📄 function.oci-define-by-name.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>Uses a PHP variable for the define-step during a SELECT</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.oci-connect.html">oci_connect</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.oci-error.html">oci_error</a></div> <div class="up"><a href="ref.oci8.html">OCI8 Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.oci-define-by-name" class="refentry"> <div class="refnamediv"> <h1 class="refname">oci_define_by_name</h1> <p class="verinfo">(PHP 5, PECL oci8:1.1-1.2.4)</p><p class="refpurpose"><span class="refname">oci_define_by_name</span> — <span class="dc-title">Uses a PHP variable for the define-step during a SELECT</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>oci_define_by_name</b></b></span> ( <span class="methodparam"><span class="type">resource</span> <tt class="parameter">$statement</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$column_name</tt></span> , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <tt class="parameter reference">&$variable</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$type</tt></span> ] )</div> <p class="para rdfs-comment"> Defines PHP variables for fetches of SQL-Columns. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">statement</tt></i></span> <dd> <p class="para"> A valid OCI statement identifier. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">column_name</tt></i></span> <dd> <p class="para"> The column name. Must be uppercased. </p> <p class="para"> Take into consideration that Oracle uses ALL-UPPERCASE column names, whereby in your select you can also use lowercase. If you define a variable that doesn't exists in your select statement, no error will be issued. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">variable</tt></i></span> <dd> <p class="para"> The PHP variable. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">type</tt></i></span> <dd> <p class="para"> </p> <p class="para"> If you need to define an abstract datatype (LOB/ROWID/BFILE) you must allocate it first using <a href="function.oci-new-descriptor.html" class="function">oci_new_descriptor()</a>. See also the <a href="function.oci-bind-by-name.html" class="function">oci_bind_by_name()</a> function. </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 <b>oci_define_by_name()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">/* oci_define_by_name example - thies at thieso dot net (980219) */<br /><br /></span><span style="color: #0000BB">$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"scott"</span><span style="color: #007700">, </span><span style="color: #DD0000">"tiger"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$stmt </span><span style="color: #007700">= </span><span style="color: #0000BB">oci_parse</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"SELECT empno, ename FROM emp"</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">/* the define MUST be done BEFORE oci_execute! */<br /><br /></span><span style="color: #0000BB">oci_define_by_name</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">, </span><span style="color: #DD0000">"EMPNO"</span><span style="color: #007700">, </span><span style="color: #0000BB">$empno</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_define_by_name</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">, </span><span style="color: #DD0000">"ENAME"</span><span style="color: #007700">, </span><span style="color: #0000BB">$ename</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">oci_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /><br />while (</span><span style="color: #0000BB">oci_fetch</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"empno:" </span><span style="color: #007700">. </span><span style="color: #0000BB">$empno </span><span style="color: #007700">. </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> echo </span><span style="color: #DD0000">"ename:" </span><span style="color: #007700">. </span><span style="color: #0000BB">$ename </span><span style="color: #007700">. </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #0000BB">oci_free_statement</span><span style="color: #007700">(</span><span style="color: #0000BB">$stmt</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">oci_close</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: In PHP versions before 5.0.0 you must use <a href="function.ocidefinebyname.html" class="function">ocidefinebyname()</a> instead. This name still can be used, it was left as alias of <b>oci_define_by_name()</b> for downwards compatability. This, however, is deprecated and not recommended. <br /> </p></blockquote> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.oci-connect.html">oci_connect</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.oci-error.html">oci_error</a></div> <div class="up"><a href="ref.oci8.html">OCI8 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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