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90 lines
2.5 KiB
PHP
90 lines
2.5 KiB
PHP
<?php
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echo "database handler: $handler\n";
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do {
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if (($db_file = dba_open($db_filename, 'n'.$lock_flag, $handler))!==FALSE) {
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dba_insert("key1", "Content String 1", $db_file);
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dba_insert("key2", "Content String 2", $db_file);
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dba_insert("key3", "Third Content String", $db_file);
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dba_insert("key4", "Another Content String", $db_file);
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dba_insert("key5", "The last content string", $db_file);
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if ($handler != 'cdb') {
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dba_delete("key3", $db_file);
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dba_delete("key1", $db_file);
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} else {
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dba_close($db_file);
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if (($db_file = dba_open($db_filename, 'r'.$lock_flag, $handler))===FALSE) {
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echo "Error reopening database\n";
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}
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}
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$a = dba_firstkey($db_file);
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$i=0;
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while($a) {
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$a = dba_nextkey($db_file);
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$i++;
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}
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echo $i;
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for ($i=1; $i<6; $i++) {
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echo dba_exists("key$i", $db_file) ? "Y" : "N";
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}
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echo "\n";
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echo dba_fetch("key2", $db_file)."\n";
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if ($handler != 'cdb') {
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dba_replace("key2", "Content 2 replaced", $db_file);
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echo dba_fetch("key2", $db_file)."\n";
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}
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dba_close($db_file);
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} else {
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echo "Error creating database\n";
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}
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if ($handler != 'cdb') {
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$db_writer = dba_open($db_filename, 'c'.$lock_flag, $handler);
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if (($dba_reader = @dba_open($db_filename, 'r'.$lock_flag.($lock_flag ? 't' : ''), $handler))===false) {
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echo "Read during write: not allowed\n";
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} else {
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echo "Read during write: allowed\n";
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}
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if ($db_writer!==FALSE) {
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dba_insert("key number 6", "The 6th value", $db_writer);
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@dba_insert("key number 6", "The 6th value inserted again would be an error", $db_writer);
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dba_replace("key2", "Content 2 replaced 2nd time", $db_writer);
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dba_delete("key4", $db_writer);
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echo dba_fetch("key2", $db_writer)."\n";
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echo dba_fetch("key number 6", $db_writer)."\n";
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dba_close($db_writer); // when the writer is open at least db3 would fail because of buffered io.
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} else {
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die("Error reopening database\n");
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}
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}
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if (($db_file = dba_open($db_filename, 'r'.$lock_flag, $handler))!==FALSE) {
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$key = dba_firstkey($db_file);
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$res = array();
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while($key) {
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$res[$key] = dba_fetch($key, $db_file);
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$key = dba_nextkey($db_file);
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}
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ksort($res);
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var_dump($res);
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dba_close($db_file);
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} else {
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echo "Error reading database\n";
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}
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if (!empty($dba_reader)) {
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dba_close($dba_reader);
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}
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if (($db_file = dba_popen($db_filename, 'r'.($lock_flag==''?'':'-'), $handler))!==FALSE) {
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if ($handler == 'dbm') {
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dba_close($db_file);
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}
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}
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if ($lock_flag == '') {
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break;
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} else {
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echo "--NO-LOCK--\n";
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$lock_flag = '';
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}
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} while(1);
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?>
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