Re: [RFC] Comparison and conversion inconsistency - need more info

Hi, What about the following PHP logic: var_dump(null == 0); // TRUE var_dump(null < -1); // TRUE var_dump(null > -1); // FALSE How can you explain that ? Greetings Marc Am 15.11.2013 00:03, schrieb Yasuo Ohgaki: > 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 > =================================================================== > --- operators.xml (リビジョン 332115) > +++ operators.xml (作業コピー) > @@ -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="php"> > +<![CDATA[ > +<?php > +// Bool and null are compared as bool always > +var_dump(1 == TRUE); // TRUE - same as (bool)1 == TRUE > +var_dump(0 == FALSE); // TRUE - same as (bool)0 == 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="php"> > <![CDATA[ >