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some is_* functions.

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@25074 c90b9560-bf6c-de11-be94-00142212c4b1
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Sterling Hughes 2000-05-26 02:02:06 +00:00
parent 57f128cfa7
commit e7a14cb803
1 changed files with 73 additions and 0 deletions
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73
functions/var.xml
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@ -214,6 +214,30 @@ if (!isset($var)) { // evaluates false
</para>
</refsect1>
</refentry>
<refentry id="function.is-bool">
<refnamediv>
<refname>is_bool</refname>
<refpurpose>
Finds out whether a variable is a boolean
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int
<function>is_bool</function>
</funcdef>
<paramdef>mixed
<parameter>var</parameter>
</paramdef>
</funcsynopsis>
<para>
Returns true if the <parameter>var</parameter> parameter is
a boolean.
</para>
</refsect1>
</refentry>
<refentry id="function.is-double">
<refnamediv>
@ -435,6 +459,31 @@ if (!isset($var)) { // evaluates false
</simpara>
</refsect1>
</refentry>
<refentry id="function.is-resource">
<refnamediv>
<refname>is_resource</refname>
<refpurpose>
Finds whether a variable is a resource
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int
<function>is_resource</function>
</funcdef>
<paramdef>mixed
<parameter>var</parameter>
</paramdef>
</funcsynopsis>
<para>
The <function>is_resource</function> returns true if the variable
given by the <parameter>var</parameter> parameter is a resource, otherwise
it returns false.
</para>
</refsect1>
</refentry>
<refentry id="function.is-string">
<refnamediv>
@ -463,6 +512,30 @@ if (!isset($var)) { // evaluates false
</para>
</refsect1>
</refentry>
<refentry id="function.is-writable">
<refnamediv>
<refname>is_writable</refname>
<refpurpose>
Finds out whether or not you can write to a file
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<funcsynopsis>
<funcdef>int
<function>is_writable</function>
</funcdef>
<paramdef>mixed
<parameter>filename</parameter>
</paramdef>
</funcsynopsis>
<para>
The <function>is_writable</function> function returns true if the file pointed
to by the <parameter>filename</parameter> parameter can be written to.
</para>
</refsect1>
</refentry>
<refentry id="function.isset">
<refnamediv>