Description:
------------
In short-hand ternary comparison, variables are always evaluated as false.

This bug was found in PHP versions 5.4.23 and 5.4.24, when running as a module on LiteSpeed server, as compiled using EasyApache, but NOT when running in CLI. So it has to do with LiteSpeed, it seems, but nevertheless the issue somehow compiles into a core PHP issue.


Configure command:

'./configure' '--disable-fileinfo' '--enable-bcmath' '--enable-calendar' '--enable-exif' '--enable-ftp' '--enable-gd-native-ttf' '--enable-libxml' '--enable-mbstring' '--enable-pdo=shared' '--enable-soap' '--enable-sockets' '--enable-wddx' '--enable-zip' '--prefix=/usr/local' '--with-bz2' '--with-curl=/opt/curlssl/' '--with-curlwrappers' '--with-freetype-dir=/usr' '--with-gd' '--with-gettext' '--with-imap=/opt/php_with_imap_client/' '--with-imap-ssl=/usr' '--with-jpeg-dir=/usr' '--with-kerberos' '--with-libdir=lib64' '--with-libexpat-dir=/usr' '--with-libxml-dir=/opt/xml2' '--with-libxml-dir=/opt/xml2/' '--with-mcrypt=/opt/libmcrypt/' '--with-mm=/opt/mm/' '--with-mysql=/usr' '--with-mysql-sock=/var/lib/mysql/mysql.sock' '--with-mysqli=/usr/bin/mysql_config' '--with-openssl=/usr' '--with-openssl-dir=/usr' '--with-pcre-regex=/opt/pcre' '--with-pdo-mysql=shared' '--with-pdo-sqlite=shared' '--with-pic' '--with-png-dir=/usr' '--with-pspell' '--with-tidy=/opt/tidy/' '--with-xmlrpc' '--with-xpm-dir=/usr' '--with-xsl=/opt/xslt/' '--with-zlib' '--with-zlib-dir=/usr' '--with-litespeed' 

Test script:
---------------
$v = 'Correct';
echo ($v ? $v: 'Incorrect');  // Echoes "Correct"
echo ($v ?: 'Incorrect');     // Echoes "Incorrect"


Expected result:
----------------
"Correct Correct"

Actual result:
--------------
"Correct Incorrect"