Bug #70678 [NEW]: PHP7 returns true when false is expected

From: Date: Fri, 09 Oct 2015 14:21:18 +0000
Subject: Bug #70678 [NEW]: PHP7 returns true when false is expected
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-196470@lists.php.net to get a copy of this message
From:             f dot bosch at genkgo dot nl
Operating system: worker-linux-docker
PHP version:      7.0.0RC4
Package:          XSLT related
Bug Type:         Bug
Bug description:PHP7 returns true when false is expected

Description:
------------
If you are using php functions inside an XSL script and return 'false',
then XSL sees it as 'true', and vice versa.

Test script:
---------------
PHP script

$xslDoc = new DOMDocument();
$xslDoc->load('Stubs/php-functions.xsl');

$xmlDoc = new DOMDocument();
$xmlDoc->load('Stubs/collection.xml');

$native = new \XSLTProcessor();
$native->importStylesheet($xslDoc);
$native->registerPHPFunctions();
$nativeResult = trim($native->transformToXML($xmlDoc));

$transpiler = new XsltProcessor();
$transpiler->importStylesheet($xslDoc);
$transpiler->registerPHPFunctions();
echo $transpiler->transformToXML($xmlDoc);

XML Document

<collection />

XSL Sheet

<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:php="http://php.net/xsl">
    
    <xsl:output method="xml"
                indent="no"
                omit-xml-declaration="yes"
                encoding="UTF-8"/>

    <xsl:template match="collection">
        <xsl:value-of select="php:functionString('strpos', 'Hello',
'World')" />
    </xsl:template>

</xsl:stylesheet>

Expected output: false
Actual output: true

Expected result:
----------------
false

Actual result:
--------------
true

-- 
Edit bug report at https://bugs.php.net/bug.php?id=70678&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=70678&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=70678&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=70678&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=70678&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=70678&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=70678&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=70678&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=70678&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=70678&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=70678&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=70678&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=70678&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=70678&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70678&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=70678&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=70678&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=70678&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=70678&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=70678&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=70678&r=mysqlcfg



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