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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Control Structures</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="language.operators.type.html">Type Operators</a></div> <div class="next" style="text-align: right; float: right;"><a href="control-structures.if.html">if</a></div> <div class="up"><a href="langref.html">Language Reference</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div> <h1>Control Structures</h1><h2>Table of Contents</h2><ul class="chunklist chunklist_chapter"><li><a href="control-structures.if.html">if</a></li><li><a href="control-structures.else.html">else</a></li><li><a href="control-structures.elseif.html">elseif/else if</a></li><li><a href="control-structures.alternative-syntax.html">Alternative syntax for control structures</a></li><li><a href="control-structures.while.html">while</a></li><li><a href="control-structures.do.while.html">do-while</a></li><li><a href="control-structures.for.html">for</a></li><li><a href="control-structures.foreach.html">foreach</a></li><li><a href="control-structures.break.html">break</a></li><li><a href="control-structures.continue.html">continue</a></li><li><a href="control-structures.switch.html">switch</a></li><li><a href="control-structures.declare.html">declare</a></li><li><a href="function.return.html">return</a></li><li><a href="function.require.html">require</a></li><li><a href="function.include.html">include</a></li><li><a href="function.require-once.html">require_once</a></li><li><a href="function.include-once.html">include_once</a></li></ul> <div id="control-structures.intro" class="sect1"> <h2 class="title">Introduction</h2> <p class="simpara"> Any PHP script is built out of a series of statements. A statement can be an assignment, a function call, a loop, a conditional statement or even a statement that does nothing (an empty statement). Statements usually end with a semicolon. In addition, statements can be grouped into a statement-group by encapsulating a group of statements with curly braces. A statement-group is a statement by itself as well. The various statement types are described in this chapter. </p> </div> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="language.operators.type.html">Type Operators</a></div> <div class="next" style="text-align: right; float: right;"><a href="control-structures.if.html">if</a></div> <div class="up"><a href="langref.html">Language Reference</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>?? 快捷鍵說明
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