IBM DB2 Functions
PHP Manual

db2_fetch_row

Sets the result set pointer to the next row or requested row

Description

bool db2_fetch_row(resource $stmt, int $row_number = -1)

Use db2_fetch_row to iterate through a result set, or to point to a specific row in a result set if you requested a scrollable cursor.

To retrieve individual fields from the result set, call the db2_result function.

Rather than calling db2_fetch_row and db2_result, most applications will call one of db2_fetch_assoc, db2_fetch_both, or db2_fetch_array to advance the result set pointer and return a complete row as an array.

Parameters

stmt

A valid stmt resource.

row_number

With scrollable cursors, you can request a specific row number in the result set. Row numbering is 1-indexed.

Return Values

Returns true if the requested row exists in the result set. Returns false if the requested row does not exist in the result set.

Examples

Example #1 Iterating through a result set

The following example demonstrates how to iterate through a result set with db2_fetch_row and retrieve columns from the result set with db2_result. 

<?php
$sql = 'SELECT name, breed FROM animals WHERE weight < ?';
$stmt = db2_prepare($conn, $sql);
db2_execute($stmt, array(10));
while (db2_fetch_row($stmt)) {
    $name = db2_result($stmt, 0);
    $breed = db2_result($stmt, 1);
    print "$name $breed";
}
?>

The above example will output:

cat Pook
gold fish Bubbles
budgerigar Gizmo
goat Rickety Ride

Example #2 i5/OS recommended alternatives to db2_fetch_row/db2_result

On i5/OS it is recommended that you use db2_fetch_both, db2_fetch_array, or db2_fetch_object over db2_fetch_row/db2_result. In general db2_fetch_row/db2_result have more issues with various column types in EBCIDIC to ASCII translation, including possible truncation in DBCS applications. You may also find the performance of db2_fetch_both, db2_fetch_array, and db2_fetch_object to be superior to db2_fetch_row/db2_result. 

<?php
  $conn = db2_connect("","","");
  $sql = 'SELECT SPECIFIC_SCHEMA, SPECIFIC_NAME, ROUTINE_SCHEMA, ROUTINE_NAME, ROUTINE_TYPE, ROUTINE_CREATED, ROUTINE_BODY, IN_PARMS, OUT_PARMS, INOUT_PARMS, PARAMETER_STYLE, EXTERNAL_NAME, EXTERNAL_LANGUAGE FROM QSYS2.SYSROUTINES FETCH FIRST 2 ROWS ONLY';
  $stmt = db2_exec($conn, $sql, array('cursor' => DB2_SCROLLABLE));
  while ($row = db2_fetch_both($stmt)){
    echo "<br>db2_fetch_both {$row['SPECIFIC_NAME']} {$row['ROUTINE_CREATED']} {$row[5]}";
  }
  $stmt = db2_exec($conn, $sql, array('cursor' => DB2_SCROLLABLE));
  while ($row = db2_fetch_array($stmt)){
    echo "<br>db2_fetch_array {$row[1]}  {$row[5]}";
  }
  $stmt = db2_exec($conn, $sql, array('cursor' => DB2_SCROLLABLE));
  while ($row = db2_fetch_object($stmt)){
    echo "<br>db2_fetch_object {$row->SPECIFIC_NAME} {$row->ROUTINE_CREATED}";
  }
  db2_close($conn);
?>

The above example will output:

db2_fetch_both MATCH_ANIMAL 2006-08-25-17.10.23.775000 2006-08-25-17.10.23.775000
db2_fetch_both MULTIRESULTS 2006-10-17-10.11.05.308000 2006-10-17-10.11.05.308000
db2_fetch_array MATCH_ANIMAL 2006-08-25-17.10.23.775000
db2_fetch_array MULTIRESULTS 2006-10-17-10.11.05.308000
db2_fetch_object MATCH_ANIMAL 2006-08-25-17.10.23.775000
db2_fetch_object MULTIRESULTS 2006-10-17-10.11.05.308000

See Also

  • db2_fetch_array
  • db2_fetch_assoc
  • db2_fetch_both
  • db2_fetch_object
  • db2_result