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<title>Predefined Constants</title>
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<h1>Predefined Constants</h1>
<h2>Table of Contents</h2><ul class="chunklist chunklist_appendix"><li><a href="openssl.purpose-check.html">Purpose checking flags</a></li><li><a href="openssl.padding.html">Padding flags for asymmetric encryption</a></li><li><a href="openssl.key-types.html">Key types</a></li><li><a href="openssl.pkcs7.flags.html">PKCS7 Flags/Constants</a></li><li><a href="openssl.signature-algos.html">Signature Algorithms</a></li><li><a href="openssl.ciphers.html">Ciphers</a></li><li><a href="openssl.constversion.html">Version constants</a></li><li><a href="openssl.constsni.html">Server Name Indication constants</a></li></ul>
<p class="simpara">
The constants below are defined by this extension, and
will only be available when the extension has either
been compiled into PHP or dynamically loaded at runtime.
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