PHP & array processing

Question

Hello,
Can PHP process more rows in ocifetch ?
regards

Answer 1

I did a little testing on Windows 2000 using SQL*Plus and client
libraries from Oracle 9.2. The DB was a 9.2 release on a remote
machine.
The SQL script was:
  connect scott/tiger@mydb
  define AS = 1
  prompt Arraysize &AS
  set arraysize &AS
  set pagesize 0
  set linesize 200
  set termout off
  spool c:\temp\bmsp.log
  timing start
  select * from all_objects order by 1;
  spool off
  set termout on
  timing stopThe PHP file was:
  <?php
  require("ScriptTimer.php");  // from user comments on "microtime" man page
  $pfrc = 1;
  $filename = "c:/temp/bmphp.log";
  $conn = OCILogon('scott', 'tiger', 'mydb');
  Script_Timer::Start_Timer();
  if (!$handle = fopen($filename, 'w')) {
    echo "Cannot open file ($filename)";
    exit;
  $query = 'select * from all_objects order by 1';
  $stid = OCIParse($conn, $query);
  OCIExecute($stid);
  OCISetPrefetch($stid, $pfrc);
  while ($succ = OCIFetchInto($stid, $row)) {
    foreach ($row as $item) {
      fwrite($handle, $item." ");
    fwrite($handle, "\n");
  fclose($handle);
  $total_time = Script_Timer::Get_Time(3);
  echo "$pfrc Time was $total_time\n";
  ?>SQL*Plus 9.2 results:
   Time   Arraysize        
   2.1    1000             
   2.1    500              
   2.1    250              
   3.0    100              
   3.0    50               
   4.1    10               
   9.1    1                 PHP (CLI) 4.3.4 results:
   Time   Prefetchrowcount
   4.5    1000           
   4.5    500            
   4.6    250            
   4.7    100            
   4.8    50             
   5.7    10             
   9.2    1               This was a pretty rudimentary benchmark. There are a lot of areas of
difference between SQL*Plus and PHP that could be debated and
examined.
Overall I'm comfortable that PHP's prefetchrowcount has a positive
effect.
-- CJ