<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Read from BLOB/CLOB data.</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.cubrid-lob2-new.html">cubrid_lob2_new</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.cubrid-lob2-seek64.html">cubrid_lob2_seek64</a></div> <div class="up"><a href="ref.cubrid.html">CUBRID Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.cubrid-lob2-read" class="refentry"> <div class="refnamediv"> <h1 class="refname">cubrid_lob2_read</h1> <p class="verinfo">(PECL CUBRID >= 8.4.1)</p><p class="refpurpose"><span class="refname">cubrid_lob2_read</span> — <span class="dc-title">Read from BLOB/CLOB data.</span></p> </div> <div class="refsect1 description" id="refsect1-function.cubrid-lob2-read-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><strong>cubrid_lob2_read</strong></span> ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$lob_identifier</code></span> , <span class="methodparam"><span class="type">int</span> <code class="parameter">$len</code></span> )</div> <p class="para rdfs-comment"> The <span class="function"><strong>cubrid_lob2_read()</strong></span> function reads <em><code class="parameter">len</code></em> bytes from the LOB data and returns the bytes read. </p> </div> <div class="refsect1 parameters" id="refsect1-function.cubrid-lob2-read-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">lob_identifier</code></em></span> <dd> <p class="para">Lob identifier as a result of <span class="function"><a href="function.cubrid-lob2-new.html" class="function">cubrid_lob2_new()</a></span> or get from the result set.</p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">len</code></em></span> <dd> <p class="para">Length from buffer you want to read from the lob data.</p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.cubrid-lob2-read-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the contents as a string. </p> <p class="para"> <strong><code>FALSE</code></strong> when there is no more data. </p> <p class="para"> NULL on failure. </p> <p class="para"> </p> </div> <div class="refsect1 examples" id="refsect1-function.cubrid-lob2-read-examples"> <h3 class="title">Examples</h3> <div class="example" id="example-1037"> <p><strong>Example #1 <span class="function"><strong>cubrid_lob2_read()</strong></span> example 1</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// test_lob (id INT, contents CLOB)<br /><br /></span><span style="color: #0000BB">$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #0000BB">33000</span><span style="color: #007700">, </span><span style="color: #DD0000">"demodb"</span><span style="color: #007700">, </span><span style="color: #DD0000">"public"</span><span style="color: #007700">, </span><span style="color: #DD0000">""</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$req </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"select * from test_lob"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch_row</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">CUBRID_LOB</span><span style="color: #007700">);<br /><br />print </span><span style="color: #DD0000">"position now is " </span><span style="color: #007700">. </span><span style="color: #0000BB">cubrid_lob2_tell</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">cubrid_lob2_seek</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">], </span><span style="color: #0000BB">10</span><span style="color: #007700">, </span><span style="color: #0000BB">CUBRID_CURSOR_FIRST</span><span style="color: #007700">);<br /><br />print </span><span style="color: #DD0000">"\nposition after moving farword is " </span><span style="color: #007700">. </span><span style="color: #0000BB">cubrid_lob2_tell</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$data </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_lob2_read</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">], </span><span style="color: #0000BB">12</span><span style="color: #007700">);<br /><br />print </span><span style="color: #DD0000">"\nposition after reading is " </span><span style="color: #007700">. </span><span style="color: #0000BB">cubrid_lob2_tell</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br />print </span><span style="color: #0000BB">$data </span><span style="color: #007700">. </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">cubrid_lob2_seek</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">], </span><span style="color: #0000BB">5</span><span style="color: #007700">, </span><span style="color: #0000BB">CUBRID_CURSOR_CURRENT</span><span style="color: #007700">);<br /><br />print </span><span style="color: #DD0000">"\nposition after moving again is " </span><span style="color: #007700">. </span><span style="color: #0000BB">cubrid_lob2_tell</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">]) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$data </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_lob2_read</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">], </span><span style="color: #0000BB">20</span><span style="color: #007700">);<br />print </span><span style="color: #0000BB">$data </span><span style="color: #007700">. </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">cubrid_disconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> <div class="example" id="example-1038"> <p><strong>Example #2 <span class="function"><strong>cubrid_lob2_read()</strong></span> example 2</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// test_lob (id INT, contents CLOB)<br /><br /></span><span style="color: #0000BB">$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"localhost"</span><span style="color: #007700">, </span><span style="color: #0000BB">33000</span><span style="color: #007700">, </span><span style="color: #DD0000">"demodb"</span><span style="color: #007700">, </span><span style="color: #DD0000">"dba"</span><span style="color: #007700">, </span><span style="color: #DD0000">""</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$req </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_execute</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">"select * from test_lob"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_fetch_row</span><span style="color: #007700">(</span><span style="color: #0000BB">$req</span><span style="color: #007700">, </span><span style="color: #0000BB">CUBRID_LOB</span><span style="color: #007700">);<br /><br />while (</span><span style="color: #0000BB">true</span><span style="color: #007700">) {<br /> if (</span><span style="color: #0000BB">$data </span><span style="color: #007700">= </span><span style="color: #0000BB">cubrid_lob2_read</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">[</span><span style="color: #0000BB">1</span><span style="color: #007700">], </span><span style="color: #0000BB">1024</span><span style="color: #007700">)) {<br /> print </span><span style="color: #0000BB">$data </span><span style="color: #007700">. </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> }<br /> elseif (</span><span style="color: #0000BB">$data </span><span style="color: #007700">=== </span><span style="color: #0000BB">false</span><span style="color: #007700">) {<br /> print </span><span style="color: #DD0000">"There is no more data\n"</span><span style="color: #007700">;<br /> break;<br /> }<br /> else {<br /> print </span><span style="color: #DD0000">"There must some errors\n"</span><span style="color: #007700">;<br /> break;<br /> }<br />}<br /><br /></span><span style="color: #0000BB">cubrid_disconnect</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> </div> </div> <div class="refsect1 seealso" id="refsect1-function.cubrid-lob2-read-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.cubrid-lob2-write.html" class="function" rel="rdfs-seeAlso">cubrid_lob2_write()</a> - Write to a lob object.</span></li> <li class="member"> <span class="function"><a href="function.cubrid-lob2-seek.html" class="function" rel="rdfs-seeAlso">cubrid_lob2_seek()</a> - Move the cursor of a lob object.</span></li> <li class="member"> <span class="function"><a href="function.cubrid-lob2-seek64.html" class="function" rel="rdfs-seeAlso">cubrid_lob2_seek64()</a> - Move the cursor of a lob object.</span></li> <li class="member"> <span class="function"><a href="function.cubrid-lob2-tell.html" class="function" rel="rdfs-seeAlso">cubrid_lob2_tell()</a> - Tell the cursor position of the LOB object.</span></li> <li class="member"> <span class="function"><a href="function.cubrid-lob2-tell64.html" class="function" rel="rdfs-seeAlso">cubrid_lob2_tell64()</a> - Tell the cursor position of the LOB object.</span></li> <li class="member"> <span class="function"><a href="function.cubrid-lob2-size.html" class="function" rel="rdfs-seeAlso">cubrid_lob2_size()</a> - Get a lob object's size.</span></li> <li class="member"> <span class="function"><a href="function.cubrid-lob2-size64.html" class="function" rel="rdfs-seeAlso">cubrid_lob2_size64()</a> - Get a lob object's size.</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.cubrid-lob2-new.html">cubrid_lob2_new</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.cubrid-lob2-seek64.html">cubrid_lob2_seek64</a></div> <div class="up"><a href="ref.cubrid.html">CUBRID Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>