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php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>sscanf</H1
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><P
>    (PHP 4 &#62;= 4.0.1, PHP 5)</P
>sscanf&nbsp;--&nbsp;
     Parses input from a string according to a format
    </DIV
><DIV
CLASS="refsect1"
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><H2
>Description</H2
>mixed <B
CLASS="methodname"
>sscanf</B
> ( string str, string format [, mixed &#38;...] )<BR
></BR
><P
>&#13;     The function <B
CLASS="function"
>sscanf()</B
> is the input analog of
     <A
HREF="function.printf.html"
><B
CLASS="function"
>printf()</B
></A
>. <B
CLASS="function"
>sscanf()</B
> reads
     from the string <CODE
CLASS="parameter"
>str</CODE
> and interprets it
     according to the specified <CODE
CLASS="parameter"
>format</CODE
>, which is
     described in the documentation for <A
HREF="function.sprintf.html"
><B
CLASS="function"
>sprintf()</B
></A
>. If only
     two parameters were passed to this function, the values parsed
     will be returned as an array. Otherwise, if optional parameters are passed,
     the function will return the number of assigned values. The optional
     parameters must be passed by reference.
    </P
><P
>&#13;     Any whitespace in the format string matches any whitespace in the input
     string. This means that even a tab \t in the format string can match a
     single space character in the input string.
    </P
><P
>&#13;     <TABLE
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><B
>例 1. <B
CLASS="function"
>sscanf()</B
> Example</B
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /></font><font color="#FF8000">// getting the serial number<br /></font><font color="#007700">list(</font><font color="#0000BB">$serial</font><font color="#007700">) = </font><font color="#0000BB">sscanf</font><font color="#007700">(</font><font color="#DD0000">"SN/2350001"</font><font color="#007700">, </font><font color="#DD0000">"SN/%d"</font><font color="#007700">);<br /></font><font color="#FF8000">// and the date of manufacturing<br /></font><font color="#0000BB">$mandate </font><font color="#007700">= </font><font color="#DD0000">"January 01 2000"</font><font color="#007700">;<br />list(</font><font color="#0000BB">$month</font><font color="#007700">, </font><font color="#0000BB">$day</font><font color="#007700">, </font><font color="#0000BB">$year</font><font color="#007700">) = </font><font color="#0000BB">sscanf</font><font color="#007700">(</font><font color="#0000BB">$mandate</font><font color="#007700">, </font><font color="#DD0000">"%s %d %d"</font><font color="#007700">);<br />echo </font><font color="#DD0000">"Item $serial was manufactured on: $year-" </font><font color="#007700">. </font><font color="#0000BB">substr</font><font color="#007700">(</font><font color="#0000BB">$month</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">3</font><font color="#007700">) . </font><font color="#DD0000">"-$day</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
     If optional parameters are passed, the function will return the
     number of assigned values.
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CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
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></A
><P
><B
>例 2. <B
CLASS="function"
>sscanf()</B
> - using optional parameters</B
></P
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /></font><font color="#FF8000">// get author info and generate DocBook entry<br /></font><font color="#0000BB">$auth </font><font color="#007700">= </font><font color="#DD0000">"24\tLewis Carroll"</font><font color="#007700">;<br /></font><font color="#0000BB">$n </font><font color="#007700">= </font><font color="#0000BB">sscanf</font><font color="#007700">(</font><font color="#0000BB">$auth</font><font color="#007700">, </font><font color="#DD0000">"%d\t%s %s"</font><font color="#007700">, </font><font color="#0000BB">$id</font><font color="#007700">, </font><font color="#0000BB">$first</font><font color="#007700">, </font><font color="#0000BB">$last</font><font color="#007700">);<br />echo </font><font color="#DD0000">"&lt;author id='$id'&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&lt;firstname&gt;$first&lt;/firstname&gt;<br />&nbsp;&nbsp;&nbsp;&nbsp;&lt;surname&gt;$last&lt;/surname&gt;<br />&lt;/author&gt;</font><font color="#007700">\n</font><font color="#DD0000">"</font><font color="#007700">;<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
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>
    </P
><P
>&#13;     See also <A
HREF="function.fscanf.html"
><B
CLASS="function"
>fscanf()</B
></A
>, <A
HREF="function.printf.html"
><B
CLASS="function"
>printf()</B
></A
>,
     and <A
HREF="function.sprintf.html"
><B
CLASS="function"
>sprintf()</B
></A
>. 
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