Access

這是ACCESS的類


Class AccessDBM
{
????var $COUNT = 0;
????var $VALUES = array();
????var $FILE = "";
????var $ERROR = "";
????var $EXISTS = false;
????var $STATIC = false;
????var $EXACT = false;
????var $DBM;

//????Older version of PHP can't do the 'new ClassName(args)'
//????Use initilize() if this is the case.

//????*******************************************************

????function AccessDBM ($dbmFile, $static = 0)
????{
????????global $php_errormsg;

????????if(!empty($dbmFile))
????????{
????????????if(file_exists($dbmFile))
????????????{
????????????????$this->EXISTS = true;
????????????}
????????????if($static != 0)
????????????{
????????????????$this->STATIC = true;
????????????}
????????????$this->FILE = $dbmFile;
????????}
????????return;
????}

//????*******************************************************

//????Identical to AccessDBM
????function initialize ($dbmFile, $static = 0)
????{
????????global $php_errormsg;

????????if(!empty($dbmFile))
????????{
????????????if(file_exists($dbmFile))
????????????{
????????????????$this->EXISTS = true;
????????????}
????????????if($static != 0)
????????????{
????????????????$this->STATIC = true;
????????????}
????????????$this->FILE = $dbmFile;
????????}
????????return;
????}

//????*******************************************************

????function add_entry ($key, $val)
????{
????????$results = 0;
????????$dbm = $this->open_dbm();
????????if(!$dbm) { return false; }

????????if(!(dbmreplace($dbm,$key,$val)))
????????{
????????????if(!(dbmexists($dbm,$key)))
????????????{
????????????????$this->ERROR = "Fatal error : could not replace $key with $val";
????????????????$this->close_dbm($dbm);
????????????????return false;
????????????}
????????}
????????$this->close_dbm($dbm);
????????return true;????????
????}

//????*******************************************************

????function remove_entry ($Key)
????{
????????global $php_errormsg;
????????$removed = false;

????????$dbm = $this->open_dbm();
????????if(!$dbm) { return false; }

????????if(dbmexists($dbm,$Key))
????????{
????????????if(!dbmdelete($dbm,$Key))
????????????{
????????????????if(dbmexists($dbm,$Key))
????????????????{
????????????????????$this->ERROR = "Unable to remove [$Key] : [$php_errormsg]";
????????????????????$this->close_dbm($dbm);
????????????????????return false;
????????????????}
????????????}
????????????else
????????????{
????????????????$this->close_dbm($dbm);
????????????????$removed = true;
????????????}
????????}
????????else
????????{
????????????$this->ERROR = "Key [$Key] does not exist";
????????????$this->close_dbm($dbm);
????????????return false;
????????}
????????return true;
????}

//????*******************************************************

????function get_value ($Key)
????{
????????$val = "";
????????$readOnly = true;

????????$dbm = $this->open_dbm($readOnly);

????????if(!$dbm) { return false; }

????????if(dbmexists($dbm,$Key))
????????{
????????????$val = dbmfetch($dbm,$Key);
????????}
????????$this->close_dbm($dbm);
????????return $val;
????}

//????*******************************************************

????function open_dbm ($readOnly = false)
????{
????????global $php_errormsg;

????????if($this->STATIC)
????????{
????????????if(!(empty($this->DBM)))
????????????{
????????????????$dbm = $this->DBM;
????????????????return ($dbm);
????????????}
????????}

????????$fileName = $this->FILE;

????????if(!$this->EXISTS)
????????{
????????????$dbm = @dbmopen($fileName,"n");
????????}
????????else
????????{
????????????if(!$readOnly)
????????????{
????????????????// We want the warning here if we can't be
????????????????// a writer
????????????????$dbm = dbmopen($fileName,"w");
????????????}
????????????else
????????????{
????????????????$dbm = @dbmopen($fileName,"r");
????????????}
????????}
????????if( (!$dbm) or (empty($dbm)) )
????????{
????????????$this->EXISTS = false;
????????????$this->STATIC = false;
????????????$this->ERROR = "Unable to open [$fileName] [$php_errormsg]";
????????????return false;
????????}
????????$this->EXISTS = true;
????????if($this->STATIC)
????????{
????????????$this->DBM = $dbm;
????????}

????????return ($dbm);

????}

//????*******************************************************

????function find_key ($search)
????{
????????$val = "";

????????$dbm = $this->open_dbm(1);
????????if(!$dbm) { return false; }
????????if(dbmexists($dbm,$search))
????????{
????????????// Wow an exact match
????????????$val = dbmfetch($dbm,$search);
????????????$this->close_dbm($dbm);
????????????$this->EXACT = true;
????????????return $val;
????????}
????????else
????????{
????????????$this->EXACT = false;
????????????$key = dbmfirstkey($dbm);
????????????while ($key)
????????????{
????????????????// Strip the first whitespace char and
????????????????// everything after it.
????????????????$test = ereg_replace(" .*","",$key);
????????????????if(eregi("^$test",$search))
????????????????{
????????????????????$val = dbmfetch($dbm,$key);
????????????????????$this->close_dbm($dbm);
????????????????????error_log("Test [$test] matched [$search]",0);
????????????????????return $val;
????????????????}
????????????????$key = dbmnextkey($dbm,$key);
????????????}
????????}
????????// Didn't find it
????????$this->close_dbm($dbm);
????????return false;
????}

//????*******************************************************

????// Returns the KEY
????function find_val ($search)
????{
????????$this->EXACT = false;

????????$Dbase = $this->get_all();
????????if(empty($Dbase))
????????{
????????????error_log("ERROR Dbase is empty $DB->ERROR",0);
????????????return false;
????????}
????????while ( list ( $key, $val ) = each ($Dbase) )
????????{
????????????if($search == $val)
????????????{
????????????????$this->EXACT=true;
????????????????return $key;
????????????}
????????????else
????????????{
????????????????// Strip the first whitespace char and
????????????????// everything after it.

????????????????$test = ereg_replace(" .*","",$val);

????????????????if(eregi("^$test",$search))
????????????????{
????????????????????$this->EXACT = false;
????????????????????return $key;
????????????????}
????????????}
????????}
????????// Didn't find it
????????return false;
????}

//????*******************************************************

????function get_all ()
????{
????????$values = array();
????????$count = 0;
????????$readOnly = true;
????????$dbm = $this->open_dbm($readOnly);
????????if(!$dbm) { return false; }

????????$key = dbmfirstkey($dbm);

????????while ($key)
????????{
????????????$val = dbmfetch($dbm,$key);
????????????$values[$key] = $val;
????????????$count++;
????????????$key = dbmnextkey($dbm, $key);
????????}
????????$this->COUNT = $count;
????????$this->VALUES = $values;
????????$this->close_dbm($dbm);
????????return $values;
????}

//????*******************************************************

????function close_dbm ($dbm)
????{
????????$results = false;

????????if(!$this->STATIC)
????????{
????????????$results = dbmclose($dbm);
????????}
????????return $results;
????}


//????*******************************************************

????function static_close()
????{
????????$results = false;

????????if(!$this->DBM)
????????{
????????????$this->ERROR = "No static DBM to close";
????????????return false;
????????}
????????$dbm = $this->DBM;
????????$results = dbmclose($dbm);
????????unset($this->DBM);
????????return $results;
????}

//????*******************************************************

}
?>

這個(gè)連接上！
include("class.AccessDBM.php3");
????$static = true;
????$dbase = new AccessDBM("/path/to/file.dbm",$static);


????register_shutdown_function($dbase->static_close());


????if(!$dbase->add_entry("cdi","cdi@thewebmasters.net))
????{
????????echo "Error adding entry: $dbase->ERROR\n";
????}
????$Values = $dbase->get_all()
????while ( list ($key,$val) = each ($Values) )
????{
????????echo "Key: $key??Val: $val \n";
????}
????exit;