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1<HTML
2><HEAD
3><TITLE
4>session_start</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="Session handling functions"
13HREF="ref.session.html"><LINK
14REL="PREVIOUS"
15TITLE="session_set_save_handler"
16HREF="function.session-set-save-handler.html"><LINK
17REL="NEXT"
18TITLE="session_unregister"
19HREF="function.session-unregister.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.session-set-save-handler.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.session-unregister.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.session-start"
75></A
76>session_start</H1
77><DIV
78CLASS="refnamediv"
79><A
80NAME="AEN78094"
81></A
82><P
83> (PHP 4 )</P
84>session_start&nbsp;--&nbsp;Initialize session data</DIV
85><DIV
86CLASS="refsect1"
87><A
88NAME="AEN78097"
89></A
90><H2
91>Description</H2
92>bool <B
93CLASS="methodname"
94>session_start</B
95> ( void)<BR
96></BR
97><P
98>&#13; <B
99CLASS="function"
100>session_start()</B
101> creates a session (or resumes
102 the current one based on the session id being passed via a GET
103 variable or a cookie).
104 </P
105><P
106>&#13; If you want to use a named session, you must call
107 <A
108HREF="function.session-name.html"
109><B
110CLASS="function"
111>session_name()</B
112></A
113> before calling
114 <B
115CLASS="function"
116>session_start()</B
117>.
118 </P
119><P
120>&#13; This function always returns <TT
121CLASS="constant"
122><B
123>TRUE</B
124></TT
125>.
126 </P
127><DIV
128CLASS="note"
129><BLOCKQUOTE
130CLASS="note"
131><P
132><B
133>Poznámka: </B
134>
135 If you are using cookie-based sessions, you must call
136 <B
137CLASS="function"
138>session_start()</B
139> before anything is output to the
140 browser.
141 </P
142></BLOCKQUOTE
143></DIV
144><P
145>&#13; <B
146CLASS="function"
147>session_start()</B
148> will register internal output
149 handler for URL rewriting when <TT
150CLASS="literal"
151>trans-sid</TT
152> is
153 enabled. If a user uses <TT
154CLASS="literal"
155>ob_gzhandler</TT
156> or like
157 with <A
158HREF="function.ob-start.html"
159><B
160CLASS="function"
161>ob_start()</B
162></A
163>, the order of output handler
164 is important for proper output. For example, user must register
165 <TT
166CLASS="literal"
167>ob_gzhandler</TT
168> before session start.
169 </P
170><DIV
171CLASS="note"
172><BLOCKQUOTE
173CLASS="note"
174><P
175><B
176>Poznámka: </B
177>
178 Use of <A
179HREF="ref.zlib.html#ini.zlib.output-compression"
180>zlib.output_compression</A
181>
182 is recommended rather than <A
183HREF="function.ob-gzhandler.html"
184><B
185CLASS="function"
186>ob_gzhandler()</B
187></A
188>
189 </P
190></BLOCKQUOTE
191></DIV
192></DIV
193><DIV
194CLASS="NAVFOOTER"
195><HR
196ALIGN="LEFT"
197WIDTH="100%"><TABLE
198SUMMARY="Footer navigation table"
199WIDTH="100%"
200BORDER="0"
201CELLPADDING="0"
202CELLSPACING="0"
203><TR
204><TD
205WIDTH="33%"
206ALIGN="left"
207VALIGN="top"
208><A
209HREF="function.session-set-save-handler.html"
210ACCESSKEY="P"
211>Pøedcházející</A
212></TD
213><TD
214WIDTH="34%"
215ALIGN="center"
216VALIGN="top"
217><A
218HREF="index.html"
219ACCESSKEY="H"
220>Domù</A
221></TD
222><TD
223WIDTH="33%"
224ALIGN="right"
225VALIGN="top"
226><A
227HREF="function.session-unregister.html"
228ACCESSKEY="N"
229>Dal¹í</A
230></TD
231></TR
232><TR
233><TD
234WIDTH="33%"
235ALIGN="left"
236VALIGN="top"
237>session_set_save_handler</TD
238><TD
239WIDTH="34%"
240ALIGN="center"
241VALIGN="top"
242><A
243HREF="ref.session.html"
244ACCESSKEY="U"
245>Nahoru</A
246></TD
247><TD
248WIDTH="33%"
249ALIGN="right"
250VALIGN="top"
251>session_unregister</TD
252></TR
253></TABLE
254></DIV
255></BODY
256></HTML
257>
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