<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >xdiff_string_diff</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="Manual do PHP" HREF="index.html"><LINK REL="UP" TITLE="xdiff Functions" HREF="ref.xdiff.html"><LINK REL="PREVIOUS" TITLE="xdiff_string_diff_binary" HREF="function.xdiff-string-diff-binary.html"><LINK REL="NEXT" TITLE="xdiff_string_merge3" HREF="function.xdiff-string-merge3.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Manual do PHP</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.xdiff-string-diff-binary.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.xdiff-string-merge3.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.xdiff-string-diff" ></A >xdiff_string_diff</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN233457" ></A ><P > (PECL)</P >xdiff_string_diff -- Make unified diff of two strings</DIV ><DIV CLASS="refsect1" ><A NAME="AEN233460" ></A ><H2 >Descrição</H2 >string <B CLASS="methodname" >xdiff_string_diff</B > ( string str1, string str2 [, int context [, bool minimal]] )<BR ></BR ><P > Makes a unified diff of two strings. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN233478" ></A ><H2 >Parâmetros</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >str1</CODE ></DT ><DD ><P > </P ></DD ><DT ><CODE CLASS="parameter" >str2</CODE ></DT ><DD ><P > </P ></DD ><DT ><CODE CLASS="parameter" >context</CODE ></DT ><DD ><P > Indicates how many lines of context you want to include in the diff result. </P ></DD ><DT ><CODE CLASS="parameter" >minimal</CODE ></DT ><DD ><P > Set this parameter to <TT CLASS="constant" ><B >TRUE</B ></TT > if you want to minimalize the size of the diff (can take a long time). </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN233503" ></A ><H2 >Valores de retornado</H2 ><P > Returns string with result or <TT CLASS="constant" ><B >FALSE</B ></TT > if an internal error happened. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN233507" ></A ><H2 >Exemplos</H2 ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN233510" ></A ><P ><B >Exemplo 1. <B CLASS="function" >xdiff_string_diff()</B > example</B ></P ><P > The following code makes unified diff of two articles. </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$old_article </font><font color="#007700">= </font><font color="#0000BB">file_get_contents</font><font color="#007700">(</font><font color="#DD0000">'./old_article.txt'</font><font color="#007700">);<br /></font><font color="#0000BB">$new_article </font><font color="#007700">= </font><font color="#0000BB">$_REQUEST</font><font color="#007700">[</font><font color="#DD0000">'article'</font><font color="#007700">]; </font><font color="#FF8000">/* Let's say that someone pasted a new article to html form */<br /><br /></font><font color="#0000BB">$diff </font><font color="#007700">= </font><font color="#0000BB">xdiff_string_diff</font><font color="#007700">(</font><font color="#0000BB">$old_article</font><font color="#007700">, </font><font color="#0000BB">$new_article</font><font color="#007700">, </font><font color="#0000BB">1</font><font color="#007700">);<br />if (</font><font color="#0000BB">is_string</font><font color="#007700">(</font><font color="#0000BB">$diff</font><font color="#007700">)) {<br /> echo </font><font color="#DD0000">"Differences between two articles:\n"</font><font color="#007700">;<br /> echo </font><font color="#0000BB">$diff</font><font color="#007700">;<br />}<br /><br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN233515" ></A ><H2 >Notas</H2 ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >Nota: </B > This function doesn't work well with binary strings. To make diff of binary strings use <A HREF="function.xdiff-string-diff-binary.html" ><B CLASS="function" >xdiff_string_diff_binary()</B ></A >. </P ></BLOCKQUOTE ></DIV ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN233520" ></A ><H2 >Veja também</H2 ><P > <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><A HREF="function.xdiff-file-diff.html" ><B CLASS="function" >xdiff_file_diff()</B ></A ></TD ></TR ></TBODY ></TABLE ><P ></P > </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.xdiff-string-diff-binary.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Principal</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.xdiff-string-merge3.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >xdiff_string_diff_binary</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.xdiff.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >xdiff_string_merge3</TD ></TR ></TABLE ></DIV ></BODY ></HTML >