function.dbx-fetch-row.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>Fetches rows from a query-result that had the DBX_RESULT_UNBUFFERED flag set</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.dbx-escape-string.html">dbx_escape_string</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.dbx-query.html">dbx_query</a></div> <div class="up"><a href="ref.dbx.html">dbx Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.dbx-fetch-row" class="refentry"> <div class="refnamediv"> <h1 class="refname">dbx_fetch_row</h1> <p class="verinfo">(PHP 5 <= 5.0.5, PECL dbx:1.1.0)</p><p class="refpurpose"><span class="refname">dbx_fetch_row</span> — <span class="dc-title">Fetches rows from a query-result that had the <b><tt>DBX_RESULT_UNBUFFERED</tt></b> flag set</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <span class="methodname"><b><b>dbx_fetch_row</b></b></span> ( <span class="methodparam"><span class="type">object</span> <tt class="parameter">$result_identifier</tt></span> )</div> <p class="para rdfs-comment"> <b>dbx_fetch_row()</b> fetches rows from a result identifier that had the <b><tt>DBX_RESULT_UNBUFFERED</tt></b> flag set. </p> <p class="para"> When the <b><tt>DBX_RESULT_UNBUFFERED</tt></b> is not set in the query, <b>dbx_fetch_row()</b> will fail as all rows have already been fetched into the results <span class="property">data</span> property. </p> <p class="para"> As a side effect, the <span class="property">rows</span> property of the query-result object is incremented for each successful call to <b>dbx_fetch_row()</b>. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">result_identifier</tt></i></span> <dd> <p class="para"> A result set returned by <a href="function.dbx-query.html" class="function">dbx_query()</a>. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns an object on success that contains the same information as any row would have in the <a href="function.dbx-query.html" class="function">dbx_query()</a> result <span class="property">data</span> property, including columns accessible by index or fieldname when the flags for <a href="function.dbx-query.html" class="function">dbx_query()</a> were set that way. </p> <p class="para"> Upon failure, returns <i>0</i> (e.g. when no more rows are available). </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 How to handle the returned value</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$result </span><span style="color: #007700">= </span><span style="color: #0000BB">dbx_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">'SELECT id, parentid, description FROM table'</span><span style="color: #007700">, </span><span style="color: #0000BB">DBX_RESULT_UNBUFFERED</span><span style="color: #007700">);<br /><br />echo </span><span style="color: #DD0000">"<table>\n"</span><span style="color: #007700">;<br />while (</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">dbx_fetch_row</span><span style="color: #007700">(</span><span style="color: #0000BB">$result</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"<tr>\n"</span><span style="color: #007700">;<br /> foreach (</span><span style="color: #0000BB">$row </span><span style="color: #007700">as </span><span style="color: #0000BB">$field</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"<td>$field</td>"</span><span style="color: #007700">;<br /> }<br /> echo </span><span style="color: #DD0000">"</tr>\n"</span><span style="color: #007700">;<br />}<br />echo </span><span style="color: #DD0000">"</table>\n"</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.dbx-query.html" class="function" rel="rdfs-seeAlso">dbx_query()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.dbx-escape-string.html">dbx_escape_string</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.dbx-query.html">dbx_query</a></div> <div class="up"><a href="ref.dbx.html">dbx 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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