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Document floatval as the main function, doubleval as the alias.

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@57999 c90b9560-bf6c-de11-be94-00142212c4b1
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Jeroen van Wolffelaar 2001-09-21 23:35:51 +00:00
parent c16899ed43
commit 5678ecd93b
1 changed files with 52 additions and 30 deletions
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82
functions/var.xml
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@ -1,5 +1,5 @@
<?xml encoding="iso-8859-1"?>
<!-- $Revision: 1.65 $ -->
<!-- $Revision: 1.66 $ -->
<reference id="ref.var">
<title>Variable Functions</title>
<titleabbrev>Variables</titleabbrev>
@ -7,37 +7,21 @@
<refentry id="function.doubleval">
<refnamediv>
<refname>doubleval</refname>
<refpurpose>Get double value of a variable</refpurpose>
<refpurpose>Alias of <function>floatval</function></refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcprototype>
<funcdef>float <function>doubleval</function></funcdef>
<paramdef>mixed <parameter>var</parameter></paramdef>
</funcprototype>
</funcsynopsis>
<simpara>
Returns the double (floating point) value of
<parameter>var</parameter>.
</simpara>
<para>
<parameter>Var</parameter> may be any scalar type. You cannot use
<function>doubleval</function> on arrays or objects.
<informalexample>
<programlisting role="php">
$var = '122.34343The';
$double_value_of_var = doubleval ($var);
print $double_value_of_var; // prints 122.34343
</programlisting>
</informalexample>
This function is an alias of <function>floatval</function>.
</para>
<simpara>
See also <function>intval</function>,
<function>strval</function>, <function>settype</function> and
<link linkend="language.types.type-juggling">Type
juggling</link>.
</simpara>
<note>
<para>
This alias is a left-over from a function-renaming. In older versions of
PHP you'll need to use this alias of the <function>floatval</function>
function, because <function>floatval</function> wasn't yet available in
that version.
</para>
</note>
</refsect1>
</refentry>
@ -98,6 +82,42 @@ if (!isset($var)) { // evaluates false
</refsect1>
</refentry>
<refentry id="function.floatval">
<refnamediv>
<refname>floatval</refname>
<refpurpose>Get float value of a variable</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcprototype>
<funcdef>float <function>floatval</function></funcdef>
<paramdef>mixed <parameter>var</parameter></paramdef>
</funcprototype>
</funcsynopsis>
<simpara>
Returns the <type>float</type> value of <parameter>var</parameter>.
</simpara>
<para>
<parameter>Var</parameter> may be any scalar type. You cannot use
<function>floatval</function> on arrays or objects.
<informalexample>
<programlisting role="php">
$var = '122.34343The';
$float_value_of_var = floatval ($var);
print $float_value_of_var; // prints 122.34343
</programlisting>
</informalexample>
</para>
<simpara>
See also <function>intval</function>,
<function>strval</function>, <function>settype</function> and
<link linkend="language.types.type-juggling">Type
juggling</link>.
</simpara>
</refsect1>
</refentry>
<refentry id="function.gettype">
<refnamediv>
<refname>gettype</refname>
@ -304,7 +324,7 @@ echo get_resource_type($doc->doc)."\n";
</para>
</note>
<simpara>
See also <function>doubleval</function>,
See also <function>floatval</function>,
<function>strval</function>, <function>settype</function> and
<link linkend="language.types.type-juggling">Type
juggling</link>.
@ -1008,7 +1028,9 @@ if (!odbc_execute ($stmt, &amp;$sqldata)) {
<itemizedlist>
<listitem><simpara>"boolean"</simpara></listitem>
<listitem><simpara>"integer"</simpara></listitem>
<listitem><simpara>"double"</simpara></listitem>
<listitem><simpara>"double" (this is for historical reasons only,
"double" will be returned when the type is
<type>float</type>.</simpara></listitem>
<listitem><simpara>"string"</simpara></listitem>
<listitem><simpara>"array"</simpara></listitem>
<listitem><simpara>"object"</simpara></listitem>
@ -1061,7 +1083,7 @@ settype($bar, "string"); // $bar is now "1" (string)
<function>strval</function> on arrays or objects.
</simpara>
<simpara>
See also <function>doubleval</function>,
See also <function>floatval</function>,
<function>intval</function>, <function>settype</function> and
<link linkend="language.types.type-juggling">Type
juggling</link>.