github.com/coreos/goproxy@v0.0.0-20190513173959-f8dc2d7ba04e/examples/goproxy-jquery-version/php_man.html (about) 1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" 2 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 3 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 4 <head profile="http://purl.org/NET/erdf/profile"> 5 <title>PHP: PHP Manual - Manual</title> 6 <style type="text/css" media="all"> 7 @import url("http://static.php.net/www.php.net/styles/site.css"); 8 @import url("http://static.php.net/www.php.net/styles/phpnet.css"); 9 10 </style> 11 <!--[if IE]><![if gte IE 6]><![endif]--> 12 <style type="text/css" media="print"> 13 @import url("http://static.php.net/www.php.net/styles/print.css"); 14 </style> 15 <!--[if IE]><![endif]><![endif]--> 16 <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> 17 <link rel="shortcut icon" href="http://static.php.net/www.php.net/favicon.ico" /> 18 <link rel="contents" href="index.php" /> 19 <link 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</div> 158 <!--/UdmComment--> 159 160 <div id="index" class="set"> 161 <h1 class="title">PHP Manual</h1> 162 163 164 165 <div class="info"> 166 <div class="authorgroup" id="authors"> 167 168 <div class="author vcard"><strong class="by">by</strong>:<br /> 169 <span class="personname fn"> 170 <span class="firstname given-name">Mehdi</span> <span class="surname family-name">Achour</span> 171 </span> 172 </div> 173 174 175 <div class="author vcard"> 176 <span class="personname fn"> 177 <span class="firstname given-name">Friedhelm</span> <span class="surname family-name">Betz</span> 178 </span> 179 </div> 180 181 182 <div class="author vcard"> 183 <span class="personname fn"> 184 <span class="firstname given-name">Antony</span> <span class="surname family-name">Dovgal</span> 185 </span> 186 </div> 187 188 189 <div class="author vcard"> 190 <span class="personname fn"> 191 <span class="firstname given-name">Nuno</span> <span class="surname family-name">Lopes</span> 192 </span> 193 </div> 194 195 196 <div class="author vcard"> 197 <span class="personname fn"> 198 <span class="firstname given-name">Hannes</span> <span class="surname family-name">Magnusson</span> 199 </span> 200 </div> 201 202 203 <div class="author vcard"> 204 <span class="personname fn"> 205 <span class="firstname given-name">Georg</span> <span class="surname family-name">Richter</span> 206 </span> 207 </div> 208 209 210 <div class="author vcard"> 211 <span class="personname fn"> 212 <span class="firstname given-name">Damien</span> <span class="surname family-name">Seguy</span> 213 </span> 214 </div> 215 216 217 <div class="author vcard"> 218 <span class="personname fn"> 219 <span class="firstname given-name">Jakub</span> <span class="surname family-name">Vrana</span> 220 </span> 221 </div> 222 223 224 225 <div class="othercredit"> 226 <span class="personname fn"> 227 <span class="othername"> 228 <a href="preface.php#contributors" class="link">And several others</a> 229 </span> 230 </span> 231 </div> 232 233 </div> 234 <div class="pubdate">2012-03-23</div> 235 236 <div class="authorgroup" id="editors"> 237 <div class="editor vcard"><strong class="editedby">Edited By</strong>: 238 <span class="personname fn"> 239 <span class="firstname given-name">Philip</span> <span class="surname family-name">Olson</span> 240 </span> 241 </div> 242 243 </div> 244 245 <div class="copyright">© 246 <span class="year">1997-2012</span> 247 <span class="holder">the PHP Documentation Group</span> 248 </div> 249 250 251 252 </div> 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 <ul class="chunklist chunklist_set"><li><a href="copyright.php">Copyright</a></li><li><a href="manual.php">PHP Manual</a><ul class="chunklist chunklist_set chunklist_children"><li><a href="preface.php">Preface</a></li></ul></li><li><a href="getting-started.php">Getting Started</a><ul class="chunklist chunklist_set chunklist_children"><li><a href="introduction.php">Introduction</a></li><li><a href="tutorial.php">A simple tutorial</a></li></ul></li><li><a href="install.php">Installation and Configuration</a><ul class="chunklist chunklist_set chunklist_children"><li><a href="install.general.php">General Installation Considerations</a></li><li><a href="install.unix.php">Installation on Unix systems</a></li><li><a href="install.macosx.php">Installation on Mac OS X</a></li><li><a href="install.windows.php">Installation on Windows systems</a></li><li><a href="install.cloud.php">Installation on Cloud Computing platforms</a></li><li><a href="install.fpm.php">FastCGI Process Manager (FPM)</a></li><li><a href="install.pecl.php">Installation of PECL extensions</a></li><li><a href="install.problems.php">Problems?</a></li><li><a href="configuration.php">Runtime Configuration</a></li></ul></li><li><a href="langref.php">Language Reference</a><ul class="chunklist chunklist_set chunklist_children"><li><a href="language.basic-syntax.php">Basic syntax</a></li><li><a href="language.types.php">Types</a></li><li><a href="language.variables.php">Variables</a></li><li><a href="language.constants.php">Constants</a></li><li><a href="language.expressions.php">Expressions</a></li><li><a href="language.operators.php">Operators</a></li><li><a href="language.control-structures.php">Control Structures</a></li><li><a href="language.functions.php">Functions</a></li><li><a href="language.oop5.php">Classes and Objects</a></li><li><a href="language.namespaces.php">Namespaces</a></li><li><a href="language.exceptions.php">Exceptions</a></li><li><a href="language.references.php">References Explained</a></li><li><a href="reserved.variables.php">Predefined Variables</a></li><li><a href="reserved.exceptions.php">Predefined Exceptions</a></li><li><a href="reserved.interfaces.php">Predefined Interfaces</a></li><li><a href="context.php">Context options and parameters</a></li><li><a href="wrappers.php">Supported Protocols and Wrappers</a></li></ul></li><li><a href="security.php">Security</a><ul class="chunklist chunklist_set chunklist_children"><li><a href="security.intro.php">Introduction</a></li><li><a href="security.general.php">General considerations</a></li><li><a href="security.cgi-bin.php">Installed as CGI binary</a></li><li><a href="security.apache.php">Installed as an Apache module</a></li><li><a href="security.filesystem.php">Filesystem Security</a></li><li><a href="security.database.php">Database Security</a></li><li><a href="security.errors.php">Error Reporting</a></li><li><a href="security.globals.php">Using Register Globals</a></li><li><a href="security.variables.php">User Submitted Data</a></li><li><a href="security.magicquotes.php">Magic Quotes</a></li><li><a href="security.hiding.php">Hiding PHP</a></li><li><a href="security.current.php">Keeping Current</a></li></ul></li><li><a href="features.php">Features</a><ul class="chunklist chunklist_set chunklist_children"><li><a href="features.http-auth.php">HTTP authentication with PHP</a></li><li><a href="features.cookies.php">Cookies</a></li><li><a href="features.sessions.php">Sessions</a></li><li><a href="features.xforms.php">Dealing with XForms</a></li><li><a href="features.file-upload.php">Handling file uploads</a></li><li><a href="features.remote-files.php">Using remote files</a></li><li><a href="features.connection-handling.php">Connection handling</a></li><li><a href="features.persistent-connections.php">Persistent Database Connections</a></li><li><a href="features.safe-mode.php">Safe Mode</a></li><li><a href="features.commandline.php">Command line usage</a> — Using PHP from the command line</li><li><a href="features.gc.php">Garbage Collection</a></li></ul></li><li><a href="funcref.php">Function Reference</a><ul class="chunklist chunklist_set chunklist_children"><li><a href="refs.basic.php.php">Affecting PHP's Behaviour</a></li><li><a href="refs.utilspec.audio.php">Audio Formats Manipulation</a></li><li><a href="refs.remote.auth.php">Authentication Services</a></li><li><a href="refs.calendar.php">Date and Time Related Extensions</a></li><li><a href="refs.utilspec.cmdline.php">Command Line Specific Extensions</a></li><li><a href="refs.compression.php">Compression and Archive Extensions</a></li><li><a href="refs.creditcard.php">Credit Card Processing</a></li><li><a href="refs.crypto.php">Cryptography Extensions</a></li><li><a href="refs.database.php">Database Extensions</a></li><li><a href="refs.fileprocess.file.php">File System Related Extensions</a></li><li><a href="refs.international.php">Human Language and Character Encoding Support</a></li><li><a href="refs.utilspec.image.php">Image Processing and Generation</a></li><li><a href="refs.remote.mail.php">Mail Related Extensions</a></li><li><a href="refs.math.php">Mathematical Extensions</a></li><li><a href="refs.utilspec.nontext.php">Non-Text MIME Output</a></li><li><a href="refs.fileprocess.process.php">Process Control Extensions</a></li><li><a href="refs.basic.other.php">Other Basic Extensions</a></li><li><a href="refs.remote.other.php">Other Services</a></li><li><a href="refs.search.php">Search Engine Extensions</a></li><li><a href="refs.utilspec.server.php">Server Specific Extensions</a></li><li><a href="refs.basic.session.php">Session Extensions</a></li><li><a href="refs.basic.text.php">Text Processing</a></li><li><a href="refs.basic.vartype.php">Variable and Type Related Extensions</a></li><li><a href="refs.webservice.php">Web Services</a></li><li><a href="refs.utilspec.windows.php">Windows Only Extensions</a></li><li><a href="refs.xml.php">XML Manipulation</a></li></ul></li><li><a href="internals2.php">PHP at the Core: A Hacker's Guide to the Zend Engine</a><ul class="chunklist chunklist_set chunklist_children"><li><a href="internals2.preface.php">Preface</a></li><li><a href="internals2.counter.php">The "counter" Extension - A Continuing Example</a></li><li><a href="internals2.buildsys.php">The PHP 5 build system</a></li><li><a href="internals2.structure.php">Extension structure</a></li><li><a href="internals2.memory.php">Memory management</a></li><li><a href="internals2.variables.php">Working with variables</a></li><li><a href="internals2.funcs.php">Writing functions</a></li><li><a href="internals2.objects.php">Working with classes and objects</a></li><li><a href="internals2.resources.php">Working with resources</a></li><li><a href="internals2.ini.php">Working with INI settings</a></li><li><a href="internals2.streams.php">Working with streams</a></li><li><a href="internals2.pdo.php">PDO Driver How-To</a></li><li><a href="internals2.faq.php">Extension FAQs</a></li><li><a href="internals2.apiref.php">Zend Engine 2 API reference</a></li><li><a href="internals2.opcodes.php">Zend Engine 2 Opcodes</a></li><li><a href="internals2.ze1.php">Zend Engine 1</a></li></ul></li><li><a href="faq.php">FAQ</a> — FAQ: Frequently Asked Questions<ul class="chunklist chunklist_set chunklist_children"><li><a href="faq.general.php">General Information</a></li><li><a href="faq.mailinglist.php">Mailing lists</a></li><li><a href="faq.obtaining.php">Obtaining PHP</a></li><li><a href="faq.databases.php">Database issues</a></li><li><a href="faq.installation.php">Installation</a></li><li><a href="faq.build.php">Build Problems</a></li><li><a href="faq.using.php">Using PHP</a></li><li><a href="faq.passwords.php">Password Hashing</a> — Safe Password Hashing</li><li><a href="faq.html.php">PHP and HTML</a></li><li><a href="faq.com.php">PHP and COM</a></li><li><a href="faq.languages.php">PHP and other languages</a></li><li><a href="faq.migration5.php">Migrating from PHP 4 to PHP 5</a></li><li><a href="faq.misc.php">Miscellaneous Questions</a></li></ul></li><li><a href="appendices.php">Appendices</a><ul class="chunklist chunklist_set chunklist_children"><li><a href="history.php">History of PHP and Related Projects</a></li><li><a href="migration54.php">Migrating from PHP 5.3.x to PHP 5.4.x</a></li><li><a href="migration53.php">Migrating from PHP 5.2.x to PHP 5.3.x</a></li><li><a href="migration52.php">Migrating from PHP 5.1.x to PHP 5.2.x</a></li><li><a href="migration51.php">Migrating from PHP 5.0.x to PHP 5.1.x</a></li><li><a href="migration5.php">Migrating from PHP 4 to PHP 5.0.x</a></li><li><a href="oop4.php">Classes and Objects (PHP 4)</a></li><li><a href="debugger.php">Debugging in PHP</a></li><li><a href="configure.php">Configure options</a></li><li><a href="ini.php">php.ini directives</a></li><li><a href="extensions.php">Extension List/Categorization</a></li><li><a href="aliases.php">List of Function Aliases</a></li><li><a href="reserved.php">List of Reserved Words</a></li><li><a href="resource.php">List of Resource Types</a></li><li><a href="filters.php">List of Available Filters</a></li><li><a href="transports.php">List of Supported Socket Transports</a></li><li><a href="types.comparisons.php">PHP type comparison tables</a></li><li><a href="tokens.php">List of Parser Tokens</a></li><li><a href="userlandnaming.php">Userland Naming Guide</a></li><li><a href="about.php">About the manual</a></li><li><a href="cc.license.php">Creative Commons Attribution 3.0</a></li><li><a href="indexes.php">Index listing</a></li></ul></li></ul></div><br /><br /> 280 <div id="usernotes"> 281 <div class="head"> 282 <span class="action"><a href="/manual/add-note.php?sect=index&redirect=http://www.php.net/manual/en/index.php"><img src="http://static.php.net/www.php.net/images/notes-add.gif" alt="add a note" width="13" height="13" class="middle" /></a> <small><a href="/manual/add-note.php?sect=index&redirect=http://www.php.net/manual/en/index.php">add a note</a></small></span> 283 <small>User Contributed Notes</small> 284 <strong>PHP Manual</strong> 285 </div> 286 <div class="note">There are no user contributed notes for this page.</div></div><br /> 287 </div> 288 <div class="cleaner"> </div> 289 </div> 290 291 <div id="footnav"> 292 <a href="/source.php?url=/manual/en/index.php">show source</a> | 293 <a href="/credits.php">credits</a> | 294 <a href="/stats/">stats</a> | 295 <a href="/sitemap.php">sitemap</a> | 296 <a href="/contact.php">contact</a> | 297 <a href="/contact.php#ads">advertising</a> | 298 <a href="/mirrors.php">mirror sites</a> 299 </div> 300 301 <div id="pagefooter"> 302 <div id="copyright"> 303 <a href="/copyright.php">Copyright © 2001-2012 The PHP Group</a><br /> 304 All rights reserved. 305 </div> 306 307 <div id="thismirror"> 308 <a href="/mirror.php">This mirror</a> generously provided by: 309 <a href="http://developer.yahoo.com/">Yahoo! 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