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php-manual-en-4.3.0-2mdk.noarch.rpm

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><H1
><A
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>rtrim</H1
><DIV
CLASS="refnamediv"
><A
NAME="AEN90443"
></A
><P
>    (PHP 3, PHP 4 )</P
>rtrim&nbsp;--&nbsp;
     Strip whitespace from the end of a string
    </DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN90446"
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><H2
>Description</H2
>string <B
CLASS="methodname"
>rtrim</B
> ( string str [, string charlist])<BR
></BR
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
      The second parameter was added in PHP 4.1.0
     </P
></BLOCKQUOTE
></DIV
><P
>&#13;     This function returns a string with whitespace stripped from the
     end of <TT
CLASS="parameter"
><I
>str</I
></TT
>.
     Without the second parameter,
     <B
CLASS="function"
>rtrim()</B
> will strip these characters:
     
     <P
></P
><UL
><LI
><P
>&#13;        " " (<SPAN
CLASS="acronym"
>ASCII</SPAN
> <TT
CLASS="literal"
>32</TT
> 
        (<TT
CLASS="literal"
>0x20</TT
>)), an ordinary space.
       </P
></LI
><LI
><P
>&#13;        "\t" (<SPAN
CLASS="acronym"
>ASCII</SPAN
> <TT
CLASS="literal"
>9</TT
> 
        (<TT
CLASS="literal"
>0x09</TT
>)), a tab.
       </P
></LI
><LI
><P
>&#13;        "\n" (<SPAN
CLASS="acronym"
>ASCII</SPAN
> <TT
CLASS="literal"
>10</TT
> 
        (<TT
CLASS="literal"
>0x0A</TT
>)), a new line (line feed).
       </P
></LI
><LI
><P
>&#13;        "\r" (<SPAN
CLASS="acronym"
>ASCII</SPAN
> <TT
CLASS="literal"
>13</TT
> 
        (<TT
CLASS="literal"
>0x0D</TT
>)), a carriage return.
       </P
></LI
><LI
><P
>&#13;        "\0" (<SPAN
CLASS="acronym"
>ASCII</SPAN
> <TT
CLASS="literal"
>0</TT
> 
        (<TT
CLASS="literal"
>0x00</TT
>)), the <TT
CLASS="literal"
>NUL</TT
>-byte.
       </P
></LI
><LI
><P
> 
        "\x0B" (<SPAN
CLASS="acronym"
>ASCII</SPAN
> <TT
CLASS="literal"
>11</TT
> 
        (<TT
CLASS="literal"
>0x0B</TT
>)), a vertical tab.
       </P
></LI
></UL
>
    </P
><P
>&#13;     You can also specify the characters you want to strip, by means
     of the <TT
CLASS="parameter"
><I
>charlist</I
></TT
> parameter.
     Simply list all characters that you want to be stripped. With
     <TT
CLASS="literal"
>..</TT
> you can specify a range of characters.
    </P
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></A
><P
><B
>Example 1. Usage example of <B
CLASS="function"
>rtrim()</B
></B
></P
><P
>&#13;      <TABLE
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><PRE
CLASS="php"
>&#60;?php

$text = "\t\tThese are a few words :) ...  ";
$trimmed = rtrim($text);
// $trimmed = "\t\tThese are a few words :) ..."
$trimmed = rtrim($text," \t.");
// $trimmed = "\t\tThese are a few words :)"
$clean = rtrim($binary,"\0x00..\0x1F");
// trim the ASCII control characters at the end of $binary 
// (from 0 to 31 inclusive)

?&#62;</PRE
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>
     </P
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><P
>&#13;     See also <A
HREF="function.trim.html"
><B
CLASS="function"
>trim()</B
></A
> and <A
HREF="function.ltrim.html"
><B
CLASS="function"
>ltrim()</B
></A
>.
    </P
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