#50983 [Ver->Csd]: default value for $length parameter of substr_compare() is incorrect in docs

ID: 50983 Updated by: rquadling@php.net Reported By: guy dot paddock at gmail dot com -Status: Verified +Status: Closed Bug Type: Documentation problem Operating System: Debian Etch PHP Version: 5.2.12 New Comment: This bug has been fixed in the documentation's XML sources. Since the online and downloadable versions of the documentation need some time to get updated, we would like to ask you to be a bit patient. Thank you for the report, and for helping us make our documentation better. Previous Comments: ------------------------------------------------------------------------ [2010-02-10 10:58:24] rquadling@php.net According to the source code at http://svn.php.net/viewvc/php/php- src/trunk/ext/standard/string.c?view=markup#l7865, the default value can be expressed as ... max(strlen($str), strlen($main_str) - $offset) ------------------------------------------------------------------------ [2010-02-10 01:07:53] guy dot paddock at gmail dot com Description: ------------ The documentation for substr_compare() indicates that the default value for the $length parameter is the string length of the $main_str parameter, but this doesn't appear to be the case. Reproduce code: --------------- --- From manual page: function.substr-compare#Description --- <?php $a = "abc123"; $b = "abc"; echo "Is the documentation correct? "; echo ((substr_compare($b, $a, 0) == (substr_compare($b, $a, 0, strlen($b)))) ? 'true' : 'false'); echo "\n"; ?> Expected result: ---------------- Is the documentation correct? true Actual result: -------------- Is the documentation correct? false ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=50983&edit=1