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>preg_match</A
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>preg_match -- Perform a regular expression match</DIV
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><H2
>Description</H2
><DIV
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><P
></P
><CODE
CLASS="FUNCDEF"
>int preg_match</CODE
>(string pattern, string subject, array [<SPAN
CLASS="optional"
>matches</SPAN
>]);<P
></P
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><P
>&#13;     Searches <TT
CLASS="parameter"
><I
>subject</I
></TT
> for a match to the regular
     expression given in <TT
CLASS="parameter"
><I
>pattern</I
></TT
>.</P
><P
>&#13;     If <TT
CLASS="parameter"
><I
>matches</I
></TT
> is provided, then it is filled
     with the results of search.  $matches[0] will contain the text that
     match the full pattern, $matches[1] will have the text that matched
     the first captured parenthesized subpattern, and so on.</P
><P
>&#13;     Returns true if a match for <TT
CLASS="parameter"
><I
>pattern</I
></TT
> was
     found in the subject string, or false if not match was found
     or an error occurred.</P
><P
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>Example 1. Getting the page number out of a string</B
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><PRE
CLASS="programlisting"
>  1&nbsp;
  2&nbsp;if (preg_match("/page\s+#(\d+)/i", "Go to page #9.", $parts))
  3&nbsp;    print "Next page is $parts[1]";
  4&nbsp;else
  5&nbsp;    print "Page not found.";
  6&nbsp;      </PRE
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>

     See also <A
HREF="function.preg-match-all.html"
><B
CLASS="function"
>preg_match_all()</B
></A
>, 
     <A
HREF="function.preg-replace.html"
><B
CLASS="function"
>preg_replace()</B
></A
>, and
     <A
HREF="function.preg-split.html"
><B
CLASS="function"
>preg_split()</B
></A
>.</P
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