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4>Priorita operátorù</TITLE
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15TITLE="Logické operátory"
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37><TR
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39COLSPAN="3"
40ALIGN="center"
41>Manuál PHP</TH
42></TR
43><TR
44><TD
45WIDTH="10%"
46ALIGN="left"
47VALIGN="bottom"
48><A
49HREF="language.operators.logical.html"
50ACCESSKEY="P"
51>Pøedcházející</A
52></TD
53><TD
54WIDTH="80%"
55ALIGN="center"
56VALIGN="bottom"
57>Kapitola 11. Operátory</TD
58><TD
59WIDTH="10%"
60ALIGN="right"
61VALIGN="bottom"
62><A
63HREF="language.operators.string.html"
64ACCESSKEY="N"
65>Dal¹í</A
66></TD
67></TR
68></TABLE
69><HR
70ALIGN="LEFT"
71WIDTH="100%"></DIV
72><DIV
73CLASS="sect1"
74><H1
75CLASS="sect1"
76><A
77NAME="language.operators.precedence"
78></A
79>Priorita operátorù</H1
80><P
81>&#13; Priorita operátoru specifikuje, jak "tìsnì" vá¾e dva výrazy mezi sebou.
82 Napøíklad výraz <TT
83CLASS="literal"
84>1 + 5 * 3</TT
85>,
86 výsledkem je <TT
87CLASS="literal"
88>16</TT
89> a nikoli <TT
90CLASS="literal"
91>18</TT
92>,
93 proto¾e operátor násobení ("*") má vy¹¹í prioritu ne¾ operátor sèítání
94 ("+"). K vynucení priority mù¾eme v pøípadì potøeby pou¾ít závorky.
95 Kupø. <TT
96CLASS="literal"
97>(1 + 5) * 3</TT
98> má hodnotu <TT
99CLASS="literal"
100>18</TT
101>.
102 </P
103><P
104>&#13; Následující tabulka ukazuje pøehled operátorù vzestupnì seøazených podle
105 priority.
106 <DIV
107CLASS="table"
108><A
109NAME="AEN4942"
110></A
111><P
112><B
113>Tabulka 11-6. Priorita operátorù</B
114></P
115><TABLE
116BORDER="1"
117CLASS="CALSTABLE"
118><THEAD
119><TR
120><TH
121ALIGN="LEFT"
122VALIGN="MIDDLE"
123>Asociativita</TH
124><TH
125ALIGN="LEFT"
126VALIGN="MIDDLE"
127>Operátory</TH
128></TR
129></THEAD
130><TBODY
131><TR
132><TD
133ALIGN="LEFT"
134VALIGN="MIDDLE"
135>levá</TD
136><TD
137ALIGN="LEFT"
138VALIGN="MIDDLE"
139>,</TD
140></TR
141><TR
142><TD
143ALIGN="LEFT"
144VALIGN="MIDDLE"
145>levá</TD
146><TD
147ALIGN="LEFT"
148VALIGN="MIDDLE"
149>or</TD
150></TR
151><TR
152><TD
153ALIGN="LEFT"
154VALIGN="MIDDLE"
155>levá</TD
156><TD
157ALIGN="LEFT"
158VALIGN="MIDDLE"
159>xor</TD
160></TR
161><TR
162><TD
163ALIGN="LEFT"
164VALIGN="MIDDLE"
165>levá</TD
166><TD
167ALIGN="LEFT"
168VALIGN="MIDDLE"
169>and</TD
170></TR
171><TR
172><TD
173ALIGN="LEFT"
174VALIGN="MIDDLE"
175>pravá</TD
176><TD
177ALIGN="LEFT"
178VALIGN="MIDDLE"
179>print</TD
180></TR
181><TR
182><TD
183ALIGN="LEFT"
184VALIGN="MIDDLE"
185>levá</TD
186><TD
187ALIGN="LEFT"
188VALIGN="MIDDLE"
189>&#13; = += -= *= /= .= %= &#38;= |= ^= ~= &#60;&#60;= &#62;&#62;=
190 </TD
191></TR
192><TR
193><TD
194ALIGN="LEFT"
195VALIGN="MIDDLE"
196>levá</TD
197><TD
198ALIGN="LEFT"
199VALIGN="MIDDLE"
200>? :</TD
201></TR
202><TR
203><TD
204ALIGN="LEFT"
205VALIGN="MIDDLE"
206>levá</TD
207><TD
208ALIGN="LEFT"
209VALIGN="MIDDLE"
210>||</TD
211></TR
212><TR
213><TD
214ALIGN="LEFT"
215VALIGN="MIDDLE"
216>levá</TD
217><TD
218ALIGN="LEFT"
219VALIGN="MIDDLE"
220>&#38;&#38;</TD
221></TR
222><TR
223><TD
224ALIGN="LEFT"
225VALIGN="MIDDLE"
226>levá</TD
227><TD
228ALIGN="LEFT"
229VALIGN="MIDDLE"
230>|</TD
231></TR
232><TR
233><TD
234ALIGN="LEFT"
235VALIGN="MIDDLE"
236>levá</TD
237><TD
238ALIGN="LEFT"
239VALIGN="MIDDLE"
240>^</TD
241></TR
242><TR
243><TD
244ALIGN="LEFT"
245VALIGN="MIDDLE"
246>levá</TD
247><TD
248ALIGN="LEFT"
249VALIGN="MIDDLE"
250>&#38;</TD
251></TR
252><TR
253><TD
254ALIGN="LEFT"
255VALIGN="MIDDLE"
256>bez asociativity</TD
257><TD
258ALIGN="LEFT"
259VALIGN="MIDDLE"
260>== != === !==</TD
261></TR
262><TR
263><TD
264ALIGN="LEFT"
265VALIGN="MIDDLE"
266>bez asociativity</TD
267><TD
268ALIGN="LEFT"
269VALIGN="MIDDLE"
270>&#60; &#60;= &#62; &#62;=</TD
271></TR
272><TR
273><TD
274ALIGN="LEFT"
275VALIGN="MIDDLE"
276>levá</TD
277><TD
278ALIGN="LEFT"
279VALIGN="MIDDLE"
280>&#60;&#60; &#62;&#62;</TD
281></TR
282><TR
283><TD
284ALIGN="LEFT"
285VALIGN="MIDDLE"
286>levá</TD
287><TD
288ALIGN="LEFT"
289VALIGN="MIDDLE"
290>+ - .</TD
291></TR
292><TR
293><TD
294ALIGN="LEFT"
295VALIGN="MIDDLE"
296>levá</TD
297><TD
298ALIGN="LEFT"
299VALIGN="MIDDLE"
300>* / %</TD
301></TR
302><TR
303><TD
304ALIGN="LEFT"
305VALIGN="MIDDLE"
306>pravá</TD
307><TD
308ALIGN="LEFT"
309VALIGN="MIDDLE"
310>! ~ ++ -- (int) (double) (string) (array) (object) @</TD
311></TR
312><TR
313><TD
314ALIGN="LEFT"
315VALIGN="MIDDLE"
316>pravá</TD
317><TD
318ALIGN="LEFT"
319VALIGN="MIDDLE"
320>[</TD
321></TR
322><TR
323><TD
324ALIGN="LEFT"
325VALIGN="MIDDLE"
326>bez asociativity</TD
327><TD
328ALIGN="LEFT"
329VALIGN="MIDDLE"
330>new</TD
331></TR
332></TBODY
333></TABLE
334></DIV
335>
336 </P
337></DIV
338><DIV
339CLASS="NAVFOOTER"
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341ALIGN="LEFT"
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348><TR
349><TD
350WIDTH="33%"
351ALIGN="left"
352VALIGN="top"
353><A
354HREF="language.operators.logical.html"
355ACCESSKEY="P"
356>Pøedcházející</A
357></TD
358><TD
359WIDTH="34%"
360ALIGN="center"
361VALIGN="top"
362><A
363HREF="index.html"
364ACCESSKEY="H"
365>Domù</A
366></TD
367><TD
368WIDTH="33%"
369ALIGN="right"
370VALIGN="top"
371><A
372HREF="language.operators.string.html"
373ACCESSKEY="N"
374>Dal¹í</A
375></TD
376></TR
377><TR
378><TD
379WIDTH="33%"
380ALIGN="left"
381VALIGN="top"
382>Logické operátory</TD
383><TD
384WIDTH="34%"
385ALIGN="center"
386VALIGN="top"
387><A
388HREF="language.operators.html"
389ACCESSKEY="U"
390>Nahoru</A
391></TD
392><TD
393WIDTH="33%"
394ALIGN="right"
395VALIGN="top"
396>Øetìzcové operátory</TD
397></TR
398></TABLE
399></DIV
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401></HTML
402>
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