📄 function.fbsql-affected-rows.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Get number of affected rows in previous FrontBase operation</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="ref.fbsql.html">FrontBase Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.fbsql-autocommit.html">fbsql_autocommit</a></div> <div class="up"><a href="ref.fbsql.html">FrontBase Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.fbsql-affected-rows" class="refentry"> <div class="refnamediv"> <h1 class="refname">fbsql_affected_rows</h1> <p class="verinfo">(PHP 4 >= 4.0.6, PHP 5)</p><p class="refpurpose"><span class="refname">fbsql_affected_rows</span> — <span class="dc-title">Get number of affected rows in previous FrontBase operation</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><b><b>fbsql_affected_rows</b></b></span> ([ <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$link_identifier</tt></span> ] )</div> <p class="para rdfs-comment"> <b>fbsql_affected_rows()</b> returns the number of rows affected by the last INSERT, UPDATE or DELETE query associated with <i><tt class="parameter">link_identifier</tt></i>. </p> <blockquote><p><b class="note">Note</b>: If you are using transactions, you need to call <b>fbsql_affected_rows()</b> after your INSERT, UPDATE, or DELETE query, not after the commit. <br /> </p></blockquote> <p class="para"> If the last query was a DELETE query with no WHERE clause, all of the records will have been deleted from the table but this function will return zero. </p> <blockquote><p><b class="note">Note</b>: When using UPDATE, FrontBase will not update columns where the new value is the same as the old value. This creates the possibility that <b>fbsql_affected_rows()</b> may not actually equal the number of rows matched, only the number of rows that were literally affected by the query. <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">link_identifier</tt></i></span><dd><p class="para">A FrontBase link identifierreturned by <a href="function.fbsql-connect.html" class="function">fbsql_connect()</a> or <a href="function.fbsql-pconnect.html" class="function">fbsql_pconnect()</a>.</p><p class="para">If optional and not specified,the function will try to find an open link to the FrontBase server and if nosuch link is found it will try to create one as if <a href="function.fbsql-connect.html" class="function">fbsql_connect()</a> was called with no arguments</p></dd></dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> If the last query failed, this function will return -1. </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.fbsql-num-rows.html" class="function" rel="rdfs-seeAlso">fbsql_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="ref.fbsql.html">FrontBase Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.fbsql-autocommit.html">fbsql_autocommit</a></div> <div class="up"><a href="ref.fbsql.html">FrontBase Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -