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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>Make binary diff of two files using the Rabin's polynomial fingerprinting algorithm</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.xdiff-file-patch.html">xdiff_file_patch</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.xdiff-string-bdiff-size.html">xdiff_string_bdiff_size</a></div> <div class="up"><a href="ref.xdiff.html">xdiff Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.xdiff-file-rabdiff" class="refentry"> <div class="refnamediv"> <h1 class="refname">xdiff_file_rabdiff</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">xdiff_file_rabdiff</span> — <span class="dc-title">Make binary diff of two files using the Rabin's polynomial fingerprinting algorithm</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>xdiff_file_rabdiff</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$old_file</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$new_file</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$dest</tt></span> )</div> <p class="para rdfs-comment"> Makes a binary diff of two files and stores the result in a patch file. The difference between this function and <a href="function.xdiff-file-bdiff.html" class="function">xdiff_file_bdiff()</a> is different algorithm used which should result in faster execution and smaller diff produced. This function works with both text and binary files. Resulting patch file can be later applied using <a href="function.xdiff-file-bpatch.html" class="function">xdiff_file_bpatch()</a>/<a href="function.xdiff-string-bpatch.html" class="function">xdiff_string_bpatch()</a>. </p> <p class="para"> For more details about differences between algorithm used please check <a href="http://www.xmailserver.org/xdiff-lib.html" class="link external">» libxdiff</a> website. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">old_file</tt></i></span> <dd> <p class="para"> Path to the first file. This file acts as "old" file. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">new_file</tt></i></span> <dd> <p class="para"> Path to the second file. This file acts as "new" file. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">dest</tt></i></span> <dd> <p class="para"> Path of the resulting patch file. Resulting file containts differences between "old" and "new" files. It is in binary format and is human-unreadable. </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>xdiff_file_rabdiff()</b> example</b></p> <div class="example-contents"><p> The following code makes binary diff of two archives. </p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$old_version </span><span style="color: #007700">= </span><span style="color: #DD0000">'my_script_1.0.tgz'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$new_version </span><span style="color: #007700">= </span><span style="color: #DD0000">'my_script_1.1.tgz'</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">xdiff_file_rabdiff</span><span style="color: #007700">(</span><span style="color: #0000BB">$old_version</span><span style="color: #007700">, </span><span style="color: #0000BB">$new_version</span><span style="color: #007700">, </span><span style="color: #DD0000">'my_script.bdiff'</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>: Both files will be loaded into memory so ensure that your memory_limit is set high enough. <br /> </p></blockquote> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.xdiff-file-bpatch.html" class="function" rel="rdfs-seeAlso">xdiff_file_bpatch()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.xdiff-file-patch.html">xdiff_file_patch</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.xdiff-string-bdiff-size.html">xdiff_string_bdiff_size</a></div> <div class="up"><a href="ref.xdiff.html">xdiff 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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