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cubrid_lob_get

(PECL CUBRID >= 8.3.1)

cubrid_lob_getGet BLOB/CLOB data

说明

array cubrid_lob_get ( resource $conn_identifier , string $sql )

cubrid_lob_get() is used to get BLOB/CLOB meta info from CUBRID database, CUBRID gets BLOB/CLOB by executing the SQL statement, and returns all LOBs as a resource array. Be sure that the SQL retrieves only one column and its data type is BLOB or CLOB.

Remember to use cubrid_lob_close() to release the LOBs if you don't need it any more.

参数

conn_identifier

Connection identifier.

sql

SQL statement to be executed.

返回值

Return an array of LOB resources, when process is successful.

FALSE , when process is unsuccessful.

范例

Example #1 cubrid_lob_get() example

<?php
$conn 
cubrid_connect  ( "localhost" 33000 "demodb" "dba" );

cubrid_execute ( $conn , "DROP TABLE if exists doc" );
cubrid_execute ( $conn , "CREATE TABLE doc (id INT, doc_content CLOB)" );
cubrid_execute ( $conn , "INSERT INTO doc VALUES (5,'hello,cubrid')" );

$lobs  cubrid_lob_get ( $conn "SELECT doc_content FROM doc WHERE id=5" );
echo 
"Doc size: " . cubrid_lob_size ( $lobs [ 0 ]). " bytes" ;
cubrid_lob_export ( $conn $lobs [ 0 ],  "doc_5.txt" );
cubrid_lob_close ( $lobs );
cubrid_disconnect ( $conn );
?>

参见

  • cubrid_lob_close() - Close BLOB/CLOB data
  • cubrid_lob_size() - Get BLOB/CLOB data size
  • cubrid_lob_export() - Export BLOB/CLOB data to file
  • cubrid_lob_send() - Read BLOB/CLOB data and send straight to browser
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