📄 function.maxdb-info.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>Retrieves information about the most recently executed query</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.maxdb-get-server-version.html">maxdb_get_server_version</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.maxdb-init.html">maxdb_init</a></div> <div class="up"><a href="ref.maxdb.html">MaxDB Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.maxdb-info" class="refentry"> <div class="refnamediv"> <h1 class="refname">maxdb_info</h1> <h1 class="refname">maxdb->info</h1> <p class="verinfo">(PECL maxdb:1.0-7.6.00.38)</p><p class="refpurpose"><span class="refname">maxdb_info</span> -- <span class="refname">maxdb->info</span> — <span class="dc-title">Retrieves information about the most recently executed query</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <p class="para">Procedural style:</p> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><b><b>maxdb_info</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$link</tt></span> )</div> <p class="para rdfs-comment">Object oriented style (property)</p> <div class="classsynopsis"> <div class="ooclass"><b class="classname">maxdb</b></div> <div class="fieldsynopsis"><span class="type">string</span> <var class="varname">$info</var>;</div> </div> <p class="para"> The <b>maxdb_info()</b> function returns a string providing information about the last query executed. The nature of this string is provided below: </p> <p class="para"> <table border="5"> <caption><b>Possible maxdb_info return values</b></caption> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Query type</th> <th colspan="1">Example result string</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">INSERT INTO...SELECT...</td> <td colspan="1" rowspan="1" align="left">Records: 100 Duplicates: 0 Warnings: 0</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">INSERT INTO...VALUES (...),(...),(...)</td> <td colspan="1" rowspan="1" align="left">Records: 3 Duplicates: 0 Warnings: 0</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">LOAD DATA INFILE ...</td> <td colspan="1" rowspan="1" align="left">Records: 1 Deleted: 0 Skipped: 0 Warnings: 0</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">ALTER TABLE ...</td> <td colspan="1" rowspan="1" align="left">Records: 3 Duplicates: 0 Warnings: 0</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">UPDATE ...</td> <td colspan="1" rowspan="1" align="left">Rows matched: 40 Changed: 40 Warnings: 0</td> </tr> </tbody> </colgroup> </table> </p> <blockquote><p><b class="note">Note</b>: Queries which do not fall into one of the above formats are not supported. In these situations, <b>maxdb_info()</b> will return an empty string. <br /> </p></blockquote> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> A character string representing additional information about the most recently executed query. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <div class="example"> <p><b>Example #1 Object oriented style</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$maxdb </span><span style="color: #007700">= new </span><span style="color: #0000BB">maxdb</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"CREATE TABLE temp.t1 LIKE hotel.city"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* INSERT INTO .. SELECT */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">query</span><span style="color: #007700">(</span><span style="color: #DD0000">"INSERT INTO temp.t1 SELECT * FROM hotel.city"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">info</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">$maxdb</span><span style="color: #007700">-></span><span style="color: #0000BB">close</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> <div class="example"> <p><b>Example #2 Procedural style</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$link </span><span style="color: #007700">= </span><span style="color: #0000BB">maxdb_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #DD0000">"MONA"</span><span style="color: #007700">, </span><span style="color: #DD0000">"RED"</span><span style="color: #007700">, </span><span style="color: #DD0000">"DEMODB"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* check connection */<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">maxdb_connect_errno</span><span style="color: #007700">()) {<br /> </span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"Connect failed: %s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_connect_error</span><span style="color: #007700">());<br /> exit();<br />}<br /><br /></span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"CREATE TABLE temp.t1 LIKE hotel.city"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* INSERT INTO .. SELECT */<br /></span><span style="color: #0000BB">maxdb_query</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">, </span><span style="color: #DD0000">"INSERT INTO temp.t1 SELECT * FROM hotel.city"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">printf</span><span style="color: #007700">(</span><span style="color: #DD0000">"%s\n"</span><span style="color: #007700">, </span><span style="color: #0000BB">maxdb_info</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">/* close connection */<br /></span><span style="color: #0000BB">maxdb_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$link</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> <p class="para">The above example will output something similar to:</p> <div class="example-contents"><pre><div class="cdata"><pre>Records: 25 Duplicates: 0 Warnings: 0</pre></div> </pre></div> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.maxdb-affected-rows.html" class="function" rel="rdfs-seeAlso">maxdb_affected_rows()</a></li> <li class="member"><a href="function.maxdb-warning-count.html" class="function" rel="rdfs-seeAlso">maxdb_warning_count()</a></li> <li class="member"><a href="function.maxdb-num-rows.html" class="function" rel="rdfs-seeAlso">maxdb_num_rows()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.maxdb-get-server-version.html">maxdb_get_server_version</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.maxdb-init.html">maxdb_init</a></div> <div class="up"><a href="ref.maxdb.html">MaxDB 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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