PHPCon Poland 2024

Fonctions DBA


  • dba_close — Ferme une base DBA
  • dba_delete — Efface une ligne dans une base DBA
  • dba_exists — Vérifie qu'une clé DBA existe
  • dba_fetch — Lit les données liées à une clé DBA
  • dba_firstkey — Lit la première clé DBA
  • dba_handlers — Liste les gestionnaires DBA disponibles
  • dba_insert — Insère une entrée DBA
  • dba_key_split — Transforme une représentation de clé DBA par chaîne en une représentation par tableau
  • dba_list — Liste tous les fichiers de bases de données DBA ouverts
  • dba_nextkey — Lit la clé DBA suivante
  • dba_open — Ouvre une base de données DBA
  • dba_optimize — Optimise une base DBA
  • dba_popen — Ouvre une connexion persistante à une base de données DBA
  • dba_replace — Remplace ou insère une ligne DBA
  • dba_sync — Synchronise une base de données DBA
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User Contributed Notes 4 notes

Franz Korntner
12 years ago
If you need a 'download data' button that automatically fires up a spreadsheet (like Excel), find that fputcsv() isn't working as expected, that none of the installed DBA database engines create a spreadsheet that can be opened, and that XLS generating components are just too heavy weight, then this might just hit the spot:

// simple table to present
$data = array(

// pretend content (which is XML) is XLS native
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private", false);
header("Content-Type: application/");
header("Content-Disposition: attachment; filename=\"sheet.xls\";" );

// construct skeleton
$dom = new DOMDocument('1.0', 'utf-8');
$dom->formatOutput = $dom->preserveSpaces = true; // optional
$n = new DOMProcessingInstruction('mso-application', 'progid="Excel.Sheet"');

$workbook = $dom->appendChild(new DOMElement('Workbook'));

$styles = $workbook->appendChild(new DOMElement('Styles'));
$style = $styles->appendChild(new DOMElement('Style'));
$worksheet = $workbook->appendChild(new DOMElement('Worksheet'));
$xmltable = $worksheet->appendChild(new DOMElement('Table'));

// populate with data
foreach ($data as $datarow) {
$xmlrow = $xmltable->appendChild(new DOMElement('Row'));
foreach (
$datarow as $datacell) {
$xmlcell = $xmlrow->appendChild(new DOMElement('Cell'));
$xmldata = $xmlcell->appendChild(new DOMElement('Data', $datacell));
$xmldata->setAttribute('ss:Type', is_numeric($datacell) ? 'Number' : 'String');

// display and quit
echo $dom->saveXML();
kevinphpdotnet at stormtide dot ca
20 years ago
When using db4 on redhat 7.3 you may get signal 11s on the apache child processes. The installation test scripts will report that db4 is working correctly as the cli will not sig 11 out. The solution is to check to see if mod_rewrite is installed with apache, if it is either dereference it from or build apache without mod rewrite. Once this is done you will no longer have your child processes dying out and db4 will work. If you do not get a sig 11 after dba_open just ignore this comment.
djm at web dot us dot uu dot net
24 years ago
With db2, you need to call dba_sync() to get the data written to disk; the examples are missing this. db2 uses
the BTREE file format, not the more common HASH.
BTREE is faster, though, in my tests, so it's a good
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