Sophie: php-manual-en-4.3.0-2mdk noarch

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

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>popen</H1
><DIV
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><A
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></A
><P
>    (PHP 3, PHP 4 )</P
>popen&nbsp;--&nbsp;Opens process file pointer</DIV
><DIV
CLASS="refsect1"
><A
NAME="AEN26777"
></A
><H2
>Description</H2
>resource <B
CLASS="methodname"
>popen</B
> ( string command, string mode)<BR
></BR
><P
> 
     Opens a pipe to a process executed by forking the command given
     by command.
    </P
><P
> 
     Returns a file pointer identical to that returned by
     <A
HREF="function.fopen.html"
><B
CLASS="function"
>fopen()</B
></A
>, except that it is unidirectional (may
     only be used for reading or writing) and must be closed with
     <A
HREF="function.pclose.html"
><B
CLASS="function"
>pclose()</B
></A
>. This pointer may be used with
     <A
HREF="function.fgets.html"
><B
CLASS="function"
>fgets()</B
></A
>, <A
HREF="function.fgetss.html"
><B
CLASS="function"
>fgetss()</B
></A
>, and
     <A
HREF="function.fputs.html"
><B
CLASS="function"
>fputs()</B
></A
>.
    </P
><P
>&#13;     If an error occurs, returns <TT
CLASS="constant"
><B
>FALSE</B
></TT
>. 
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
      If you're looking for bi-directional support (two-way), use 
      <A
HREF="function.proc-open.html"
><B
CLASS="function"
>proc_open()</B
></A
>.
     </P
></BLOCKQUOTE
></DIV
><P
>&#13;    <TABLE
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><A
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><P
><B
>Example 1. <B
CLASS="function"
>popen()</B
> examole</B
></P
><TABLE
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><TR
><TD
><PRE
CLASS="php"
>&#60;?php
$handle = popen ("/bin/ls", "r");
?&#62;</PRE
></TD
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></TABLE
></DIV
></TD
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>
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Note: </B
>
      If the command to be executed could not be found, a valid
      resource is returned. This may seem odd, but makes sense; it
      allows you to access any error message returned by the shell:
      <DIV
CLASS="informalexample"
><A
NAME="AEN26807"
></A
><P
></P
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><PRE
CLASS="php"
>&#60;?php
error_reporting(E_ALL);

/* Add redirection so we can get stderr. */
$handle = popen('/path/to/spooge 2&#62;&#38;1', 'r');
echo "'$handle'; " . gettype($handle) . "\n";
$read = fread($handle, 2096);
echo $read;
pclose($handle);
?&#62;</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
>
     </P
></BLOCKQUOTE
></DIV
><P
>&#13;     See also <A
HREF="function.pclose.html"
><B
CLASS="function"
>pclose()</B
></A
>, <A
HREF="function.fopen.html"
><B
CLASS="function"
>fopen()</B
></A
>,
     and <A
HREF="function.proc-open.html"
><B
CLASS="function"
>proc_open()</B
></A
>.
    </P
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