Bug #14315: array_unique stopped working on arrays after 4.0.4pl1

From: truth@ichaos.com Operating system: RedHat 6.2 PHP version: 4.0.5 PHP Bug Type: Arrays related Bug description: array_unique stopped working on arrays after 4.0.4pl1 I upgraded from php-4.0.4pl1 to php-4.0.5 and 4.0.6 and in both instances, the script I run array_unique in only returns one item in my array. Here is a script that will work as expected in php-4.0.4pl1 but not in any version higher: $array1[] = array(0 => "one"); $array1[] = array(0 => "two"); $array1[] = array(0 => "two"); $array1[] = array(0 => "three"); $array1[] = array(0 => "three"); $array1[] = array(0 => "three"); echo "<PRE>"; echo "Before unique: <BR>"; var_dump($array1); $array1 = array_values(array_unique($array1)); echo "After unique: <BR>"; var_dump($array1); echo "</PRE>"; === Output for 4.0.4pl1 looks like: Before unique: array(6) { [0]=> array(1) { [0]=> string(3) "one" } [1]=> array(1) { [0]=> string(3) "two" } [2]=> array(1) { [0]=> string(3) "two" } [3]=> array(1) { [0]=> string(5) "three" } [4]=> array(1) { [0]=> string(5) "three" } [5]=> array(1) { [0]=> string(5) "three" } } After unique: array(3) { [0]=> array(1) { [0]=> string(3) "one" } [1]=> array(1) { [0]=> string(3) "two" } [2]=> array(1) { [0]=> string(5) "three" } } === Output for versions later look like: Before unique: array(6) { [0]=> array(1) { [0]=> string(3) "one" } [1]=> array(1) { [0]=> string(3) "two" } [2]=> array(1) { [0]=> string(3) "two" } [3]=> array(1) { [0]=> string(5) "three" } [4]=> array(1) { [0]=> string(5) "three" } [5]=> array(1) { [0]=> string(5) "three" } } After unique: array(1) { [0]=> array(1) { [0]=> string(3) "one" } } === configure lines for both: php-4.0.4pl1: './configure' '--with-apache=../apache_1.3.14' '--prefix=/usr' '--enable-safe-mode' '--with-exec-dir=/usr/bin' '--with-zlib' '--with-config-file-path=/etc/php3/apache' '--disable-debug' '--enable-magic-quotes' '--enable-debugger' '--enable-bcmath' '--enable-track-vars' '--enable-trans-sid' '--enable-wddx' '--with-imap' '--with-ldap' '--with-ibm-db2' '--with-system-regex' '--with-informix' '--with-pdflib=/usr/local/pdflib' '--enable-inline-optimization' '--without-gd' php-4.0.6 './configure' '--with-apache=../apache_1.3.14' '--prefix=/usr' '--enable-safe-mode' '--with-exec-dir=/usr/bin' '--with-zlib' '--with-config-file-path=/etc/php3/apache' '--disable-debug' '--enable-magic-quotes' '--enable-debugger' '--enable-bcmath' '--enable-track-vars' '--enable-trans-sid' '--enable-wddx' '--with-mcrypt' '--with-imap' '--with-ldap' '--with-ibm-db2' '--with-system-regex' '--with-informix' '--with-pdflib=/usr/local/pdflib' '--enable-inline-optimization' '--without-gd' === As a side note, in order to get php-4.0.6 to compile for both IBM DB2 and Informix, I had to apply the following: diff -Naur php-4.0.6.orig/main/internal_functions.c php-4.0.6/main/internal_func tions.c --- php-4.0.6.orig/main/internal_functions.c Fri Nov 30 11:40:20 2001 +++ php-4.0.6/main/internal_functions.c Fri Nov 30 11:40:39 2001 @@ -32,11 +32,11 @@ #include "ext/zlib/php_zlib.h" #include "ext/bcmath/php_bcmath.h" #include "ext/imap/php_imap.h" -#include "ext/informix/php_informix.h" #include "ext/ldap/php_ldap.h" #include "ext/mcrypt/php_mcrypt.h" #include "ext/mysql/php_mysql.h" #include "ext/odbc/php_odbc.h" +#include "ext/informix/php_informix.h" #include "ext/pcre/php_pcre.h" #include "ext/pdf/php_pdf.h" #include "ext/posix/php_posix.h" But thats a whole other bug report. Mcrypt would also fail to compile in 4.0.4pl1, prolly I need to downgrade it. Those are the only differences I can think of between these versions. -- Edit bug report at: http://bugs.php.net/?id=14315&edit=1