PHP Manual

Documentation

Acosh

2019-08-22T18:48:46.000Z

Obsah článku

Support PHP 4> = 4.1.0, PHP 5
acosh - hyperbolic cosine

Description

float acos ( float $arg )

Vary the arcus cosine of the arg parameter in radians. acos() is the inverse of the cos() function, which means that a==cos(acos(a)) for every value in the definition domain of the acos() function.

Parameters

arg
Argument for processing

Return values

Arccos of the argument in radians.

Differences from earlier versions

5.3.0 - This feature is now available on all platforms

Jan Barášek

Jan Barášek Více o autorovi

Autor článku pracuje jako seniorní vývojář a software architekt v Praze. Navrhuje a spravuje velké webové aplikace, které znáte a používáte. Od roku 2009 nabral bohaté zkušenosti, které tímto webem předává dál.

Rád vám pomůžu:

Související články

1.

2.

PHP function fopen()

3.

4.

PHP function php_real_logo_guid()

5.

PHP function strtr()

6.

PHP function php_egg_logo_guid()

7.

PHP function money_format()

8.

PHP function filemtime()

9.

PHP function ini_get()

10.

PHP function set_magic_quotes_runtime()

11.

PHP function stream_socket_recvfrom()

12.

PHP function cli_get_process_title()

13.

PHP function fileowner()

14.

PHP function arsort()

15.

PHP function ob_end_clean()

16.

PHP function round()

17.

PHP function next()

18.

PHP function headers_list()

19.

PHP function get_html_translation_table()

20.

PHP function headers_sent()

21.

PHP function setcookie()

22.

PHP function fileperms()

23.

PHP function call_user_func()

24.

PHP function flush()

25.

PHP function fileinode()

26.

PHP function chunk_split()

27.

PHP function ob_get_length()

28.

PHP function stream_context_get_options()

29.

PHP function is_dir()

30.

PHP function unregister_tick_function()

31.

PHP function phpcredits()

32.

PHP function ob_get_clean()

33.

PHP function dir()

34.

PHP function ob_list_handlers()

35.

PHP function stream_context_get_params()

36.

PHP function natsort()

37.

PHP function iptcembed()

38.

PHP function get_current_user()

39.

PHP function pclose()

40.

PHP function getmxrr()

41.

PHP function long2ip()

42.

PHP function max()

43.

PHP function sort()

44.

PHP function fileatime()

45.

PHP function ucfirst()

46.

PHP function number_format()

47.

PHP function chgrp()

48.

PHP function debug_called_dump()

49.

PHP function ezmlm_hash()

50.

PHP function image_type_to_extension()

51.

PHP function substr_compare()

52.

PHP function serialize()

53.

PHP function stream_context_create()

54.

PHP function uksort()

55.

PHP function imagecrop()

56.

PHP function pow()

57.

PHP function lchgrp()

58.

PHP function reset()

59.

PHP function filesize()

60.

PHP function get_headers()

61.

PHP function hypot()

62.

PHP function is_uploaded_file()

63.

PHP function filetype()

64.

PHP function set_include_path()

65.

PHP function sha1()

66.

PHP function getimagesizefromstring()

67.

PHP function ob_end_flush()

68.

PHP function register_shutdown_function()

69.

PHP function pfsockopen()

70.

PHP function similar_text()

71.

PHP function ob_implicit_flush()

72.

PHP function prev()

73.

PHP function inet_ntop()

74.

PHP function gethostbynamel()

75.

PHP function stream_socket_shutdown()

76.

PHP function register_tick_function()

77.

PHP function gettimeofday()

78.

PHP function readdir()

79.

PHP function count_chars()

80.

PHP function lchown()

81.

PHP function fmod()

82.

PHP function strstr()

83.

PHP function rsort()

84.

PHP function tanh()

85.

PHP function quoted_printable_decode()

86.

PHP function rewinddir()

87.

PHP function is_link()

88.

PHP function filegroup()

89.

PHP function ignore_user_abort()

90.

PHP function range()

91.

PHP function socket_get_status()

92.

PHP function import_request_variables()

93.

PHP function crc32()

94.

PHP function stream_set_read_buffer()

95.

PHP function get_resources()

96.

PHP function sqrt()

97.

PHP function pi()

98.

PHP function strnatcasecmp()

99.

PHP function stream_get_wrappers()

100.

PHP function end()

101.

PHP function call_user_func_array()

102.

PHP function tan() - Tangent

103.

PHP function chown()

104.

PHP function htmlentities()

105.

PHP function socket_import_stream()

106.

PHP function decbin()

107.

PHP function call_user_method_array()

108.

PHP function strspn()

109.

PHP function fgets()

110.

PHP function dl()

111.

PHP function floor()

112.

PHP function strripos()

113.

PHP function mail()

114.

PHP function dns_get_mx()

115.

PHP function set_socket_blocking()

116.

PHP function pack()

117.

PHP function strpbrk()

118.

PHP function fclose()

119.

PHP function stream_socket_accept()

120.

PHP function stream_wrapper_unregister()

121.

PHP function openlog()

122.

PHP function checkdnsrr()

123.

PHP function imagecropauto()

124.

PHP function uasort()

125.

PHP function setrawcookie()

126.

PHP function lcfirst()

127.

PHP function stripslashes()

128.

PHP function base64_decode()

129.

PHP function rtrim()

130.

PHP function sys_getloadavg()

131.

PHP function extract()

132.

PHP function deg2rad()

133.

PHP function get_browser()

134.

PHP function key()

135.

PHP function image_type_to_mime_type()

136.

PHP function opendir()

137.

PHP function decoct()

138.

PHP function base64_encode()

139.

PHP function uniqid()

140.

PHP function intval()

141.

PHP function ob_get_level()

142.

PHP function is_writeable()

143.

PHP function ini_restore()

144.

PHP function stream_filter_append()

145.

PHP function gethostbyaddr()

146.

PHP function expm1()

147.

PHP function get_meta_tags()

148.

PHP function highlight_file()

149.

PHP function rad2deg()

150.

PHP function get_include_path()

151.

PHP function parse_ini_file()

152.

PHP function flock()

153.

PHP function get_magic_quotes_runtime()

154.

PHP function str_split()

155.

PHP function diskfreespace()

156.

PHP function ob_clean()

157.

PHP function stream_select()

158.

PHP function strnatcmp()

159.

PHP function closelog()

160.

PHP function ob_get_status()

161.

PHP function rewind()

162.

PHP function convert_cyr_string()

163.

PHP function stream_register_wrapper()

164.

PHP function min()

165.

PHP function get_magic_quotes_gpc()

166.

PHP function natcasesort()

167.

PHP function floatval()

168.

PHP function time_nanosleep()

169.

PHP function wordwrap()

170.

PHP function socket_set_blocking()

171.

PHP function pathinfo()

172.

PHP function touch()

173.

PHP function strcoll()

174.

PHP function hebrev()

175.

PHP function ob_get_flush()

176.

PHP function sinh()

177.

PHP function html_entity_decode()

178.

PHP function sleep()

179.

PHP function closedir()

180.

PHP function stream_socket_client()

181.

PHP function realpath()

182.

PHP function time_sleep_until()

183.

PHP function print_r()

184.

PHP function is_nan()

185.

PHP function quoted_printable_encode()

186.

PHP function strip_tags()

187.

PHP function md5()

188.

PHP function str_word_count()

189.

PHP function sin()

190.

PHP function stream_supports_lock()

191.

PHP function is_writable()

192.

PHP function umask()

193.

PHP function bin2hex()

194.

PHP function stream_get_contents()

195.

PHP function var_dump()

196.

PHP function stat()

197.

PHP function php_ini_loaded_file()

198.

PHP function krsort()

199.

PHP function stripos()

200.

PHP function header_remove()

201.

PHP function iptcparse()

202.

PHP function get_cfg_var()

203.

PHP function fnmatch()

204.

PHP function dirname()

205.

PHP function stream_socket_pair()

206.

PHP function stream_context_set_default()

207.

PHP function stream_filter_prepend()

208.

PHP function convert_uuencode()

209.

PHP function forward_static_call()

210.

PHP function stream_context_set_option()

211.

PHP function stream_is_local()

212.

PHP function ksort()

213.

PHP function error_log()

214.

PHP function inet_pton()

215.

PHP function metaphone()

216.

PHP function intdiv()

217.

PHP function error_get_last()

218.

PHP function ini_set()

219.

PHP function log1p()

220.

PHP function header_register_callback()

221.

PHP function getopt()

222.

PHP function glob()

223.

PHP function atanh()

224.

PHP function is_readable()

225.

PHP function php_strip_whitespace()

226.

PHP function zend_logo_guid()

227.

PHP function htmlspecialchars_decode()

228.

PHP function lstat()

229.

PHP function fread()

230.

PHP function stripcslashes()

231.

PHP function ob_start()

232.

PHP function quotemeta()

233.

PHP function unserialize()

234.

PHP function stream_socket_server()

235.

PHP function phpinfo()

236.

PHP function stream_socket_enable_crypto()

237.

PHP function clearstatcache()

238.

PHP function set_file_buffer()

239.

PHP function asinh()

240.

PHP function move_uploaded_file()

241.

PHP function chdir()

242.

PHP function fgetc()

243.

PHP function stream_context_set_params()

244.

PHP function php_logo_guid()

245.

PHP function compact()

246.

PHP function crypt()

247.

PHP function stristr()

248.

PHP function localeconv()

249.

PHP function ob_flush()

250.

PHP function addslashes()

251.

PHP function fgetss()

252.

PHP function show_source()

253.

PHP function strcspn()

254.

PHP function str_repeat()

255.

PHP function in_array()

256.

PHP function str_shuffle()

257.

PHP function log()

258.

PHP function restore_include_path()

259.

PHP function ucwords()

260.

PHP function forward_static_call_array()

261.

PHP function php_sapi_name()

262.

PHP function trim()

263.

PHP function connection_aborted()

264.

PHP function filectime()

265.

PHP function gethostname()

266.

PHP function ceil()

267.

PHP function addcslashes()

268.

PHP function join()

269.

PHP function call_user_method()

270.

PHP function is_executable()

271.

PHP function imageaffinematrixget()

272.

PHP function substr_count()

273.

PHP function stream_socket_get_name()

274.

PHP function stream_get_line()

275.

PHP function feof()

276.

PHP function stream_set_timeout()

277.

PHP function php_ini_scanned_files()

278.

PHP function str_replace()

279.

PHP function header()

280.

PHP function dns_check_record()

281.

PHP function is_file()

282.

PHP function basename()

283.

PHP function is_callable()

284.

PHP function microtime()

285.

PHP function imageflip()

286.

PHP function asort()

287.

PHP function stream_set_chunk_size()

288.

PHP function unpack()

289.

PHP function fgetcsv()

290.

PHP function strtok()

291.

PHP function popen()

292.

PHP function stream_filter_remove()

293.

PHP function atan2()

294.

PHP function octdec()

295.

PHP function connection_status()

296.

PHP function stream_context_get_default()

297.

PHP function lcg_value()

298.

PHP function stream_socket_sendto()

299.

PHP function fsockopen()

300.

PHP function stream_set_write_buffer()

301.

PHP function implode()

302.

PHP function stream_set_blocking()

303.

PHP function hexdec()

304.

PHP function rmdir()

305.

PHP function cos()

306.

PHP function readfile()

307.

PHP function ini_get_all()

308.

PHP function fputcsv()

309.

PHP function str_ireplace()

310.

PHP function stream_copy_to_stream()

311.

PHP function chmod()

312.

PHP function stream_get_meta_data()

313.

PHP function md5_file()

314.

PHP function is_infinite()

315.

PHP function gettype()

316.

PHP function current()

317.

PHP function constant()

318.

PHP function setlocale()

319.

PHP function strval()

320.

PHP function stream_wrapper_restore()

321.

PHP function count()

322.

PHP function ob_get_contents()

323.

PHP function parse_ini_string()

324.

PHP function shuffle()

325.

PHP function disk_free_space()

326.

PHP function usleep()

327.

PHP function strrev()

328.

PHP function convert_uudecode()

329.

PHP function cli_set_process_title()

330.

PHP function hebrevc()

331.

PHP function bindec()

332.

PHP function cosh()

333.

PHP function base_convert()

334.

PHP function dechex()

335.

PHP function magic_quotes_runtime()

336.

PHP function acosh()

337.

PHP function socket_set_timeout()

338.

PHP function getenv()

339.

PHP function file_exists()

340.

PHP function imagepalettetotruecolor()

341.

PHP function settype()

342.

PHP function scandir()

343.

PHP function is_finite()

344.

PHP function putenv()

345.

PHP function ltrim()

346.

PHP function sha1_file()

347.

PHP function php_uname()

348.

PHP function disk_total_space()

349.

PHP function strrchr()

350.

PHP function is_null()

351.

PHP function log10()

352.

PHP function ip2long()

353.

PHP function gethostbyname()

354.

PHP function getrusage()

355.

PHP function stream_wrapper_register()

356.

PHP function chroot()

357.

PHP function strtolower()

358.

PHP function set_time_limit()

359.

PHP function usort()

360.

PHP function define_syslog_variables()

361.

PHP function stream_resolve_include_path()

362.

PHP function stream_get_transports()

363.

PHP function substr_replace()

364.

PHP function strrpos()

365.

PHP function strtoupper()

366.

PHP function exp()

367.

PHP function getlastmod()

368.

PHP function strptime()

369.

PHP function getcwd()

370.

PHP function doubleval()

371.

PHP function asin()

372.

PHP function phpversion()

373.

PHP function imagesetinterpolation()

374.

PHP function substr()

375.

PHP function is_resource()

376.

PHP function atan()

377.

PHP function syslog()

378.

PHP function abs()

379.

PHP function ini_alter()

380.

PHP function mail()

381.

PHP function var_export()

382.

PHP function getimagesize - image size

383.

PHP function htmlspecialchars - escaping characters

384.

PHP function imagescale()

385.

PHP function acos()

386.

PHP function nl2br()

387.

PHP function cosh()

V jiných jazycích

1.

2.

3.

український

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

BRJ system status: All systems normal.

Status:

All systems normal.

2025