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

From: Date: Thu, 14 Nov 2013 23:03:46 +0000
Subject: Re: [RFC] Comparison and conversion inconsistency - need more info
References: 1 2 3 4 5 6 7 8 9 10 11 12 13  Groups: php.internals 
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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 =================================================================== --- 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[

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