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

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

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>OCINewDescriptor</H1
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>    (PHP 3&#62;= 3.0.7, PHP 4 )</P
>OCINewDescriptor&nbsp;--&nbsp;
     Initialize a new empty LOB or FILE descriptor 
    </DIV
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><H2
>Description</H2
>string <B
CLASS="methodname"
>OCINewDescriptor</B
> ( int connection [, int type])<BR
></BR
><P
>&#13;     <B
CLASS="function"
>OCINewDescriptor()</B
> allocates storage to hold
     descriptors or LOB locators. Valid values for
     <TT
CLASS="parameter"
><I
>type</I
></TT
> are OCI_D_FILE, OCI_D_LOB, OCI_D_ROWID.
     For LOB descriptors, the methods load, save, and savefile are 
     associated with the descriptor, for BFILE only the load method
     exists. See the second example usage hints.
    </P
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><B
>Example 1. OCINewDescriptor</B
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><PRE
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>&#60;?php   
    /* This script is designed to be called from a HTML form.
     * It expects $user, $password, $table, $where, and $commitsize
     * to be passed in from the form.  The script then deletes
     * the selected rows using the ROWID and commits after each
     * set of $commitsize rows. (Use with care, there is no rollback)
     */
    $conn = OCILogon($user, $password);
    $stmt = OCIParse($conn,"select rowid from $table $where");
    $rowid = OCINewDescriptor($conn,OCI_D_ROWID);
    OCIDefineByName($stmt,"ROWID",&#38;$rowid);   
    OCIExecute($stmt);
    while ( OCIFetch($stmt) ) {      
       $nrows = OCIRowCount($stmt);
       $delete = OCIParse($conn,"delete from $table where ROWID = :rid");
       OCIBindByName($delete,":rid",&#38;$rowid,-1,OCI_B_ROWID);
       OCIExecute($delete);      
       print "$nrows\n";
       if ( ($nrows % $commitsize) == 0 ) {
           OCICommit($conn);      
       }   
    }
    $nrows = OCIRowCount($stmt);   
    print "$nrows deleted...\n";
    OCIFreeStatement($stmt);  
    OCILogoff($conn);
?&#62;</PRE
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>&#60;?php
    /* This script demonstrates file upload to LOB columns
     * The formfield used for this example looks like this
     * &#60;form action="upload.php" method="post" enctype="multipart/form-data"&#62;
     * &#60;input type="file" name="lob_upload"&#62;
     * ...
     */
  if(!isset($lob_upload) || $lob_upload == 'none'){
?&#62;
&#60;form action="upload.php" method="post" enctype="multipart/form-data"&#62;
Upload file: &#60;input type="file" name="lob_upload"&#62;&#60;br&#62;
&#60;input type="submit" value="Upload"&#62; - &#60;input type="reset"&#62;
&#60;/form&#62;
&#60;?php
  } else {

     // $lob_upload contains the temporary filename of the uploaded file

     // see also the features section on file upload,
     // if you would like to use secure uploads
     
     $conn = OCILogon($user, $password);
     $lob = OCINewDescriptor($conn, OCI_D_LOB);
     $stmt = OCIParse($conn,"insert into $table (id, the_blob) 
               values(my_seq.NEXTVAL, EMPTY_BLOB()) returning the_blob into :the_blob");
     OCIBindByName($stmt, ':the_blob', &#38;$lob, -1, OCI_B_BLOB);
     OCIExecute($stmt, OCI_DEFAULT);
     if($lob-&#62;savefile($lob_upload)){
        OCICommit($conn);
        echo "Blob successfully uploaded\n";
     }else{
        echo "Couldn't upload Blob\n";
     }
     OCIFreeDesc($lob);
     OCIFreeStatement($stmt);
     OCILogoff($conn);
  }
?&#62;</PRE
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><B
>Example 2. OCINewDescriptor</B
></P
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>&#60;?php   
    /* Calling PL/SQL stored procedures which contain clobs as input
     * parameters (PHP 4 &#62;= 4.0.6). 
     * Example PL/SQL stored procedure signature is:
     *
     * PROCEDURE save_data
     *   Argument Name                  Type                    In/Out Default?
     *   ------------------------------ ----------------------- ------ --------
     *   KEY                            NUMBER(38)              IN
     *   DATA                           CLOB                    IN
     *
     */

    $conn = OCILogon($user, $password);
    $stmt = OCIParse($conn, "begin save_data(:key, :data); end;");
    $clob = OCINewDescriptor($conn, OCI_D_LOB);
	OCIBindByName($stmt, ':key', $key);
	OCIBindByName($stmt, ':data', $clob, -1, OCI_B_CLOB);
	$clob-&#62;WriteTemporary($data);
	OCIExecute($stmt, OCI_DEFAULT);
	OCICommit($conn);
	$clob-&#62;close();
	$clob-&#62;free();
	OCIFreeStatement($stmt);
?&#62;</PRE
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