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</div><hr /><div id="migration52.global-constants" class="section">
<h2 class="title">New Global Constants</h2>
<p class="para">PHP Core:</p>
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
<strong><code>M_EULER</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>M_LNPI</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>M_SQRT3</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>M_SQRTPI</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>PATHINFO_FILENAME</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>PREG_BACKTRACK_LIMIT_ERROR</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>PREG_BAD_UTF8_ERROR</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>PREG_INTERNAL_ERROR</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>PREG_NO_ERROR</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>PREG_RECURSION_LIMIT_ERROR</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>UPLOAD_ERR_EXTENSION</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>STREAM_SHUT_RD</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>STREAM_SHUT_WR</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>STREAM_SHUT_RDWR</code></strong>
</span>
</li>
</ul>
<p class="para"><a href="ref.curl.html" class="link">curl</a>:</p>
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
<strong><code>CURLE_FILESIZE_EXCEEDED</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLE_FTP_SSL_FAILED</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLE_LDAP_INVALID_URL</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLFTPAUTH_DEFAULT</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLFTPAUTH_SSL</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLFTPAUTH_TLS</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLFTPSSL_ALL</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLFTPSSL_CONTROL</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLFTPSSL_NONE</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLFTPSSL_TRY</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLOPT_FTP_SSL</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLOPT_FTPSSLAUTH</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLOPT_TCP_NODELAY</code></strong>
</span>
<span class="simpara">
Added in PHP 5.2.1.
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLOPT_TIMEOUT_MS</code></strong>
</span>
<span class="simpara">
Added in PHP 5.2.3
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>CURLOPT_CONNECTTIMEOUT_MS</code></strong>
</span>
<span class="simpara">
Added in PHP 5.2.3
</span>
</li>
</ul>
<p class="para"><a href="ref.gmp.html" class="link">GMP</a>:</p>
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
<strong><code>GMP_VERSION</code></strong>
</span>
<span class="simpara">
Added in PHP 5.2.2.
</span>
</li>
</ul>
<p class="para"><a href="ref.ming.html" class="link">ming</a>:</p>
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
<strong><code>SWFTEXTFIELD_USEFONT</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWFTEXTFIELD_AUTOSIZE</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_NOT_COMPRESSED</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_ADPCM_COMPRESSED</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_MP3_COMPRESSED</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_NOT_COMPRESSED_LE</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_NELLY_COMPRESSED</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_5KHZ</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_11KHZ</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_22KHZ</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_44KHZ</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_8BITS</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_16BITS</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_MONO</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SWF_SOUND_STEREO</code></strong>
</span>
</li>
</ul>
<p class="para"><a href="ref.openssl.html" class="link">openssl</a>:</p>
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
<strong><code>OPENSSL_VERSION_NUMBER</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>OPENSSL_VERSION_TEXT</code></strong>
</span>
</li>
</ul>
<p class="para"><a href="ref.snmp.html" class="link">snmp</a>:</p>
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
<strong><code>SNMP_OID_OUTPUT_FULL</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>SNMP_OID_OUTPUT_NUMERIC</code></strong>
</span>
</li>
</ul>
<p class="para"><a href="ref.sem.html" class="link">Semaphore</a>:</p>
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
<strong><code>MSG_EAGAIN</code></strong>
</span>
</li>
<li class="listitem">
<span class="simpara">
<strong><code>MSG_ENOMSG</code></strong>
</span>
</li>
</ul>
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