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if: link to information on what evaluates to &false;

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@65790 c90b9560-bf6c-de11-be94-00142212c4b1
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jim winstead 2001-12-20 23:17:37 +00:00
parent 599aee8434
commit 1b7ef904fb
1 changed files with 9 additions and 5 deletions
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14
language/control-structures.xml
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@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.47 $ -->
<!-- $Revision: 1.48 $ -->
<chapter id="control-structures">
<title>Control Structures</title>
@ -31,10 +31,14 @@ if (expr)
</informalexample>
</para>
<simpara>
As described in the section about expressions, expr is evaluated
to its truth value. If <replaceable>expr</replaceable> evaluates
to &true;, PHP will execute statement, and if it
evaluates to &false; - it'll ignore it.
As described in <link linkend="language.expressions">the section about
expressions</link>, <replaceable>expr</replaceable> is evaluated to its
Boolean value. If <replaceable>expr</replaceable> evaluates to &true;,
PHP will execute <replaceable>statement</replaceable>, and if it evaluates
to &false; - it'll ignore it. More information about what values evaluate
to &false; can be found in the <link
linkend="language.types.boolean.casting">'Converting to boolean'</link>
section>.
</simpara>
<para>
The following example would display <computeroutput>a is bigger