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194 lines
4.6 KiB
HTML
194 lines
4.6 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>Return lots of information about a paradox file</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.px-get-info" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">px_get_info</h1>
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<p class="verinfo">(PECL paradox >= 1.0.0)</p><p class="refpurpose"><span class="refname">px_get_info</span> — <span class="dc-title">Return lots of information about a paradox file</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.px-get-info-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>px_get_info</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$pxdoc</code></span>
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) : <span class="type">array</span></div>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.px-get-info-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">pxdoc</code></dt>
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<dd>
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<p class="para">
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Resource identifier of the paradox database
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as returned by <span class="function"><a href="px_new.html" class="function">px_new()</a></span>.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.px-get-info-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns an associated array with lots of information about a paradox
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file. This array is likely to be extended in the future.
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</p>
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<dl>
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<dt>
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fileversion</dt>
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<dd>
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<p class="para">Version of file multiplied by 10, e.g. 70.</p>
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</dd>
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<dt>
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tablename</dt>
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<dd>
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<p class="para">Name of table as stored in the file. If the database was created
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by pxlib, then this will be the name of the file without the
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extension.</p>
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</dd>
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<dt>
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numrecords</dt>
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<dd>
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<p class="para">Number of records in this table.</p>
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</dd>
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<dt>
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numfields</dt>
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<dd>
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<p class="para">Number of fields in this table.</p>
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</dd>
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<dt>
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headersize</dt>
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<dd>
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<p class="para">Number of bytes used for the header. This is usually 0x800.</p>
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</dd>
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<dt>
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recordsize</dt>
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<dd>
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<p class="para">Number of bytes used for each record. This is the sum of all
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field sizes (available since version 1.4.2).</p>
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</dd>
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<dt>
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maxtablesize</dt>
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<dd>
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<p class="para">
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This value multiplied by 0x400 is the size of a data block in bytes.
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The maximum number of records in a datablock is the integer part of
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(maxtablesize * 0x400 - 8) / recordsize.
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</p>
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</dd>
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<dt>
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numdatablocks</dt>
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<dd>
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<p class="para">
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The number of data blocks in the file. Each data block contains a
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certain number of records which depends on the record size and the data
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block size (maxtablesize). Data blocks may not necessarily be
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completely filled.
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</p>
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</dd>
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<dt>
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numindexfields</dt>
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<dd>
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<p class="para">
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Number of fields used for the primary index. The fields do always start
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with field number 1.
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</p>
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</dd>
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<dt>
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codepage</dt>
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<dd>
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<p class="para">
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The DOS codepage which was used for encoding fields with character data.
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If the target encoding is not set with
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<span class="function"><a href="px_set_targetencoding.html" class="function">px_set_targetencoding()</a></span> this will be the encoding for
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character fields when records are being accessed with
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<span class="function"><a href="px_get_record.html" class="function">px_get_record()</a></span> or
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<span class="function"><a href="px_retrieve_record.html" class="function">px_retrieve_record()</a></span>.
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</p>
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</dd>
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</dl>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.px-get-info-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="px_numfields.html" class="function" rel="rdfs-seeAlso">px_numfields()</a> - Returns number of fields in a database</span></li>
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<li class="member"><span class="function"><a href="px_numrecords.html" class="function" rel="rdfs-seeAlso">px_numrecords()</a> - Returns number of records in a database</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |