
Date: 05/21/01

ID: 11009
User Update by: millz <email protected>
Status: Closed
Bug Type: Reproducible crash
Operating system: RedHat 6.2
PHP Version: 4.0.5
Description: Recursive call causes crash

Yeah, but the issue is not that I picked a "bad" way of doing this task, but whether or not a recursive call should be able to go this "deep" in PHP....i guess not.

Thanks for the help though,
Jas

Previous Comments:
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[2001-05-22 00:06:08] brianlmoon <email protected>
I personally used sprintf for this job before str_repeat came along. However, it is a useless argument now.

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[2001-05-21 22:58:04] millz <email protected>
yeah, but a while($length--) was super slow (10-20 times slower)...actually timed-out on the simplest runs.

maybe a for() is faster?!

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[2001-05-21 22:53:16] brianlmoon <email protected>
This is more of a programing error. This is a poor way to use recursive calls. A loop is the correct way to handle this.

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[2001-05-21 22:06:27] millz <email protected>
I created a function called pad which performs exactly what str_repeat does (didn't realize str_repeat was there originally).

function pad($length,$padVar="-"){
 if($length<=0){return;}
 else{return pad($length-1,$padVar).$padVar;}
}

When passing a length > about 5000 the page will not load and I quickly get this error in the php.error log:
[notice] child pid 15040 exit signal Segmentation fault (11)

I assume it is b/c the function stack is just not up to the task, but I thought I would let you know anyway.
Of course I am using str_repeat now....

Thanks!
Jason

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Full Bug description available at: http://bugs.php.net/?id=11009 

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