source: www/manuals/PHP_manual/function.defined.html@ 1

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1<HTML
2><HEAD
3><TITLE
4>defined</TITLE
5><META
6NAME="GENERATOR"
7CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
8REL="HOME"
9TITLE="Manuál PHP"
10HREF="index.html"><LINK
11REL="UP"
12TITLE="Smí¹ené funkce"
13HREF="ref.misc.html"><LINK
14REL="PREVIOUS"
15TITLE="define"
16HREF="function.define.html"><LINK
17REL="NEXT"
18TITLE="die"
19HREF="function.die.html"><META
20HTTP-EQUIV="Content-type"
21CONTENT="text/html; charset=ISO-8859-2"></HEAD
22><BODY
23CLASS="refentry"
24BGCOLOR="#FFFFFF"
25TEXT="#000000"
26LINK="#0000FF"
27VLINK="#840084"
28ALINK="#0000FF"
29><DIV
30CLASS="NAVHEADER"
31><TABLE
32SUMMARY="Header navigation table"
33WIDTH="100%"
34BORDER="0"
35CELLPADDING="0"
36CELLSPACING="0"
37><TR
38><TH
39COLSPAN="3"
40ALIGN="center"
41>Manuál PHP</TH
42></TR
43><TR
44><TD
45WIDTH="10%"
46ALIGN="left"
47VALIGN="bottom"
48><A
49HREF="function.define.html"
50ACCESSKEY="P"
51>Pøedcházející</A
52></TD
53><TD
54WIDTH="80%"
55ALIGN="center"
56VALIGN="bottom"
57></TD
58><TD
59WIDTH="10%"
60ALIGN="right"
61VALIGN="bottom"
62><A
63HREF="function.die.html"
64ACCESSKEY="N"
65>Dal¹í</A
66></TD
67></TR
68></TABLE
69><HR
70ALIGN="LEFT"
71WIDTH="100%"></DIV
72><H1
73><A
74NAME="function.defined"
75></A
76>defined</H1
77><DIV
78CLASS="refnamediv"
79><A
80NAME="AEN51270"
81></A
82><P
83> (PHP 3, PHP 4 )</P
84>defined&nbsp;--&nbsp;
85 Zkontroluje, jestli existuje daná pojmenovaná konstanta
86 </DIV
87><DIV
88CLASS="refsect1"
89><A
90NAME="AEN51273"
91></A
92><H2
93>Popis</H2
94>int <B
95CLASS="methodname"
96>defined</B
97> ( string name)<BR
98></BR
99><P
100>&#13; Vrací <TT
101CLASS="constant"
102><B
103>TRUE</B
104></TT
105>, pokud byla definována pojmenovaná konstanta daná argumentem
106 <TT
107CLASS="parameter"
108><I
109>name</I
110></TT
111>, jinak <TT
112CLASS="constant"
113><B
114>FALSE</B
115></TT
116>.
117 <TABLE
118WIDTH="100%"
119BORDER="0"
120CELLPADDING="0"
121CELLSPACING="0"
122CLASS="EXAMPLE"
123><TR
124><TD
125><DIV
126CLASS="example"
127><A
128NAME="AEN51285"
129></A
130><P
131><B
132>Pøíklad 1. Kontrola konstant</B
133></P
134><TABLE
135BORDER="0"
136BGCOLOR="#E0E0E0"
137CELLPADDING="5"
138><TR
139><TD
140><PRE
141CLASS="php"
142>&#60;?php
143if (defined("CONSTANT")){ // název konstanty by mìl být v uvozovkách
144 echo CONSTANT; //
145 }
146?&#62;</PRE
147></TD
148></TR
149></TABLE
150></DIV
151></TD
152></TR
153></TABLE
154>
155 </P
156><P
157>&#13; Viz také <A
158HREF="function.define.html"
159><B
160CLASS="function"
161>define()</B
162></A
163> a sekci <A
164HREF="language.constants.html"
165>Konstanty</A
166>.
167 </P
168></DIV
169><DIV
170CLASS="NAVFOOTER"
171><HR
172ALIGN="LEFT"
173WIDTH="100%"><TABLE
174SUMMARY="Footer navigation table"
175WIDTH="100%"
176BORDER="0"
177CELLPADDING="0"
178CELLSPACING="0"
179><TR
180><TD
181WIDTH="33%"
182ALIGN="left"
183VALIGN="top"
184><A
185HREF="function.define.html"
186ACCESSKEY="P"
187>Pøedcházející</A
188></TD
189><TD
190WIDTH="34%"
191ALIGN="center"
192VALIGN="top"
193><A
194HREF="index.html"
195ACCESSKEY="H"
196>Domù</A
197></TD
198><TD
199WIDTH="33%"
200ALIGN="right"
201VALIGN="top"
202><A
203HREF="function.die.html"
204ACCESSKEY="N"
205>Dal¹í</A
206></TD
207></TR
208><TR
209><TD
210WIDTH="33%"
211ALIGN="left"
212VALIGN="top"
213>define</TD
214><TD
215WIDTH="34%"
216ALIGN="center"
217VALIGN="top"
218><A
219HREF="ref.misc.html"
220ACCESSKEY="U"
221>Nahoru</A
222></TD
223><TD
224WIDTH="33%"
225ALIGN="right"
226VALIGN="top"
227>die</TD
228></TR
229></TABLE
230></DIV
231></BODY
232></HTML
233>
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