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PHP : Function Reference : PostgreSQL Functions : pg_lo_create

pg_lo_create

Create a large object (PHP 4 >= 4.2.0, PHP 5)
int pg_lo_create ( [resource connection] )

Example 1944. pg_lo_create() example

<?php
  $database
= pg_connect("dbname=jacarta");
 
pg_query($database, "begin");
 
$oid = pg_lo_create($database);
  echo
"$oid\n";
 
$handle = pg_lo_open($database, $oid, "w");
  echo
"$handle\n";
 
pg_lo_write($handle, "large object data");
 
pg_lo_close($handle);
 
pg_query($database, "commit");
?>

Code Examples / Notes » pg_lo_create

andrea dot galli

<?php
// --------- OPEN CONN ---
  $conn = pg_connect("host='127.0.0.1' dbname='test' user='usertest' password='passtest'");
// --------- OPEN FILE ---
  $fp = fopen('logo.gif', "r");
  $buffer = fread($fp, filesize('logo.gif'));
  fclose($fp);
// --------- CREATE - INSERT OID ---
  pg_exec($conn, "begin");
  $oid = pg_locreate($conn);
  $rs = pg_exec($conn,"INSERT INTO test(tipo, images) VALUES('A1', $oid);");
  $handle = pg_loopen ($conn, $oid, "w");
  pg_lowrite ($handle, $buffer);
  pg_loclose ($handle);
  pg_exec($conn, "commit");
// --------- OPEN - INSERT OID ---
  $rs = pg_exec($conn, "SELECT images FROM test WHERE tipo = 'A1';");
  $row = pg_fetch_row($rs, 0);
  pg_exec($conn, "begin");
  $loid = pg_loopen($conn, $row[0], "r");
  header("Content-type: image/gif");
  pg_loreadall($loid);
  pg_loclose($loid);
  pg_exec ($conn, "commit");
// --------- UNLINK OID ---
  pg_exec($conn, "begin");
  $loid = $row[0];
  pg_lounlink($conn, $loid);
  pg_exec ($conn, "commit");
// --------- DELETE OID ---
  pg_exec($conn, "DELETE FROM test WHERE tipo = 'A1';");
// --------- CLOSE CONN ---
  pg_close();
?>


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pg_affected_rows
pg_cancel_query
pg_client_encoding
pg_close
pg_connect
pg_connection_busy
pg_connection_reset
pg_connection_status
pg_convert
pg_copy_from
pg_copy_to
pg_dbname
pg_delete
pg_end_copy
pg_escape_bytea
pg_escape_string
pg_execute
pg_fetch_all_columns
pg_fetch_all
pg_fetch_array
pg_fetch_assoc
pg_fetch_object
pg_fetch_result
pg_fetch_row
pg_field_is_null
pg_field_name
pg_field_num
pg_field_prtlen
pg_field_size
pg_field_table
pg_field_type_oid
pg_field_type
pg_free_result
pg_get_notify
pg_get_pid
pg_get_result
pg_host
pg_insert
pg_last_error
pg_last_notice
pg_last_oid
pg_lo_close
pg_lo_create
pg_lo_export
pg_lo_import
pg_lo_open
pg_lo_read_all
pg_lo_read
pg_lo_seek
pg_lo_tell
pg_lo_unlink
pg_lo_write
pg_meta_data
pg_num_fields
pg_num_rows
pg_options
pg_parameter_status
pg_pconnect
pg_ping
pg_port
pg_prepare
pg_put_line
pg_query_params
pg_query
pg_result_error_field
pg_result_error
pg_result_seek
pg_result_status
pg_select
pg_send_execute
pg_send_prepare
pg_send_query_params
pg_send_query
pg_set_client_encoding
pg_set_error_verbosity
pg_trace
pg_transaction_status
pg_tty
pg_unescape_bytea
pg_untrace
pg_update
pg_version
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