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* Add table showing supported inputs and expected outputs.
* Add see also to printf() / sprintf(). git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@279425 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Daniel Convissor
parent
1ac3232850
commit
d14ed0797f
1 changed files with 136 additions and 3 deletions
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@ -1,5 +1,5 @@
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<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.12 $ -->
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<!-- $Revision: 1.13 $ -->
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<refentry xml:id="function.decbin" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>decbin</refname>
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@ -13,8 +13,7 @@
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</methodsynopsis>
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<para>
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Returns a string containing a binary representation of the given
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<parameter>number</parameter> argument. The largest number that can be converted is
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4294967295 in decimal resulting to a string of 32 1's.
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<parameter>number</parameter> argument.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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@ -27,6 +26,135 @@
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<para>
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Decimal value to convert
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</para>
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<table>
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<title>Range of inputs on 32-bit machines</title>
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<tgroup cols="3">
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<colspec colname="c1" />
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<colspec colname="c2" />
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<colspec colname="c3" />
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<thead>
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<row>
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<entry>positive <parameter>number</parameter></entry>
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<entry>negative <parameter>number</parameter></entry>
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<entry>return value</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>0</entry>
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<entry></entry>
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<entry>0</entry>
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</row>
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<row>
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<entry>1</entry>
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<entry></entry>
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<entry>1</entry>
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</row>
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<row>
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<entry>2</entry>
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<entry></entry>
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<entry>10</entry>
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</row>
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<row>
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<entry namest="c1" nameend="c3">... normal progression ...</entry>
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</row>
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<row>
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<entry>2147483646</entry>
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<entry></entry>
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<entry>1111111111111111111111111111110</entry>
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</row>
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<row>
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<entry>2147483647 (largest signed integer)</entry>
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<entry></entry>
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<entry>1111111111111111111111111111111 (31 1's)</entry>
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</row>
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<row>
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<entry>2147483648</entry>
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<entry>-2147483648</entry>
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<entry>10000000000000000000000000000000</entry>
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</row>
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<row>
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<entry namest="c1" nameend="c3">... normal progression ...</entry>
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</row>
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<row>
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<entry>4294967294</entry>
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<entry>-2</entry>
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<entry>11111111111111111111111111111110</entry>
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</row>
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<row>
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<entry>4294967295 (largest unsigned integer)</entry>
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<entry>-1</entry>
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<entry>11111111111111111111111111111111 (32 1's)</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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<table>
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<title>Range of inputs on 64-bit machines</title>
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<tgroup cols="3">
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<colspec colname="c1" />
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<colspec colname="c2" />
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<colspec colname="c3" />
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<thead>
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<row>
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<entry>positive <parameter>number</parameter></entry>
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<entry>negative <parameter>number</parameter></entry>
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<entry>return value</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>0</entry>
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<entry></entry>
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<entry>0</entry>
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</row>
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<row>
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<entry>1</entry>
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<entry></entry>
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<entry>1</entry>
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</row>
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<row>
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<entry>2</entry>
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<entry></entry>
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<entry>10</entry>
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</row>
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<row>
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<entry namest="c1" nameend="c3">... normal progression ...</entry>
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</row>
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<row>
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<entry>9223372036854775806</entry>
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<entry></entry>
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<entry>111111111111111111111111111111111111111111111111111111111111110</entry>
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</row>
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<row>
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<entry>9223372036854775807 (largest signed integer)</entry>
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<entry></entry>
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<entry>111111111111111111111111111111111111111111111111111111111111111 (31 1's)</entry>
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</row>
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<row>
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<entry></entry>
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<entry>-9223372036854775808</entry>
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<entry>1000000000000000000000000000000000000000000000000000000000000000</entry>
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</row>
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<row>
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<entry namest="c1" nameend="c3">... normal progression ...</entry>
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</row>
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<row>
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<entry></entry>
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<entry>-2</entry>
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<entry>1111111111111111111111111111111111111111111111111111111111111110</entry>
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</row>
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<row>
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<entry></entry>
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<entry>-1</entry>
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<entry>1111111111111111111111111111111111111111111111111111111111111111 (64 1's)</entry>
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</row>
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</tbody>
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</tgroup>
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</table>
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</listitem>
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</varlistentry>
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</variablelist>
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@ -69,6 +197,11 @@ echo decbin(26);
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<member><function>decoct</function></member>
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<member><function>dechex</function></member>
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<member><function>base_convert</function></member>
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<member>
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<function>printf</function> or <function>sprintf</function>
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using <literal>%b</literal>, <literal>%032b</literal> or
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<literal>%064b</literal> as the format
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</member>
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</simplelist>
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</para>
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</refsect1>
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