Remove references to "double" and use float instead (#1848)

appendices/migration71/incompatible.xml

@@ -561,7 +561,7 @@ $f = function ($param) use ($param) {};
   <title>JSON encoding and decoding</title>
   <para>
    The <parameter>serialize_precision</parameter> ini setting now controls the
-   serialization precision when encoding doubles.
+   serialization precision when encoding <type>float</type>s.
   </para>
   <para>
    Decoding an empty key now results in an empty property name, rather than 

language/types.xml

@@ -30,7 +30,7 @@
 
    <listitem>
     <simpara>
-     <type>float</type> (floating-point number, aka <type>double</type>)
+     <type>float</type> (floating-point number)
     </simpara>
    </listitem>
 
@@ -93,11 +93,6 @@
    </listitem>
 
   </itemizedlist>
-
-  <simpara>
-   Some references to the type "double" may remain in the manual. Consider
-   double the same as float; the two names exist only for historic reasons.
-  </simpara>
   
   <simpara>
    The type of a variable is not usually set by the programmer; rather, it is

language/variables.xml

@@ -148,7 +148,7 @@ var_dump($unset_str);
 $unset_int += 25; // 0 + 25 => 25
 var_dump($unset_int);
 
-// Float/double usage; outputs 'float(1.25)'
+// Float usage; outputs 'float(1.25)'
 $unset_float += 1.25;
 var_dump($unset_float);
 

reference/datetime/functions/date-parse.xml

@@ -155,20 +155,32 @@ var_dump(date_parse("2006-12-12 10:00:00.5"));
     <screen>
 <![CDATA[
 array(12) {
-  'year' => int(2006)
-  'month' => int(12)
-  'day' => int(12)
-  'hour' => int(10)
-  'minute' => int(0)
-  'second' => int(0)
-  'fraction' => double(0.5)
-  'warning_count' => int(0)
-  'warnings' => array(0) {
+  ["year"]=>
+  int(2006)
+  ["month"]=>
+  int(12)
+  ["day"]=>
+  int(12)
+  ["hour"]=>
+  int(10)
+  ["minute"]=>
+  int(0)
+  ["second"]=>
+  int(0)
+  ["fraction"]=>
+  float(0.5)
+  ["warning_count"]=>
+  int(0)
+  ["warnings"]=>
+  array(0) {
   }
-  'error_count' => int(0)
-  'errors' => array(0) {
+  ["error_count"]=>
+  int(0)
+  ["errors"]=>
+  array(0) {
   }
-  'is_localtime' => bool(false)
+  ["is_localtime"]=>
+  bool(false)
 }
 ]]>
     </screen>
@@ -193,25 +205,42 @@ var_dump(date_parse("June 2nd, 2022, 10:28:17 BST"));
     <screen>
 <![CDATA[
 array(16) {
-  'year' => int(2022)
-  'month' => int(6)
-  'day' => int(2)
-  'hour' => int(10)
-  'minute' => int(28)
-  'second' => int(17)
-  'fraction' => double(0)
-  'warning_count' => int(0)
-  'warnings' => array(0) {
+  ["year"]=>
+  int(2022)
+  ["month"]=>
+  int(6)
+  ["day"]=>
+  int(2)
+  ["hour"]=>
+  int(10)
+  ["minute"]=>
+  int(28)
+  ["second"]=>
+  int(17)
+  ["fraction"]=>
+  float(0)
+  ["warning_count"]=>
+  int(0)
+  ["warnings"]=>
+  array(0) {
   }
-  'error_count' => int(0)
-  'errors' => array(0) {
+  ["error_count"]=>
+  int(0)
+  ["errors"]=>
+  array(0) {
   }
-  'is_localtime' => bool(true)
-  'zone_type' => int(2)
-  'zone' => int(0)
-  'is_dst' => bool(true)
-  'tz_abbr' => string(3) "BST"
-}]]>
+  ["is_localtime"]=>
+  bool(true)
+  ["zone_type"]=>
+  int(2)
+  ["zone"]=>
+  int(0)
+  ["is_dst"]=>
+  bool(true)
+  ["tz_abbr"]=>
+  string(3) "BST"
+}
+]]>
     </screen>
    </example>
    <example>
@@ -227,23 +256,38 @@ var_dump(date_parse("June 2nd, 2022, 10:28:17 Europe/London"));
     <screen>
 <![CDATA[
 array(14) {
-  'year' => int(2022)
-  'month' => int(6)
-  'day' => int(2)
-  'hour' => int(10)
-  'minute' => int(28)
-  'second' => int(17)
-  'fraction' => double(0)
-  'warning_count' => int(0)
-  'warnings' => array(0) {
+  ["year"]=>
+  int(2022)
+  ["month"]=>
+  int(6)
+  ["day"]=>
+  int(2)
+  ["hour"]=>
+  int(10)
+  ["minute"]=>
+  int(28)
+  ["second"]=>
+  int(17)
+  ["fraction"]=>
+  float(0)
+  ["warning_count"]=>
+  int(0)
+  ["warnings"]=>
+  array(0) {
   }
-  'error_count' => int(0)
-  'errors' => array(0) {
+  ["error_count"]=>
+  int(0)
+  ["errors"]=>
+  array(0) {
   }
-  'is_localtime' => bool(true)
-  'zone_type' => int(3)
-  'tz_id' => string(13) "Europe/London"
-}]]>
+  ["is_localtime"]=>
+  bool(true)
+  ["zone_type"]=>
+  int(3)
+  ["tz_id"]=>
+  string(13) "Europe/London"
+}
+]]>
     </screen>
    </example>
   </para>
@@ -265,21 +309,34 @@ var_dump(date_parse("June 2nd, 2022"));
     <screen>
 <![CDATA[
 array(12) {
-  'year' => int(2022)
-  'month' => int(6)
-  'day' => int(2)
-  'hour' => bool(false)
-  'minute' => bool(false)
-  'second' => bool(false)
-  'fraction' => bool(false)
-  'warning_count' => int(0)
-  'warnings' => array(0) {
+  ["year"]=>
+  int(2022)
+  ["month"]=>
+  int(6)
+  ["day"]=>
+  int(2)
+  ["hour"]=>
+  bool(false)
+  ["minute"]=>
+  bool(false)
+  ["second"]=>
+  bool(false)
+  ["fraction"]=>
+  bool(false)
+  ["warning_count"]=>
+  int(0)
+  ["warnings"]=>
+  array(0) {
   }
-  'error_count' => int(0)
-  'errors' => array(0) {
+  ["error_count"]=>
+  int(0)
+  ["errors"]=>
+  array(0) {
   }
-  'is_localtime' => bool(false)
-}]]>
+  ["is_localtime"]=>
+  bool(false)
+}
+]]>
     </screen>
    </example>
   </para>
@@ -301,30 +358,49 @@ var_dump(date_parse("2006-12-12 10:00:00.5 +1 week +1 hour"));
     <screen>
 <![CDATA[
 array(13) {
-  'year' => int(2006)
-  'month' => int(12)
-  'day' => int(12)
-  'hour' => int(10)
-  'minute' => int(0)
-  'second' => int(0)
-  'fraction' => double(0.5)
-  'warning_count' => int(0)
-  'warnings' => array(0) {
+  ["year"]=>
+  int(2006)
+  ["month"]=>
+  int(12)
+  ["day"]=>
+  int(12)
+  ["hour"]=>
+  int(10)
+  ["minute"]=>
+  int(0)
+  ["second"]=>
+  int(0)
+  ["fraction"]=>
+  float(0.5)
+  ["warning_count"]=>
+  int(0)
+  ["warnings"]=>
+  array(0) {
   }
-  'error_count' => int(0)
-  'errors' => array(0) {
+  ["error_count"]=>
+  int(0)
+  ["errors"]=>
+  array(0) {
   }
-  'is_localtime' => bool(false)
-  'relative' =>
+  ["is_localtime"]=>
+  bool(false)
+  ["relative"]=>
   array(6) {
-    'year' => int(0)
-    'month' => int(0)
-    'day' => int(7)
-    'hour' => int(1)
-    'minute' => int(0)
-    'second' => int(0)
+    ["year"]=>
+    int(0)
+    ["month"]=>
+    int(0)
+    ["day"]=>
+    int(7)
+    ["hour"]=>
+    int(1)
+    ["minute"]=>
+    int(0)
+    ["second"]=>
+    int(0)
   }
-}]]>
+}
+]]>
     </screen>
    </example>
   </para>
@@ -349,31 +425,51 @@ var_dump(date_parse("Thursday, June 2nd"));
     <screen>
 <![CDATA[
 array(13) {
-  'year' => bool(false)
-  'month' => int(6)
-  'day' => int(2)
-  'hour' => int(0)
-  'minute' => int(0)
-  'second' => int(0)
-  'fraction' => double(0)
-  'warning_count' => int(0)
-  'warnings' => array(0) {
+  ["year"]=>
+  bool(false)
+  ["month"]=>
+  int(6)
+  ["day"]=>
+  int(2)
+  ["hour"]=>
+  int(0)
+  ["minute"]=>
+  int(0)
+  ["second"]=>
+  int(0)
+  ["fraction"]=>
+  float(0)
+  ["warning_count"]=>
+  int(0)
+  ["warnings"]=>
+  array(0) {
   }
-  'error_count' => int(0)
-  'errors' => array(0) {
+  ["error_count"]=>
+  int(0)
+  ["errors"]=>
+  array(0) {
   }
-  'is_localtime' => bool(false)
-  'relative' =>
+  ["is_localtime"]=>
+  bool(false)
+  ["relative"]=>
   array(7) {
-    'year' => int(0)
-    'month' => int(0)
-    'day' => int(0)
-    'hour' => int(0)
-    'minute' => int(0)
-    'second' => int(0)
-    'weekday' => int(4)
+    ["year"]=>
+    int(0)
+    ["month"]=>
+    int(0)
+    ["day"]=>
+    int(0)
+    ["hour"]=>
+    int(0)
+    ["minute"]=>
+    int(0)
+    ["second"]=>
+    int(0)
+    ["weekday"]=>
+    int(4)
   }
-}]]>
+}
+]]>
     </screen>
    </example>
   </para>

reference/geoip/functions/geoip-record-by-name.xml

@@ -67,12 +67,12 @@
     </listitem>
     <listitem>
      <simpara>
-      "latitude" -- The Latitude as signed double.
+      "latitude" -- The Latitude as signed <type>float</type>.
      </simpara>
     </listitem>
     <listitem>
      <simpara>
-      "longitude" -- The Longitude as signed double.
+      "longitude" -- The Longitude as signed <type>float</type>.
      </simpara>
     </listitem>
     <listitem>

reference/gmagick/gmagick/setsamplingfactors.xml

@@ -26,7 +26,7 @@
      <term><parameter>factors</parameter></term>
      <listitem>
       <para>
-       An array of doubles representing the sampling factor for each color component (in RGB order).
+       An array of <type>float</type>s representing the sampling factor for each color component (in RGB order).
       </para>
      </listitem>
     </varlistentry>

reference/gmagick/gmagickdraw/getstrokeopacity.xml

@@ -16,9 +16,6 @@
   <para>
    Returns the opacity of stroked object outlines.
   </para>
-
-   
-
  </refsect1>
 
  <refsect1 role="parameters">
@@ -29,7 +26,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns a double describing the opacity. 
+   Returns a <type>float</type> describing the opacity.
   </para>
  </refsect1>
 

reference/gmagick/gmagickdraw/getstrokewidth.xml

@@ -14,11 +14,8 @@
    <void />
   </methodsynopsis>
   <para>
-   Returns the width of the stroke used to draw object outlines. 
+   Returns the width of the stroke used to draw object outlines.
   </para>
-
-   
-
  </refsect1>
 
  <refsect1 role="parameters">
@@ -29,7 +26,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns a double describing the stroke width. 
+   Returns a <type>float</type> describing the stroke width.
   </para>
  </refsect1>
 

reference/imagick/imagick/getimagechanneldistortions.xml

@@ -32,7 +32,7 @@
        Imagick object containing the reference image
       </para>
      </listitem>
-    </varlistentry>    
+    </varlistentry>
     <varlistentry>
      <term><parameter>metric</parameter></term>
      <listitem>
@@ -56,7 +56,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns a double describing the channel distortion. 
+   Returns a <type>float</type> describing the channel distortion.
   </para>
  </refsect1>
 

reference/imagick/imagickdraw/getstrokeopacity.xml

@@ -21,7 +21,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns a double describing the opacity.
+   Returns a <type>float</type> describing the opacity.
   </para>
  </refsect1>
 

reference/imagick/imagickdraw/getstrokewidth.xml

@@ -21,7 +21,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-   Returns a double describing the stroke width.
+   Returns a <type>float</type> describing the stroke width.
   </para>
  </refsect1>
 

reference/intl/numberformatter/parse-currency.xml

@@ -29,7 +29,7 @@
    <methodparam choice="opt"><type>int</type><parameter role="reference">offset</parameter><initializer>&null;</initializer></methodparam>
   </methodsynopsis>
   <para>
-   Parse a string into a double and a currency using the current formatter.
+   Parse a string into a float and a currency using the current formatter.
   </para>
  </refsect1>
 

reference/json/functions/json-encode.xml

@@ -131,7 +131,7 @@
        <entry>
         <link linkend="ini.serialize-precision">serialize_precision</link> is
         used instead of <link linkend="ini.precision">precision</link> when
-        encoding double values.
+        encoding <type>float</type> values.
        </entry>
       </row>
      </tbody>

reference/math/book.xml

@@ -11,16 +11,28 @@
   &reftitle.intro;
   <para>
    These math functions will only handle values within the range of
-   the <type>int</type> and <type>float</type> types on your computer
-   (this corresponds currently to the C types long resp. double).
-   If you need to handle bigger numbers, take a look at the <link
-   linkend="book.bc">arbitrary precision math functions</link>.
+   the <type>int</type> and <type>float</type> types.
+   To handle larger numbers, take a look at the
+   <link linkend="book.bc">arbitrary precision math</link> or
+   <link linkend="book.gmp">GNU Multiple Precision functions</link> functions.
   </para>
-  <simpara>
-   See also the manual page on 
-   <link linkend="language.operators.arithmetic">arithmetic
-   operators</link>. 
-  </simpara>
+
+  <section>
+   &reftitle.seealso;
+   <para>
+    <simplelist>
+     <member>
+      <link linkend="language.operators.arithmetic">arithmetic operators</link>
+     </member>
+     <member>
+      <link linkend="book.bc">Arbitrary precision math functions</link>
+     </member>
+     <member>
+      <link linkend="book.gmp">GNU Multiple Precision functions</link>
+     </member>
+    </simplelist>
+   </para>
+  </section>
  </preface>
  <!-- }}} -->
  

reference/math/functions/abs.xml

@@ -72,12 +72,20 @@
     <programlisting role="php">
 <![CDATA[
 <?php
-echo abs(-4.2); // 4.2 (double/float)
-echo abs(5);    // 5 (integer)
-echo abs(-5);   // 5 (integer)
+var_dump(abs(-4.2));
+var_dump(abs(5));
+var_dump(abs(-5));
 ?>
 ]]>
     </programlisting>
+    &example.outputs;
+    <screen>
+<![CDATA[
+float(4.2)
+int(5)
+int(5)
+]]>
+    </screen>
    </example>
   </para>
  </refsect1>

reference/math/functions/base-convert.xml

@@ -28,7 +28,7 @@
   <warning>
    <simpara>
     <function>base_convert</function> may lose precision on large numbers
-    due to properties related to the internal "double" or "float" type used.
+    due to properties related to the internal <type>float</type> type used.
     Please see the <link linkend="language.types.float">Floating point numbers</link>
     section in the manual for more specific information and limitations.
    </simpara>

reference/memcached/memcached/cas.xml

@@ -23,7 +23,7 @@
    <parameter>cas_token</parameter> parameter which is a unique 64-bit
    value assigned to the existing item by memcache. See the documentation for 
    <methodname>Memcached::get*</methodname> methods for how to obtain this
-   token. Note that the token is represented as a double due to the
+   token. Note that the token is represented as a float due to the
    limitations of PHP's integer space.
   </para>
  </refsect1>

reference/mysqli/mysqli_stmt/bind-param.xml

@@ -69,15 +69,15 @@
          <tbody>
           <row>
            <entry>i</entry>
-           <entry>corresponding variable has type integer</entry>
+           <entry>corresponding variable has type <type>int</type></entry>
           </row>
           <row>
            <entry>d</entry>
-           <entry>corresponding variable has type double</entry>
+           <entry>corresponding variable has type <type>float</type></entry>
           </row>
           <row>
            <entry>s</entry>
-           <entry>corresponding variable has type string</entry>
+           <entry>corresponding variable has type <type>string</type></entry>
           </row>
           <row>
            <entry>b</entry>

reference/solr/solrquery/gethighlightregexslop.xml

@@ -27,7 +27,7 @@
  <refsect1 role="returnvalues">
   &reftitle.returnvalues;
   <para>
-Returns a double on success and &null; if not set.
+   Returns a <type>float</type> on success and &null; if not set.
   </para>
  </refsect1>
 

reference/swoole/swoole/server/taskwaitmulti.xml

@@ -12,7 +12,7 @@
   <methodsynopsis>
    <modifier>public</modifier> <type>void</type><methodname>Swoole\Server::taskWaitMulti</methodname>
    <methodparam><type>array</type><parameter>tasks</parameter></methodparam>
-   <methodparam choice="opt"><type>double</type><parameter>timeout_ms</parameter></methodparam>
+   <methodparam choice="opt"><type>float</type><parameter>timeout_ms</parameter></methodparam>
   </methodsynopsis>
   <para>
 

reference/xlswriter/xlsx-kernel/insert-text.xml

@@ -13,7 +13,7 @@
    <modifier>public</modifier> <methodname>Vtiful\Kernel\Excel::insertText</methodname>
    <methodparam><type>int</type><parameter>row</parameter></methodparam>
    <methodparam><type>int</type><parameter>column</parameter></methodparam>
-   <methodparam><type>string</type><type>int</type><type>double</type><parameter>data</parameter></methodparam>
+   <methodparam><type class="union"><type>int</type><type>float</type><type>string</type></type><parameter>data</parameter></methodparam>
    <methodparam choice="opt"><type>string</type><parameter>format</parameter></methodparam>
   </methodsynopsis>
   <para>