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53 lines
2.7 KiB
HTML
53 lines
2.7 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>返回 openSSL 错误消息</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.openssl-error-string" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">openssl_error_string</h1>
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<p class="verinfo">(PHP 4 >= 4.0.6, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">openssl_error_string</span> — <span class="dc-title">返回 openSSL 错误消息</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.openssl-error-string-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>openssl_error_string</strong></span>
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( <span class="methodparam">void</span>
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) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>openssl_error_string()</strong></span> 从openSSL库返回最后一个错误。错误消息已被队列化，因此这个函数可以多次调用用来收集所有的信息。最后一个错误将是最近的一个。
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.openssl-error-string-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功，返回错误信息字符串，如果没有任何错误信息则返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.openssl-error-string-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-932">
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<p><strong>Example #1 <span class="function"><strong>openssl_error_string()</strong></span> example</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// lets assume you just called an openssl function that failed<br /></span><span style="color: #007700">while (</span><span style="color: #0000BB">$msg </span><span style="color: #007700">= </span><span style="color: #0000BB">openssl_error_string</span><span style="color: #007700">())<br /> echo </span><span style="color: #0000BB">$msg </span><span style="color: #007700">. </span><span style="color: #DD0000">"<br />\n"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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</div></div></div></body></html> |