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To: Sanford Whiteman <swhitemanlistens-software@cypressintegrated.com>
Cc: Rowan Collins <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=001a11c3ee6a751fc304eb2b1ad3
Subject: Re: [PHP-DEV] [RFC] Comparison and conversion inconsistency - need
 more info
From: yohgaki@ohgaki.net (Yasuo Ohgaki)

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Content-Type: text/plain; charset=UTF-8
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Hi all,

On Tue, Nov 12, 2013 at 4:03 AM, Sanford Whiteman <
swhitemanlistens-software@cypressintegrated.com> wrote:

> > You don't have to think the current documentation is awful to find ways
> > of improving it.
>
> Sure, go for it!


I wrote my misunderstanding to my personal blog. It seems many people
misunderstand it, just like me :)

Any improvement/correction?
min() manual page is better to be updated. I'll add min() example blow to
min() manual
page also.

Index: operators.xml
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
--- operators.xml (=E3=83=AA=E3=83=93=E3=82=B8=E3=83=A7=E3=83=B3 332115)
+++ operators.xml (=E4=BD=9C=E6=A5=AD=E3=82=B3=E3=83=94=E3=83=BC)
@@ -1262,7 +1262,7 @@
       <row>
        <entry><type>bool</type> or <type>null</type></entry>
        <entry>anything</entry>
-       <entry>Convert to <type>bool</type>, &false; &lt; &true;</entry>
+       <entry>Convert to <type>bool</type> both side, &false; &lt;
&true;</entry>
       </row>
       <row>
        <entry><type>object</type></entry>
@@ -1298,8 +1298,28 @@
      </tbody>
     </tgroup>
    </table>
+
    <para>
     <example>
+     <title>Boolean/null comparison</title>
+     <programlisting role=3D"php">
+<![CDATA[
+<?php
+// Bool and null are compared as bool always
+var_dump(1 =3D=3D TRUE);  // TRUE - same as (bool)1 =3D=3D TRUE
+var_dump(0 =3D=3D FALSE); // TRUE - same as (bool)0 =3D=3D FALSE
+var_dump(100 < TRUE); // FALSE - same as (bool)100 < TRUE
+var_dump(-10 < FALSE);// FALSE - same as (bool)-10 < FALSE
+var_dunp(min(-100,-10, NULL, 10, 100); // NULL - (bool)NULL < (bool)-100
is FALSE < TRUE
+?>
+]]>
+     </programlisting>
+    </example>
+   </para>
+
+
+   <para>
+    <example>
      <title>Transcription of standard array comparison</title>
      <programlisting role=3D"php">
 <![CDATA[

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