function.px-create-fp.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Create a new paradox database</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.px-close.html">px_close</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.px-date2string.html">px_date2string</a></div> <div class="up"><a href="ref.paradox.html">Paradox Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.px-create-fp" class="refentry"> <div class="refnamediv"> <h1 class="refname">px_create_fp</h1> <p class="verinfo">(PECL paradox:1.0-1.4.1)</p><p class="refpurpose"><span class="refname">px_create_fp</span> — <span class="dc-title">Create a new paradox database</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">bool</span> <span class="methodname"><b><b>px_create_fp</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$pxdoc</tt></span> , <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$file</tt></span> , <span class="methodparam"><span class="type">array</span> <tt class="parameter">$fielddesc</tt></span> )</div> <p class="para rdfs-comment"> Create a new paradox database file. The actual file has to be opened before with <a href="function.fopen.html" class="function">fopen()</a>. Make sure the file is writable. </p> <blockquote><p><b class="note">Note</b>: Calling this functions issues a warning about an empty tablename which can be safely ignored. Just set the tablename afterwards with <a href="function.px-set-parameter.html" class="function">px_set_parameter()</a>.<br /> </p></blockquote> <blockquote><p><b class="note">Note</b>: This function is highly experimental, due to insufficient documentation of the paradox file format. Database files created with this function can be opened by <a href="function.px-open-fp.html" class="function">px_open_fp()</a> and has been successfully opened by the Paradox software, but your milage may vary. <br /> </p></blockquote> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">pxdoc</tt></i></span> <dd> <p class="para"> Resource identifier of the paradox database as returned by <a href="function.px-new.html" class="function">px_new()</a>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">file</tt></i></span> <dd> <p class="para">File handle as returned by <a href="function.fopen.html" class="function">fopen()</a>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">fielddesc</tt></i></span> <dd> <p class="para"> <span class="option">fielddesc</span> is an array containing one element for each field specification. A field specification is an array itself with either two or three elements.The first element is always a string value used as the name of the field. It may not be larger than ten characters. The second element contains the field type which is one of the constants listed in the table <a href="paradox.constants.html#paradox.table-fieldtypes" class="link">Constants for field types</a>. In the case of a character field or bcd field, you will have to provide a third element specifying the length respectively the precesion of the field. If your field specification contains blob fields, you will have to make sure to either make the field large enough for all field values to fit or specify a blob file with <a href="function.px-set-blob-file.html" class="function">px_set_blob_file()</a> for storing the blobs. If this is not done the field data is truncated. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 Creating a Paradox database with two fields</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #007700">if(!</span><span style="color: #0000BB">$pxdoc </span><span style="color: #007700">= </span><span style="color: #0000BB">px_new</span><span style="color: #007700">()) {<br /> </span><span style="color: #FF8000">/* Error handling */<br /></span><span style="color: #007700">}<br /></span><span style="color: #0000BB">$fp </span><span style="color: #007700">= </span><span style="color: #0000BB">fopen</span><span style="color: #007700">(</span><span style="color: #DD0000">"test.db"</span><span style="color: #007700">, </span><span style="color: #DD0000">"w+"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$fields </span><span style="color: #007700">= array(array(</span><span style="color: #DD0000">"col1"</span><span style="color: #007700">, </span><span style="color: #DD0000">"S"</span><span style="color: #007700">), array(</span><span style="color: #DD0000">"col2"</span><span style="color: #007700">, </span><span style="color: #DD0000">"I"</span><span style="color: #007700">));<br />if(!</span><span style="color: #0000BB">px_create_fp</span><span style="color: #007700">(</span><span style="color: #0000BB">$pxdoc</span><span style="color: #007700">, </span><span style="color: #0000BB">$fp</span><span style="color: #007700">, </span><span style="color: #0000BB">$fields</span><span style="color: #007700">)) {<br /> </span><span style="color: #FF8000">/* Error handling */<br /></span><span style="color: #007700">}<br /></span><span style="color: #0000BB">px_set_parameter</span><span style="color: #007700">(</span><span style="color: #0000BB">$pxdoc</span><span style="color: #007700">, </span><span style="color: #DD0000">"tablename"</span><span style="color: #007700">, </span><span style="color: #DD0000">"testtable"</span><span style="color: #007700">);<br />for(</span><span style="color: #0000BB">$i</span><span style="color: #007700">=-</span><span style="color: #0000BB">50</span><span style="color: #007700">; </span><span style="color: #0000BB">$i</span><span style="color: #007700"><</span><span style="color: #0000BB">50</span><span style="color: #007700">; </span><span style="color: #0000BB">$i</span><span style="color: #007700">++) {<br /> </span><span style="color: #0000BB">$rec </span><span style="color: #007700">= array(</span><span style="color: #0000BB">$i</span><span style="color: #007700">, -</span><span style="color: #0000BB">$i</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">px_put_record</span><span style="color: #007700">(</span><span style="color: #0000BB">$pxdoc</span><span style="color: #007700">, </span><span style="color: #0000BB">$rec</span><span style="color: #007700">);<br />} <br /></span><span style="color: #0000BB">px_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$pxdoc</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">px_delete</span><span style="color: #007700">(</span><span style="color: #0000BB">$pxdoc</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">fclose</span><span style="color: #007700">(</span><span style="color: #0000BB">$fp</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.px-new.html" class="function" rel="rdfs-seeAlso">px_new()</a></li> <li class="member"><a href="function.px-put-record.html" class="function" rel="rdfs-seeAlso">px_put_record()</a></li> <li class="member"><a href="function.fopen.html" class="function" rel="rdfs-seeAlso">fopen()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.px-close.html">px_close</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.px-date2string.html">px_date2string</a></div> <div class="up"><a href="ref.paradox.html">Paradox Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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