<!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>Erases a specified portion of the internal LOB data</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="oci-lob.eof.html">OCI-Lob::eof</a></div> <div class="next" style="text-align: right; float: right;"><a href="oci-lob.export.html">OCI-Lob::export</a></div> <div class="up"><a href="class.OCI-Lob.html">OCI-Lob</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="oci-lob.erase" class="refentry"> <div class="refnamediv"> <h1 class="refname">OCI-Lob::erase</h1> <p class="verinfo">(PHP 5, PECL OCI8 >= 1.1.0)</p><p class="refpurpose"><span class="refname">OCI-Lob::erase</span> — <span class="dc-title">Erases a specified portion of the internal LOB data</span></p> </div> <div class="refsect1 description" id="refsect1-oci-lob.erase-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><strong>OCI-Lob::erase</strong></span> ([ <span class="methodparam"><span class="type">int</span> <code class="parameter">$offset</code></span> [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$length</code></span> ]] )</div> <p class="para rdfs-comment"> Erases a specified portion of the internal LOB data starting at a specified <em><code class="parameter">offset</code></em>. If called without parameters, it erases all LOB data. </p> <p class="para"> For BLOBs, erasing means that the existing LOB value is overwritten with zero-bytes. For CLOBs, the existing LOB value is overwritten with spaces. </p> </div> <div class="refsect1 parameters" id="refsect1-oci-lob.erase-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">offset</code></em></span> <dd> <p class="para"> </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">length</code></em></span> <dd> <p class="para"> </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-oci-lob.erase-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the actual number of characters/bytes erased or <strong><code>FALSE</code></strong> on failure. </p> </div> <div class="refsect1 seealso" id="refsect1-oci-lob.erase-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="oci-lob.truncate.html" class="xref">OCI-Lob::truncate</a></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="oci-lob.eof.html">OCI-Lob::eof</a></div> <div class="next" style="text-align: right; float: right;"><a href="oci-lob.export.html">OCI-Lob::export</a></div> <div class="up"><a href="class.OCI-Lob.html">OCI-Lob</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>