PHP :: Bug #3727 :: <= test change on a string used as a loop index changes its size

Bug #3727	<= test change on a string used as a loop index changes its size
Submitted:	2000-03-04 19:22 UTC	Modified:	2000-03-05 11:40 UTC
From:	tesio at easynet dot fr	Assigned:
Status:	Closed	Package:	Misbehaving function
PHP Version:	3.0.12	OS:	Linux RedHat 5.2 2.0.36
Private report:	No	CVE-ID:	None

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[2000-03-04 19:22 UTC] tesio at easynet dot fr

for ($a="A";$a<"Z";$a++) { echo $a; }

ABCDEFGHIJKLMNOPQRSTUVWXY

When you replace < with <= the variable is now on
two characters :

for ($a="A";$a<="Z";$a++) { echo $a; }

ABCDEFGHIJKLMNOPQRSTUVWXYZAAABACADAEAFAG ... YZ

Sorry I can't test in in the newest version, I don't own
the machine, there is nothing in the ChangeLog about this
problem.

live phpinfo here if needed :
http://www.onesite.org/phpinfo.php3

Regards,
Alain Tesio

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[2000-03-05 11:40 UTC] sas at cvs dot php dot net

The result is correct.

You change the condition of the for loop, thus PHP will run until the string $a becomes larger than "Z". In PHP, "Z" + 1 is "AA", that is why you see two letter combinations.

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