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First commit. Check if all is uploaded well.
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Kevin Puertas
190
lib/dbwrapper.php
Executable file
190
lib/dbwrapper.php
Executable file
@@ -0,0 +1,190 @@
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<?php
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/* DBWrapper.php - Version 1.4.1
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This script is a simple wrapper for SQLite3, MySQL and PgSQL,
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for make possible to use different BD systems without changing the functions.
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For use, in dbw_connect you have to specify type of database (see below)
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Read README.md for details of every function and use
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*/
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/** Connect with database */
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function dbw_connect($tdb,$server,$database=NULL,$user = NULL,$password=NULL){
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switch ($tdb){
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case "mysql":
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case "mysqli":
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$return[0] = mysqli_connect($server,$user,$password,$database) or die("Error de conexion");
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$return[1] = "mysqli"; //Return standard mysqli for other funcs.
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break;
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case "sqlite":
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case "sqlite3":
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$return[0] = new SQLite3($server);
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if (!$return[0]) die ("Error de conexion");
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$return[1] = "sqlite"; //Return standard SQLite3 for other funcs.
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break;
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case "PostgreSQL":
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case "pg":
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case "PgSQL":
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$return[0] = pg_connect("host=$server dbname=$database user=$user password=$password") or die ('Error de conexion: ' . pg_last_error());
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$return[1] = "PgSQL"; //Return standard PgSQL for other funcs.
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break;
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default:
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return false;
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break;
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}
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return $return;
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}
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/** Escapes conflictive chars for inserting into database */
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function dbw_escape_string($conn,$string){
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switch ($conn[1]){
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case "mysqli":
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return mysqli_escape_string($conn[0],$string);
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case "sqlite":
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return SQLite3::escapeString($string);
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case "PgSQL":
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return pg_escape_string($string);
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}
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}
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/** Make query */
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function dbw_query($conn,$query){
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switch ($conn[1]){
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case "mysqli":
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return mysqli_query($conn[0],$query);
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case "sqlite":
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return $conn[0]->query($query);
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case "PgSQL":
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return pg_query($query); //Last error (pg_last_error()) not implemented
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}
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}
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/** Fetch array from query */
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function dbw_fetch_array($conn,$result,$typearray = NULL){
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if ($result == false || $result == NULL){return false;}
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switch ($conn[1]){
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case "mysqli":
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if ($typearray == NULL || $typearray == "BOTH"){return mysqli_fetch_array($result);}
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if ($typearray == "ASSOC"){return mysqli_fetch_array($result,MYSQLI_ASSOC);}
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if ($typearray == "NUM"){return mysqli_fetch_array($result,MYSQLI_NUM);}
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break;
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case "sqlite":
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if ($typearray == NULL || $typearray == "BOTH"){return $result->fetchArray();}
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if ($typearray == "ASSOC"){return $result->fetchArray(SQLITE3_ASSOC);}
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if ($typearray == "NUM"){return $result->fetchArray(SQLITE3_NUM);}
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break;
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case "PgSQL":
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if ($typearray == NULL || $typearray == "BOTH"){return pg_fetch_array($result);}
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if ($typearray == "ASSOC"){return pg_fetch_array($result,NULL,PGSQL_ASSOC);}
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if ($typearray == "NUM"){return pg_fetch_array($result,NULL,PGSQL_NUM);}
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break;
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}
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}
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/** Make query and fetch array */
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function dbw_query_fetch_array($conn,$query){
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switch ($conn[1]){
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case "mysqli":
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$query = mysqli_query($conn[0],$query);
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if ($query == false || $query == NULL){return false;}
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return mysqli_fetch_array($query);
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break;
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case "sqlite":
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$query = $conn[0]->query($query);
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if ($query == false || $query == NULL){return false;}
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return $query->fetchArray();
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break;
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case "PgSQL":
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$query = pg_query($query);
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if ($query == false || $query == NULL){return false;}
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return pg_fetch_array($query); //Last error (pg_last_error()) not implemented
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break;
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}
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}
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/** Goes a query to $row. $row starts in 0 as first row as if not specified */
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function dbw_query_goto($conn,$result,$row = 0){
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switch ($conn[1]){
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case "mysqli":
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mysqli_data_seek($result,$row);
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break;
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case "sqlite":
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$result->reset();
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$count = 0;
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while ($count != $row){
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$result->fetchArray();
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}
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break;
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case "PgSQL":
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pg_result_seek($result, $row);
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break;
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}
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}
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/** Does multiple querys in one command */
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function dbw_multi_query($conn,$query){
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switch ($conn[1]){
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case "mysqli":
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mysqli_multi_query($conn[0],$query);
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break;
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case "sqlite":
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$conn[0]->exec($query);
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break;
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case "PgSQL":
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$null = pg_query($query);
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break;
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}
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}
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/** Returns the lastest Insert ID */
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function dbw_last_id($conn){
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switch ($conn[1]){
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case "mysqli":
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return mysqli_insert_id($conn[0]);
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case "sqlite":
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return $conn[0]->lastInsertRowID();
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case "PgSQL":
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return pg_fetch_array(pg_query("SELECT lastval();"))[0];
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}
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}
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/** Returns number of results */
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function dbw_num_rows($conn,$result){
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switch ($conn[1]){
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case "mysqli":
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return mysqli_num_rows($result);
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case "sqlite":
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return $result->numRows();
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case "PgSQL":
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return pg_num_rows ($result);
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}
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}
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/** Close connection */
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function dbw_close($conn){
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switch ($conn[1]){
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case "mysqli":
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mysqli_close($conn[0]);
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break;
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case "sqlite":
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$conn[0]->close();
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break;
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case "PgSQL":
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pg_close($conn[0]);
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break;
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}
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}
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/** Some internal wrappers for functions that are equal to other with arguments */
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function dbw_fetch_assoc($conn,$result){return dbw_fetch_array($conn,$result,"ASSOC");}
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function dbw_fetch_row($conn,$result){return dbw_fetch_array($conn,$result,"NUM");}
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function dbw_data_seek($conn,$result){return dbw_query_goto($conn,$result,$row = 0);}
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function dbw_result_seek($conn,$result){return dbw_query_goto($conn,$result,$row = 0);}
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function dbw_insert_id($conn){return dbw_last_id($conn);}
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?>
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