#47854 [Opn->Ver]: explode() with very large negative limit misbehaves

[jani]

 ID:               47854
 Updated by:       j...@php.net
 Reported By:      disas at mail dot ru
-Status:           Open
+Status:           Verified
 Bug Type:         Strings related
 Operating System: *
-PHP Version:      5.2.9
+PHP Version:      5.*, 6CVS (2009-04-01)
 New Comment:

Very strange results with HEAD/PHP_5_3 too:

# build/php_6/sapi/cli/php -n -dmemory_limit=2G -r 
'var_dump(explode(" "," 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ", 
-1e99));'

Fatal error: Allowed memory size of 2147483648 bytes exhausted (tried 
to allocate 18446744073383068122 bytes) in Command line code on line 
1

# build/php_5_3/sapi/cli/php -n -dmemory_limit=2G -r 
'var_dump(explode(" "," 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ", 
-1e99));'

Fatal error: Allowed memory size of 2147483648 bytes exhausted (tried 
to allocate 3792765909 bytes) in Command line code on line 1

# build/php_5_2/sapi/cli/php -n -dmemory_limit=2G -r 
'var_dump(explode(" "," 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ", 
-1e99));'
array(1) {
  [0]=>
  string(43) " 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 "
}




Previous Comments:
------------------------------------------------------------------------

[2009-03-31 19:15:47] disas at mail dot ru

Description:
------------
Bug on result where negative or positive number of limit is very high.

Reproduce code:
---------------
#Code:

var_export(
        explode(" "," 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ", -1e99)
);

#Result:
array (
  0 => ' 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ',
);

#Code:

var_export(
        explode(" "," 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ", -1e9)
);

#Result:
array (
)

Expected result:
----------------
array (
  0 => ' 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ',
);

Actual result:
--------------
I think that in both cases the result should be:
array(
)


------------------------------------------------------------------------


-- 
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