function.xdiff-string-patch.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>Patch a string with an unified diff</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-string-patch-binary.html">xdiff_string_patch_binary</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.xdiff-string-rabdiff.html">xdiff_string_rabdiff</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-string-patch" class="refentry"> <div class="refnamediv"> <h1 class="refname">xdiff_string_patch</h1> <p class="verinfo">(PECL xdiff:0.2-1.4)</p><p class="refpurpose"><span class="refname">xdiff_string_patch</span> — <span class="dc-title">Patch a string with an unified diff</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><b><b>xdiff_string_patch</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$str</tt></span> , <span class="methodparam"><span class="type">string</span> <tt class="parameter">$patch</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$flags</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter reference">&$error</tt></span> ]] )</div> <p class="para rdfs-comment"> Patches a <i><tt class="parameter">str</tt></i> string with an unified patch in <i><tt class="parameter">patch</tt></i> parameter and returns the result. <i><tt class="parameter">patch</tt></i> has to be an unified diff created by <a href="function.xdiff-file-diff.html" class="function">xdiff_file_diff()</a>/<a href="function.xdiff-string-diff.html" class="function">xdiff_string_diff()</a> function. An optional <i><tt class="parameter">flags</tt></i> parameter specifies mode of operation. Any rejected parts of the patch will be stored inside <i><tt class="parameter">error</tt></i> variable if it is provided. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">str</tt></i></span> <dd> <p class="para"> The original string. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">patch</tt></i></span> <dd> <p class="para"> The unified patch string. It has to be created using <a href="function.xdiff-string-diff.html" class="function">xdiff_string_diff()</a>, <a href="function.xdiff-file-diff.html" class="function">xdiff_file_diff()</a> functions or compatible tools. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">flags</tt></i></span> <dd> <p class="para"> <i><tt class="parameter">flags</tt></i> can be either <b><tt>XDIFF_PATCH_NORMAL</tt></b> (default mode, normal patch) or <b><tt>XDIFF_PATCH_REVERSE</tt></b> (reversed patch). </p> <p class="para"> Starting from version 1.5.0, you can also use binary OR to enable <b><tt>XDIFF_PATCH_IGNORESPACE</tt></b> flag. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">error</tt></i></span> <dd> <p class="para"> If provided then rejected parts are stored inside this variable. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the patched string, or <b><tt>FALSE</tt></b> on error. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>xdiff_string_patch()</b> example</b></p> <div class="example-contents"><p> The following code applies changes to some article. </p></div> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$old_article </span><span style="color: #007700">= </span><span style="color: #0000BB">file_get_contents</span><span style="color: #007700">(</span><span style="color: #DD0000">'./old_article.txt'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$diff </span><span style="color: #007700">= </span><span style="color: #0000BB">$_SERVER</span><span style="color: #007700">[</span><span style="color: #DD0000">'patch'</span><span style="color: #007700">]; </span><span style="color: #FF8000">/* Let's say that someone pasted a patch to html form */<br /><br /></span><span style="color: #0000BB">$errors </span><span style="color: #007700">= </span><span style="color: #DD0000">''</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$new_article </span><span style="color: #007700">= </span><span style="color: #0000BB">xdiff_string_patch</span><span style="color: #007700">(</span><span style="color: #0000BB">$old_article</span><span style="color: #007700">, </span><span style="color: #0000BB">$diff</span><span style="color: #007700">, </span><span style="color: #0000BB">XDIFF_PATCH_NORMAL</span><span style="color: #007700">, </span><span style="color: #0000BB">$errors</span><span style="color: #007700">);<br />if (</span><span style="color: #0000BB">is_string</span><span style="color: #007700">(</span><span style="color: #0000BB">$new_article</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"New article:\n"</span><span style="color: #007700">;<br /> echo </span><span style="color: #0000BB">$new_article</span><span style="color: #007700">;<br />}<br /><br />if (</span><span style="color: #0000BB">strlen</span><span style="color: #007700">(</span><span style="color: #0000BB">$errors</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"Rejects: \n"</span><span style="color: #007700">;<br /> echo </span><span style="color: #0000BB">$errors</span><span style="color: #007700">;<br />}<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.xdiff-string-diff.html" class="function" rel="rdfs-seeAlso">xdiff_string_diff()</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-string-patch-binary.html">xdiff_string_patch_binary</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.xdiff-string-rabdiff.html">xdiff_string_rabdiff</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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