php-doc-en/reference/openssl/functions/openssl-error-string.xml

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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.openssl-error-string">
 <refnamediv>
  <refname>openssl_error_string</refname>
  <refpurpose>Return openSSL error message</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>string</type><methodname>openssl_error_string</methodname>
   <void/>
  </methodsynopsis>
  <para>
   <function>openssl_error_string</function> returns the last error from the
   openSSL library.  Error messages are queued, so this function should be
   called multiple times to collect all of the information. The last error will
   be the most recent one.
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns an error message string, or &false; if there are no more error
   messages to return.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>openssl_error_string</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
// lets assume you just called an openssl function that failed
while ($msg = openssl_error_string())
    echo $msg . "<br />\n";
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

</refentry>

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