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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Sign an S/MIME message</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.openssl-pkcs7-encrypt.html">openssl_pkcs7_encrypt</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.openssl-pkcs7-verify.html">openssl_pkcs7_verify</a></div> <div class="up"><a href="ref.openssl.html">OpenSSL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.openssl-pkcs7-sign" class="refentry"> <div class="refnamediv"> <h1 class="refname">openssl_pkcs7_sign</h1> <p class="verinfo">(PHP 4 >= 4.0.6, PHP 5)</p><p class="refpurpose"><span class="refname">openssl_pkcs7_sign</span> — <span class="dc-title">Sign an S/MIME message</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>openssl_pkcs7_sign</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$infilename</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$outfilename</tt></span> , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <tt class="parameter">$signcert</tt></span> , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <tt class="parameter">$privkey</tt></span> , <span class="methodparam"><span class="type">array</span> <tt class="parameter">$headers</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$flags</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$extracerts</tt></span> ]] )</div> <p class="para rdfs-comment"> <b>openssl_pkcs7_sign()</b> takes the contents of the file named <i><tt class="parameter">infilename</tt></i> and signs them using the certificate and its matching private key specified by <i><tt class="parameter">signcert</tt></i> and <i><tt class="parameter">privkey</tt></i> parameters. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">infilename</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">outfilename</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">signcert</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">privkey</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">headers</tt></i></span> <dd> <p class="para"> <i><tt class="parameter">headers</tt></i> is an array of headers that will be prepended to the data after it has been signed (see <a href="function.openssl-pkcs7-encrypt.html" class="function">openssl_pkcs7_encrypt()</a> for more information about the format of this parameter. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">flags</tt></i></span> <dd> <p class="para"> <i><tt class="parameter">flags</tt></i> can be used to alter the output - see <a href="openssl.pkcs7.flags.html" class="link">PKCS7 constants</a> - if not specified, it defaults to PKCS7_DETACHED. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">extracerts</tt></i></span> <dd> <p class="para"> <i><tt class="parameter">extracerts</tt></i> specifies the name of a file containing a bunch of extra certificates to include in the signature which can for example be used to help the recipient to verify the certificate that you used. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>openssl_pkcs7_sign()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// the message you want to sign so that recipient can be sure it was you that<br />// sent it<br /></span><span style="color: #0000BB">$data </span><span style="color: #007700">= <<<EOD<br /></span><span style="color: #0000BB"><br />You have my authorization to spend $10,000 on dinner expenses.<br /><br />The CEO<br /></span><span style="color: #007700">EOD;<br /></span><span style="color: #FF8000">// save message to file<br /></span><span style="color: #0000BB">$fp </span><span style="color: #007700">= </span><span style="color: #0000BB">fopen</span><span style="color: #007700">(</span><span style="color: #DD0000">"msg.txt"</span><span style="color: #007700">, </span><span style="color: #DD0000">"w"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fwrite</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #0000BB">$data</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">);<br /></span><span style="color: #FF8000">// encrypt it<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">openssl_pkcs7_sign</span><span style="color: #007700">(</span><span style="color: #DD0000">"msg.txt"</span><span style="color: #007700">, </span><span style="color: #DD0000">"signed.txt"</span><span style="color: #007700">, </span><span style="color: #DD0000">"mycert.pem"</span><span style="color: #007700">,<br /> array(</span><span style="color: #DD0000">"file://mycert.pem"</span><span style="color: #007700">, </span><span style="color: #DD0000">"mypassphrase"</span><span style="color: #007700">),<br /> array(</span><span style="color: #DD0000">"To" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"joes@example.com"</span><span style="color: #007700">, </span><span style="color: #FF8000">// keyed syntax<br /> </span><span style="color: #DD0000">"From: HQ <ceo@example.com>"</span><span style="color: #007700">, </span><span style="color: #FF8000">// indexed syntax<br /> </span><span style="color: #DD0000">"Subject" </span><span style="color: #007700">=> </span><span style="color: #DD0000">"Eyes only"</span><span style="color: #007700">)<br /> )) {<br /> </span><span style="color: #FF8000">// message signed - send it!<br /> </span><span style="color: #0000BB">exec</span><span style="color: #007700">(</span><span style="color: #0000BB">ini_get</span><span style="color: #007700">(</span><span style="color: #DD0000">"sendmail_path"</span><span style="color: #007700">) . </span><span style="color: #DD0000">" < signed.txt"</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.openssl-pkcs7-encrypt.html">openssl_pkcs7_encrypt</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.openssl-pkcs7-verify.html">openssl_pkcs7_verify</a></div> <div class="up"><a href="ref.openssl.html">OpenSSL Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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