PHP: openssl_get_md_methods

<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>PHP: openssl_get_md_methods - Manual </title> <link rel="icon" type="image/svg+xml" sizes="any" href="https://www.php.net/favicon.svg?v=2"> <link rel="icon" type="image/png" sizes="196x196" href="https://www.php.net/favicon-196x196.png?v=2"> <link rel="icon" type="image/png" sizes="32x32" href="https://www.php.net/favicon-32x32.png?v=2"> <link rel="icon" type="image/png" sizes="16x16" href="https://www.php.net/favicon-16x16.png?v=2"> <link rel="shortcut icon" href="https://www.php.net/favicon.ico?v=2"> <link rel="search" type="application/opensearchdescription+xml" href="http://php.net/phpnetimprovedsearch.src" title="Add PHP.net search"> <link rel="alternate" type="application/atom+xml" href="https://www.php.net/releases/feed.php" title="PHP Release feed"> <link rel="alternate" type="application/atom+xml" href="https://www.php.net/feed.atom" title="PHP: Hypertext Preprocessor"> <link rel="canonical" href="https://www.php.net/manual/en/function.openssl-get-md-methods.php"> <link rel="shorturl" href="https://www.php.net/openssl-get-md-methods"> <link rel="alternate" href="https://www.php.net/openssl-get-md-methods" hreflang="x-default"> <link rel="contents" href="https://www.php.net/manual/en/index.php"> <link rel="index" href="https://www.php.net/manual/en/ref.openssl.php"> <link rel="prev" href="https://www.php.net/manual/en/function.openssl-get-curve-names.php"> <link rel="next" href="https://www.php.net/manual/en/function.openssl-get-privatekey.php"> <link rel="alternate" href="https://www.php.net/manual/en/function.openssl-get-md-methods.php" hreflang="en"> <link rel="alternate" href="https://www.php.net/manual/de/function.openssl-get-md-methods.php" hreflang="de"> <link rel="alternate" href="https://www.php.net/manual/es/function.openssl-get-md-methods.php" hreflang="es"> <link rel="alternate" href="https://www.php.net/manual/fr/function.openssl-get-md-methods.php" hreflang="fr"> <link rel="alternate" href="https://www.php.net/manual/it/function.openssl-get-md-methods.php" hreflang="it"> <link rel="alternate" href="https://www.php.net/manual/ja/function.openssl-get-md-methods.php" hreflang="ja"> <link rel="alternate" href="https://www.php.net/manual/pt_BR/function.openssl-get-md-methods.php" hreflang="pt_BR"> <link rel="alternate" href="https://www.php.net/manual/ru/function.openssl-get-md-methods.php" hreflang="ru"> <link rel="alternate" href="https://www.php.net/manual/tr/function.openssl-get-md-methods.php" hreflang="tr"> <link rel="alternate" href="https://www.php.net/manual/uk/function.openssl-get-md-methods.php" hreflang="uk"> <link rel="alternate" href="https://www.php.net/manual/zh/function.openssl-get-md-methods.php" hreflang="zh"> <link rel="stylesheet" type="text/css" href="/cached.php?t=1707321815&f=/fonts/Fira/fira.css" media="screen"> <link rel="stylesheet" type="text/css" href="/cached.php?t=1707321815&f=/fonts/Font-Awesome/css/fontello.css" media="screen"> <link rel="stylesheet" type="text/css" href="/cached.php?t=1732428602&f=/styles/theme-base.css" media="screen"> <link rel="stylesheet" type="text/css" href="/cached.php?t=1730558402&f=/styles/theme-medium.css" media="screen"> <base href="https://www.php.net/manual/en/function.openssl-get-md-methods.php"> <meta name="Description" content="PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world." /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:site" content="@official_php" /> <meta name="twitter:title" content="PHP: Hypertext Preprocessor" /> <meta name="twitter:description" content="PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world." /> <meta name="twitter:creator" content="@official_php" /> <meta name="twitter:image:src" content="https://www.php.net/images/meta-image.png" /> <meta itemprop="name" content="PHP: Hypertext Preprocessor" /> <meta itemprop="description" content="PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world." /> <meta itemprop="image" content="https://www.php.net/images/meta-image.png" /> <meta property="og:image" content="https://www.php.net/images/meta-image.png" /> <meta property="og:description" content="PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world." /> <link href="https://fosstodon.org/@php" rel="me" />  <script> var _paq = window._paq = window._paq || []; /* tracker methods like "setCustomDimension" should be called before "trackPageView" */ _paq.push(["setDoNotTrack", true]); _paq.push(["disableCookies"]); _paq.push(['trackPageView']); _paq.push(['enableLinkTracking']); (function() { var u="https://analytics.php.net/"; _paq.push(['setTrackerUrl', u+'matomo.php']); _paq.push(['setSiteId', '1']); var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0]; g.async=true; g.src=u+'matomo.js'; s.parentNode.insertBefore(g,s); })(); </script>  </head> <body class="docs "> <nav class="navbar navbar-fixed-top"> <div class="navbar__inner"> <a href="/" aria-label="PHP Home" class="navbar__brand"> <img src="/images/logos/php-logo-white.svg" aria-hidden="true" width="80" height="40" > </a> <div id="navbar__offcanvas" tabindex="-1" class="navbar__offcanvas" aria-label="Menu" > <button id="navbar__close-button" class="navbar__icon-item navbar_icon-item--visually-aligned navbar__close-button" > <svg xmlns="http://www.w3.org/2000/svg" width="24" viewBox="0 0 24 24" fill="currentColor"><path d="M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.41,19L12,13.41L17.59,19L19,17.59L13.41,12L19,6.41Z" /></svg> </button> <ul class="navbar__nav"> <li class="navbar__item"> <a href="/downloads.php" class="navbar__link " > Downloads </a> </li> <li class="navbar__item"> <a href="/docs.php" aria-current="page" class="navbar__link navbar__link--active " > Documentation </a> </li> <li class="navbar__item"> <a href="/get-involved.php" class="navbar__link " > Get Involved </a> </li> <li class="navbar__item"> <a href="/support.php" class="navbar__link " > Help </a> </li> <li class="navbar__item"> <a href="/releases/8.4/index.php" class="navbar__link navbar__release" > <img src="/images/php8/logo_php8_4.svg" alt="PHP 8.4"> </a> </li> </ul> </div> <div class="navbar__right">  <form action="/manual-lookup.php" class="navbar__search-form" > <label for="navbar__search-input" aria-label="Search docs"> <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" width="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" > <circle cx="11" cy="11" r="8"></circle> <line x1="21" y1="21" x2="16.65" y2="16.65"></line> </svg> </label> <input type="search" name="pattern" id="navbar__search-input" class="navbar__search-input" placeholder="Search docs" accesskey="s" > <input type="hidden" name="scope" value="quickref"> </form>  <button id="navbar__search-button" class="navbar__search-button" hidden > <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" width="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" > <circle cx="11" cy="11" r="8"></circle> <line x1="21" y1="21" x2="16.65" y2="16.65"></line> </svg> Search docs </button>  <a id="navbar__search-link" href="/lookup-form.php" aria-label="Search docs" class="navbar__icon-item navbar__search-link" > <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" width="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" > <circle cx="11" cy="11" r="8"></circle> <line x1="21" y1="21" x2="16.65" y2="16.65"></line> </svg> </a> <a id="navbar__menu-link" href="/menu.php" aria-label="Menu" class="navbar__icon-item navbar_icon-item--visually-aligned navbar_menu-link" > <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" width="24" viewBox="0 0 24 24" fill="currentColor" > <path d="M3,6H21V8H3V6M3,11H21V13H3V11M3,16H21V18H3V16Z" /> </svg> </a>  <button id="navbar__search-button-mobile" aria-label="Search docs" class="navbar__icon-item navbar__search-button-mobile" hidden > <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" width="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" > <circle cx="11" cy="11" r="8"></circle> <line x1="21" y1="21" x2="16.65" y2="16.65"></line> </svg> </button> <button id="navbar__menu-button" aria-label="Menu" class="navbar__icon-item navbar_icon-item--visually-aligned" hidden > <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" width="24" viewBox="0 0 24 24" fill="currentColor" > <path d="M3,6H21V8H3V6M3,11H21V13H3V11M3,16H21V18H3V16Z" /> </svg> </button> </div> <div id="navbar__backdrop" class="navbar__backdrop" ></div> </div> <div id="flash-message"></div> </nav> <div class="headsup"><a href='/conferences/index.php#2024-12-13-1'>International PHP Conference Berlin 2025</a></div> <nav id="trick"><div><dl> <dt><a href='/manual/en/getting-started.php'>Getting Started</a></dt> <dd><a href='/manual/en/introduction.php'>Introduction</a></dd> <dd><a href='/manual/en/tutorial.php'>A simple tutorial</a></dd> <dt><a href='/manual/en/langref.php'>Language Reference</a></dt> <dd><a href='/manual/en/language.basic-syntax.php'>Basic syntax</a></dd> <dd><a href='/manual/en/language.types.php'>Types</a></dd> <dd><a href='/manual/en/language.variables.php'>Variables</a></dd> <dd><a href='/manual/en/language.constants.php'>Constants</a></dd> <dd><a href='/manual/en/language.expressions.php'>Expressions</a></dd> <dd><a href='/manual/en/language.operators.php'>Operators</a></dd> <dd><a href='/manual/en/language.control-structures.php'>Control Structures</a></dd> <dd><a href='/manual/en/language.functions.php'>Functions</a></dd> <dd><a href='/manual/en/language.oop5.php'>Classes and Objects</a></dd> <dd><a href='/manual/en/language.namespaces.php'>Namespaces</a></dd> <dd><a href='/manual/en/language.enumerations.php'>Enumerations</a></dd> <dd><a href='/manual/en/language.errors.php'>Errors</a></dd> <dd><a href='/manual/en/language.exceptions.php'>Exceptions</a></dd> <dd><a href='/manual/en/language.fibers.php'>Fibers</a></dd> <dd><a href='/manual/en/language.generators.php'>Generators</a></dd> <dd><a href='/manual/en/language.attributes.php'>Attributes</a></dd> <dd><a href='/manual/en/language.references.php'>References Explained</a></dd> <dd><a href='/manual/en/reserved.variables.php'>Predefined Variables</a></dd> <dd><a href='/manual/en/reserved.exceptions.php'>Predefined Exceptions</a></dd> <dd><a href='/manual/en/reserved.interfaces.php'>Predefined Interfaces and Classes</a></dd> <dd><a href='/manual/en/reserved.attributes.php'>Predefined Attributes</a></dd> <dd><a href='/manual/en/context.php'>Context options and parameters</a></dd> <dd><a href='/manual/en/wrappers.php'>Supported Protocols and Wrappers</a></dd> </dl> <dl> <dt><a href='/manual/en/security.php'>Security</a></dt> <dd><a href='/manual/en/security.intro.php'>Introduction</a></dd> <dd><a href='/manual/en/security.general.php'>General considerations</a></dd> <dd><a href='/manual/en/security.cgi-bin.php'>Installed as CGI binary</a></dd> <dd><a href='/manual/en/security.apache.php'>Installed as an Apache module</a></dd> <dd><a href='/manual/en/security.sessions.php'>Session Security</a></dd> <dd><a href='/manual/en/security.filesystem.php'>Filesystem Security</a></dd> <dd><a href='/manual/en/security.database.php'>Database Security</a></dd> <dd><a href='/manual/en/security.errors.php'>Error Reporting</a></dd> <dd><a href='/manual/en/security.variables.php'>User Submitted Data</a></dd> <dd><a href='/manual/en/security.hiding.php'>Hiding PHP</a></dd> <dd><a href='/manual/en/security.current.php'>Keeping Current</a></dd> <dt><a href='/manual/en/features.php'>Features</a></dt> <dd><a href='/manual/en/features.http-auth.php'>HTTP authentication with PHP</a></dd> <dd><a href='/manual/en/features.cookies.php'>Cookies</a></dd> <dd><a href='/manual/en/features.sessions.php'>Sessions</a></dd> <dd><a href='/manual/en/features.file-upload.php'>Handling file uploads</a></dd> <dd><a href='/manual/en/features.remote-files.php'>Using remote files</a></dd> <dd><a href='/manual/en/features.connection-handling.php'>Connection handling</a></dd> <dd><a href='/manual/en/features.persistent-connections.php'>Persistent Database Connections</a></dd> <dd><a href='/manual/en/features.commandline.php'>Command line usage</a></dd> <dd><a href='/manual/en/features.gc.php'>Garbage Collection</a></dd> <dd><a href='/manual/en/features.dtrace.php'>DTrace Dynamic Tracing</a></dd> </dl> <dl> <dt><a href='/manual/en/funcref.php'>Function Reference</a></dt> <dd><a href='/manual/en/refs.basic.php.php'>Affecting PHP's Behaviour</a></dd> <dd><a href='/manual/en/refs.utilspec.audio.php'>Audio Formats Manipulation</a></dd> <dd><a href='/manual/en/refs.remote.auth.php'>Authentication Services</a></dd> <dd><a href='/manual/en/refs.utilspec.cmdline.php'>Command Line Specific Extensions</a></dd> <dd><a href='/manual/en/refs.compression.php'>Compression and Archive Extensions</a></dd> <dd><a href='/manual/en/refs.crypto.php'>Cryptography Extensions</a></dd> <dd><a href='/manual/en/refs.database.php'>Database Extensions</a></dd> <dd><a href='/manual/en/refs.calendar.php'>Date and Time Related Extensions</a></dd> <dd><a href='/manual/en/refs.fileprocess.file.php'>File System Related Extensions</a></dd> <dd><a href='/manual/en/refs.international.php'>Human Language and Character Encoding Support</a></dd> <dd><a href='/manual/en/refs.utilspec.image.php'>Image Processing and Generation</a></dd> <dd><a href='/manual/en/refs.remote.mail.php'>Mail Related Extensions</a></dd> <dd><a href='/manual/en/refs.math.php'>Mathematical Extensions</a></dd> <dd><a href='/manual/en/refs.utilspec.nontext.php'>Non-Text MIME Output</a></dd> <dd><a href='/manual/en/refs.fileprocess.process.php'>Process Control Extensions</a></dd> <dd><a href='/manual/en/refs.basic.other.php'>Other Basic Extensions</a></dd> <dd><a href='/manual/en/refs.remote.other.php'>Other Services</a></dd> <dd><a href='/manual/en/refs.search.php'>Search Engine Extensions</a></dd> <dd><a href='/manual/en/refs.utilspec.server.php'>Server Specific Extensions</a></dd> <dd><a href='/manual/en/refs.basic.session.php'>Session Extensions</a></dd> <dd><a href='/manual/en/refs.basic.text.php'>Text Processing</a></dd> <dd><a href='/manual/en/refs.basic.vartype.php'>Variable and Type Related Extensions</a></dd> <dd><a href='/manual/en/refs.webservice.php'>Web Services</a></dd> <dd><a href='/manual/en/refs.utilspec.windows.php'>Windows Only Extensions</a></dd> <dd><a href='/manual/en/refs.xml.php'>XML Manipulation</a></dd> <dd><a href='/manual/en/refs.ui.php'>GUI Extensions</a></dd> </dl> <dl> <dt>Keyboard Shortcuts</dt><dt>?</dt> <dd>This help</dd> <dt>j</dt> <dd>Next menu item</dd> <dt>k</dt> <dd>Previous menu item</dd> <dt>g p</dt> <dd>Previous man page</dd> <dt>g n</dt> <dd>Next man page</dd> <dt>G</dt> <dd>Scroll to bottom</dd> <dt>g g</dt> <dd>Scroll to top</dd> <dt>g h</dt> <dd>Goto homepage</dd> <dt>g s</dt> <dd>Goto search<br>(current page)</dd> <dt>/</dt> <dd>Focus search box</dd> </dl></div></nav> <div id="goto"> <div class="search"> <div class="text"></div> <div class="results"><ul></ul></div> </div> </div> <div id="breadcrumbs" class="clearfix"> <div id="breadcrumbs-inner"> <div class="next"> <a href="function.openssl-get-privatekey.php"> openssl_get_privatekey » </a> </div> <div class="prev"> <a href="function.openssl-get-curve-names.php"> « openssl_get_curve_names </a> </div> <ul> <li><a href='index.php'>PHP Manual</a></li> <li><a href='funcref.php'>Function Reference</a></li> <li><a href='refs.crypto.php'>Cryptography Extensions</a></li> <li><a href='book.openssl.php'>OpenSSL</a></li> <li><a href='ref.openssl.php'>OpenSSL Functions</a></li> </ul> </div> </div> <div id="layout" class="clearfix"> <section id="layout-content"> <div class="page-tools"> <div class="change-language"> <form action="/manual/change.php" method="get" id="changelang" name="changelang"> <fieldset> <label for="changelang-langs">Change language:</label> <select onchange="document.changelang.submit()" name="page" id="changelang-langs"> <option value='en/function.openssl-get-md-methods.php' selected="selected">English</option> <option value='de/function.openssl-get-md-methods.php'>German</option> <option value='es/function.openssl-get-md-methods.php'>Spanish</option> <option value='fr/function.openssl-get-md-methods.php'>French</option> <option value='it/function.openssl-get-md-methods.php'>Italian</option> <option value='ja/function.openssl-get-md-methods.php'>Japanese</option> <option value='pt_BR/function.openssl-get-md-methods.php'>Brazilian Portuguese</option> <option value='ru/function.openssl-get-md-methods.php'>Russian</option> <option value='tr/function.openssl-get-md-methods.php'>Turkish</option> <option value='uk/function.openssl-get-md-methods.php'>Ukrainian</option> <option value='zh/function.openssl-get-md-methods.php'>Chinese (Simplified)</option> <option value='help-translate.php'>Other</option> </select> </fieldset> </form> </div> </div><div id="function.openssl-get-md-methods" class="refentry"> <div class="refnamediv"> <h1 class="refname">openssl_get_md_methods</h1> <p class="verinfo">(PHP 5 >= 5.3.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">openssl_get_md_methods</span> — <span class="dc-title">Gets available digest methods</span></p> </div> <div class="refsect1 description" id="refsect1-function.openssl-get-md-methods-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="methodname"><strong>openssl_get_md_methods</strong></span>(<span class="methodparam"><span class="type"><a href="language.types.boolean.php" class="type bool">bool</a></span> <code class="parameter">$aliases</code><span class="initializer"> = <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong></span></span>): <span class="type"><a href="language.types.array.php" class="type array">array</a></span></div> <p class="para rdfs-comment"> Gets a list of available digest methods. </p> </div> <div class="refsect1 parameters" id="refsect1-function.openssl-get-md-methods-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt><code class="parameter">aliases</code></dt> <dd> <p class="para"> Set to <strong><code><a href="reserved.constants.php#constant.true">true</a></code></strong> if digest aliases should be included within the returned <span class="type"><a href="language.types.array.php" class="type array">array</a></span>. </p> </dd> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.openssl-get-md-methods-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> An <span class="type"><a href="language.types.array.php" class="type array">array</a></span> of available digest methods. </p> </div> <div class="refsect1 examples" id="refsect1-function.openssl-get-md-methods-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-973"> <p><strong>Example #1 <span class="function"><strong>openssl_get_md_methods()</strong></span> example</strong></p> <div class="example-contents"><p> Shows how the available digests might look, and also which aliases might be available. </p></div> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$digests </span><span style="color: #007700">= </span><span style="color: #0000BB">openssl_get_md_methods</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$digests_and_aliases </span><span style="color: #007700">= </span><span style="color: #0000BB">openssl_get_md_methods</span><span style="color: #007700">(</span><span style="color: #0000BB">true</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$digest_aliases </span><span style="color: #007700">= </span><span style="color: #0000BB">array_diff</span><span style="color: #007700">(</span><span style="color: #0000BB">$digests_and_aliases</span><span style="color: #007700">, </span><span style="color: #0000BB">$digests</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$digests</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$digest_aliases</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output something similar to:</p></div> <div class="example-contents screen"> <div class="examplescode"><pre class="examplescode">Array ( [0] => DSA [1] => DSA-SHA [2] => MD2 [3] => MD4 [4] => MD5 [5] => RIPEMD160 [6] => SHA [7] => SHA1 [8] => SHA224 [9] => SHA256 [10] => SHA384 [11] => SHA512 [12] => dsaEncryption [13] => dsaWithSHA [14] => ecdsa-with-SHA1 [15] => md2 [16] => md4 [17] => md5 [18] => ripemd160 [19] => sha [20] => sha1 [21] => sha224 [22] => sha256 [23] => sha384 [24] => sha512 ) Array ( [2] => DSA-SHA1 [3] => DSA-SHA1-old [4] => DSS1 [9] => RSA-MD2 [10] => RSA-MD4 [11] => RSA-MD5 [12] => RSA-RIPEMD160 [13] => RSA-SHA [14] => RSA-SHA1 [15] => RSA-SHA1-2 [16] => RSA-SHA224 [17] => RSA-SHA256 [18] => RSA-SHA384 [19] => RSA-SHA512 [28] => dsaWithSHA1 [29] => dss1 [32] => md2WithRSAEncryption [34] => md4WithRSAEncryption [36] => md5WithRSAEncryption [37] => ripemd [39] => ripemd160WithRSA [40] => rmd160 [43] => sha1WithRSAEncryption [45] => sha224WithRSAEncryption [47] => sha256WithRSAEncryption [49] => sha384WithRSAEncryption [51] => sha512WithRSAEncryption [52] => shaWithRSAEncryption [53] => ssl2-md5 [54] => ssl3-md5 [55] => ssl3-sha1 )</pre> </div> </div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-function.openssl-get-md-methods-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li><span class="function"><a href="function.openssl-digest.php" class="function" rel="rdfs-seeAlso">openssl_digest()</a> - Computes a digest</span></li> <li><span class="function"><a href="function.openssl-get-cipher-methods.php" class="function" rel="rdfs-seeAlso">openssl_get_cipher_methods()</a> - Gets available cipher methods</span></li> </ul> </p> </div> </div> <div class="contribute"> <h3 class="title">Found A Problem?</h3> <div> </div> <div class="edit-bug"> <a href="https://github.com/php/doc-base/blob/master/README.md" title="This will take you to our contribution guidelines on GitHub" target="_blank" rel="noopener noreferrer">Learn How To Improve This Page</a> • <a href="https://github.com/php/doc-en/blob/master/reference/openssl/functions/openssl-get-md-methods.xml">Submit a Pull Request</a> • <a href="https://github.com/php/doc-en/issues/new?body=From%20manual%20page:%20https:%2F%2Fphp.net%2Ffunction.openssl-get-md-methods%0A%0A---">Report a Bug</a> </div> </div><section id="usernotes"> <div class="head"> <span class="action"><a href="/manual/add-note.php?sect=function.openssl-get-md-methods&repo=en&redirect=https://www.php.net/manual/en/function.openssl-get-md-methods.php">＋<small>add a note</small></a></span> <h3 class="title">User Contributed Notes </h3> </div> <div class="note">There are no user contributed notes for this page.</div></section> </section> <aside class='layout-menu'> <ul class='parent-menu-list'> <li> <a href="ref.openssl.php">OpenSSL Functions</a> <ul class='child-menu-list'> <li class=""> <a href="function.openssl-cipher-iv-length.php" title="openssl_cipher_iv_length">openssl_cipher_iv_length</a> </li> <li class=""> <a href="function.openssl-cipher-key-length.php" title="openssl_cipher_key_length">openssl_cipher_key_length</a> </li> <li class=""> <a href="function.openssl-cms-decrypt.php" title="openssl_cms_decrypt">openssl_cms_decrypt</a> </li> <li class=""> <a href="function.openssl-cms-encrypt.php" title="openssl_cms_encrypt">openssl_cms_encrypt</a> </li> <li class=""> <a href="function.openssl-cms-read.php" title="openssl_cms_read">openssl_cms_read</a> </li> <li class=""> <a href="function.openssl-cms-sign.php" title="openssl_cms_sign">openssl_cms_sign</a> </li> <li class=""> <a href="function.openssl-cms-verify.php" title="openssl_cms_verify">openssl_cms_verify</a> </li> <li class=""> <a href="function.openssl-csr-export.php" title="openssl_csr_export">openssl_csr_export</a> </li> <li class=""> <a href="function.openssl-csr-export-to-file.php" title="openssl_csr_export_to_file">openssl_csr_export_to_file</a> </li> <li class=""> <a href="function.openssl-csr-get-public-key.php" title="openssl_csr_get_public_key">openssl_csr_get_public_key</a> </li> <li class=""> <a href="function.openssl-csr-get-subject.php" title="openssl_csr_get_subject">openssl_csr_get_subject</a> </li> <li class=""> <a href="function.openssl-csr-new.php" title="openssl_csr_new">openssl_csr_new</a> </li> <li class=""> <a href="function.openssl-csr-sign.php" title="openssl_csr_sign">openssl_csr_sign</a> </li> <li class=""> <a href="function.openssl-decrypt.php" title="openssl_decrypt">openssl_decrypt</a> </li> <li class=""> <a href="function.openssl-dh-compute-key.php" title="openssl_dh_compute_key">openssl_dh_compute_key</a> </li> <li class=""> <a href="function.openssl-digest.php" title="openssl_digest">openssl_digest</a> </li> <li class=""> <a href="function.openssl-encrypt.php" title="openssl_encrypt">openssl_encrypt</a> </li> <li class=""> <a href="function.openssl-error-string.php" title="openssl_error_string">openssl_error_string</a> </li> <li class=""> <a href="function.openssl-free-key.php" title="openssl_free_key">openssl_free_key</a> </li> <li class=""> <a href="function.openssl-get-cert-locations.php" title="openssl_get_cert_locations">openssl_get_cert_locations</a> </li> <li class=""> <a href="function.openssl-get-cipher-methods.php" title="openssl_get_cipher_methods">openssl_get_cipher_methods</a> </li> <li class=""> <a href="function.openssl-get-curve-names.php" title="openssl_get_curve_names">openssl_get_curve_names</a> </li> <li class="current"> <a href="function.openssl-get-md-methods.php" title="openssl_get_md_methods">openssl_get_md_methods</a> </li> <li class=""> <a href="function.openssl-get-privatekey.php" title="openssl_get_privatekey">openssl_get_privatekey</a> </li> <li class=""> <a href="function.openssl-get-publickey.php" title="openssl_get_publickey">openssl_get_publickey</a> </li> <li class=""> <a href="function.openssl-open.php" title="openssl_open">openssl_open</a> </li> <li class=""> <a href="function.openssl-pbkdf2.php" title="openssl_pbkdf2">openssl_pbkdf2</a> </li> <li class=""> <a href="function.openssl-pkcs12-export.php" title="openssl_pkcs12_export">openssl_pkcs12_export</a> </li> <li class=""> <a href="function.openssl-pkcs12-export-to-file.php" title="openssl_pkcs12_export_to_file">openssl_pkcs12_export_to_file</a> </li> <li class=""> <a href="function.openssl-pkcs12-read.php" title="openssl_pkcs12_read">openssl_pkcs12_read</a> </li> <li class=""> <a href="function.openssl-pkcs7-decrypt.php" title="openssl_pkcs7_decrypt">openssl_pkcs7_decrypt</a> </li> <li class=""> <a href="function.openssl-pkcs7-encrypt.php" title="openssl_pkcs7_encrypt">openssl_pkcs7_encrypt</a> </li> <li class=""> <a href="function.openssl-pkcs7-read.php" title="openssl_pkcs7_read">openssl_pkcs7_read</a> </li> <li class=""> <a href="function.openssl-pkcs7-sign.php" title="openssl_pkcs7_sign">openssl_pkcs7_sign</a> </li> <li class=""> <a href="function.openssl-pkcs7-verify.php" title="openssl_pkcs7_verify">openssl_pkcs7_verify</a> </li> <li class=""> <a href="function.openssl-pkey-derive.php" title="openssl_pkey_derive">openssl_pkey_derive</a> </li> <li class=""> <a href="function.openssl-pkey-export.php" title="openssl_pkey_export">openssl_pkey_export</a> </li> <li class=""> <a href="function.openssl-pkey-export-to-file.php" title="openssl_pkey_export_to_file">openssl_pkey_export_to_file</a> </li> <li class=""> <a href="function.openssl-pkey-free.php" title="openssl_pkey_free">openssl_pkey_free</a> </li> <li class=""> <a href="function.openssl-pkey-get-details.php" title="openssl_pkey_get_details">openssl_pkey_get_details</a> </li> <li class=""> <a href="function.openssl-pkey-get-private.php" title="openssl_pkey_get_private">openssl_pkey_get_private</a> </li> <li class=""> <a href="function.openssl-pkey-get-public.php" title="openssl_pkey_get_public">openssl_pkey_get_public</a> </li> <li class=""> <a href="function.openssl-pkey-new.php" title="openssl_pkey_new">openssl_pkey_new</a> </li> <li class=""> <a href="function.openssl-private-decrypt.php" title="openssl_private_decrypt">openssl_private_decrypt</a> </li> <li class=""> <a href="function.openssl-private-encrypt.php" title="openssl_private_encrypt">openssl_private_encrypt</a> </li> <li class=""> <a href="function.openssl-public-decrypt.php" title="openssl_public_decrypt">openssl_public_decrypt</a> </li> <li class=""> <a href="function.openssl-public-encrypt.php" title="openssl_public_encrypt">openssl_public_encrypt</a> </li> <li class=""> <a href="function.openssl-random-pseudo-bytes.php" title="openssl_random_pseudo_bytes">openssl_random_pseudo_bytes</a> </li> <li class=""> <a href="function.openssl-seal.php" title="openssl_seal">openssl_seal</a> </li> <li class=""> <a href="function.openssl-sign.php" title="openssl_sign">openssl_sign</a> </li> <li class=""> <a href="function.openssl-spki-export.php" title="openssl_spki_export">openssl_spki_export</a> </li> <li class=""> <a href="function.openssl-spki-export-challenge.php" title="openssl_spki_export_challenge">openssl_spki_export_challenge</a> </li> <li class=""> <a href="function.openssl-spki-new.php" title="openssl_spki_new">openssl_spki_new</a> </li> <li class=""> <a href="function.openssl-spki-verify.php" title="openssl_spki_verify">openssl_spki_verify</a> </li> <li class=""> <a href="function.openssl-verify.php" title="openssl_verify">openssl_verify</a> </li> <li class=""> <a href="function.openssl-x509-check-private-key.php" title="openssl_x509_check_private_key">openssl_x509_check_private_key</a> </li> <li class=""> <a href="function.openssl-x509-checkpurpose.php" title="openssl_x509_checkpurpose">openssl_x509_checkpurpose</a> </li> <li class=""> <a href="function.openssl-x509-export.php" title="openssl_x509_export">openssl_x509_export</a> </li> <li class=""> <a href="function.openssl-x509-export-to-file.php" title="openssl_x509_export_to_file">openssl_x509_export_to_file</a> </li> <li class=""> <a href="function.openssl-x509-fingerprint.php" title="openssl_x509_fingerprint">openssl_x509_fingerprint</a> </li> <li class=""> <a href="function.openssl-x509-free.php" title="openssl_x509_free">openssl_x509_free</a> </li> <li class=""> <a href="function.openssl-x509-parse.php" title="openssl_x509_parse">openssl_x509_parse</a> </li> <li class=""> <a href="function.openssl-x509-read.php" title="openssl_x509_read">openssl_x509_read</a> </li> <li class=""> <a href="function.openssl-x509-verify.php" title="openssl_x509_verify">openssl_x509_verify</a> </li> </ul> </li> </ul> </aside> </div> <footer> <div class="container footer-content"> <div class="row-fluid"> <ul class="footmenu"> <li><a href="/manual/en/copyright.php">Copyright © 2001-2024 The PHP Documentation Group</a></li> <li><a href="/my.php">My PHP.net</a></li> <li><a href="/contact.php">Contact</a></li> <li><a href="/sites.php">Other PHP.net sites</a></li> <li><a href="/privacy.php">Privacy policy</a></li> </ul> </div> </div> </footer> <script src="/cached.php?t=1731172202&f=/js/ext/jquery-3.6.0.min.js"></script> <script src="/cached.php?t=1723177202&f=/js/ext/FuzzySearch.min.js"></script> <script src="/cached.php?t=1707321815&f=/js/ext/mousetrap.min.js"></script> <script src="/cached.php?t=1707321815&f=/js/ext/jquery.scrollTo.min.js"></script> <script src="/cached.php?t=1733296801&f=/js/search.js"></script> <script src="/cached.php?t=1732876201&f=/js/common.js"></script> <script type="module" src="/cached.php?t=1733276402&f=/js/interactive-examples.js"></script> <a id="toTop" href="javascript:;"><span id="toTopHover"></span><img width="40" height="40" alt="To Top" src="/images/to-top@2x.png"></a> <div id="search-modal__backdrop" class="search-modal__backdrop"> <div role="dialog" aria-label="Search modal" id="search-modal" class="search-modal" > <div class="search-modal__header"> <div class="search-modal__form"> <div class="search-modal__input-icon">  <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" width="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" > <circle cx="11" cy="11" r="8"></circle> <line x1="21" y1="21" x2="16.65" y2="16.65"></line> </svg> </div> <input type="search" id="search-modal__input" class="search-modal__input" placeholder="Search docs" aria-label="Search docs" /> </div> <button aria-label="Close" class="search-modal__close">  <svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" width="24" viewBox="0 0 24 24" > <path d="M19,6.41L17.59,5L12,10.59L6.41,5L5,6.41L10.59,12L5,17.59L6.41,19L12,13.41L17.59,19L19,17.59L13.41,12L19,6.41Z"/> </svg> </button> </div> <div role="listbox" aria-label="Search results" id="search-modal__results" class="search-modal__results" ></div> <div class="search-modal__helper-text"> <div> <kbd>↑</kbd> and <kbd>↓</kbd> to navigate • <kbd>Enter</kbd> to select • <kbd>Esc</kbd> to close </div> <div> Press <kbd>Enter</kbd> without selection to search using Google </div> </div> </div> </div> </body> </html>

CINXE.COM

PHP: openssl_get_md_methods - Manual