📄 function.ibase-num-fields.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 the number of fields in a result 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.ibase-name-result.html">ibase_name_result</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.ibase-num-params.html">ibase_num_params</a></div> <div class="up"><a href="ref.ibase.html">Firebird/InterBase Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.ibase-num-fields" class="refentry"> <div class="refnamediv"> <h1 class="refname">ibase_num_fields</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">ibase_num_fields</span> — <span class="dc-title">Get the number of fields in a result set</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>ibase_num_fields</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$result_id</tt></span> )</div> <p class="para rdfs-comment"> Get the number of fields in a result set. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">result_id</tt></i></span> <dd> <p class="para"> An InterBase result identifier. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the number of fields as an integer. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>ibase_num_fields()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$rs </span><span style="color: #007700">= </span><span style="color: #0000BB">ibase_query</span><span style="color: #007700">(</span><span style="color: #DD0000">"SELECT * FROM tablename"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$coln </span><span style="color: #007700">= </span><span style="color: #0000BB">ibase_num_fields</span><span style="color: #007700">(</span><span style="color: #0000BB">$rs</span><span style="color: #007700">);<br />for (</span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">0</span><span style="color: #007700">; </span><span style="color: #0000BB">$i </span><span style="color: #007700">< </span><span style="color: #0000BB">$coln</span><span style="color: #007700">; </span><span style="color: #0000BB">$i</span><span style="color: #007700">++) {<br /> </span><span style="color: #0000BB">$col_info </span><span style="color: #007700">= </span><span style="color: #0000BB">ibase_field_info</span><span style="color: #007700">(</span><span style="color: #0000BB">$rs</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">);<br /> echo </span><span style="color: #DD0000">"name: " </span><span style="color: #007700">. </span><span style="color: #0000BB">$col_info</span><span style="color: #007700">[</span><span style="color: #DD0000">'name'</span><span style="color: #007700">] . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> echo </span><span style="color: #DD0000">"alias: " </span><span style="color: #007700">. </span><span style="color: #0000BB">$col_info</span><span style="color: #007700">[</span><span style="color: #DD0000">'alias'</span><span style="color: #007700">] . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> echo </span><span style="color: #DD0000">"relation: " </span><span style="color: #007700">. </span><span style="color: #0000BB">$col_info</span><span style="color: #007700">[</span><span style="color: #DD0000">'relation'</span><span style="color: #007700">] . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> echo </span><span style="color: #DD0000">"length: " </span><span style="color: #007700">. </span><span style="color: #0000BB">$col_info</span><span style="color: #007700">[</span><span style="color: #DD0000">'length'</span><span style="color: #007700">] . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> echo </span><span style="color: #DD0000">"type: " </span><span style="color: #007700">. </span><span style="color: #0000BB">$col_info</span><span style="color: #007700">[</span><span style="color: #DD0000">'type'</span><span style="color: #007700">] . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<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.ibase-field-info.html" class="function" rel="rdfs-seeAlso">ibase_field_info()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.ibase-name-result.html">ibase_name_result</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.ibase-num-params.html">ibase_num_params</a></div> <div class="up"><a href="ref.ibase.html">Firebird/InterBase 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 + -