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common_pdo.php
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common_pdo.php
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<?php
// ==================== server access (localhost / production)
// +++++++++ CHANGE HERE application globals:
// $weburl ='http://sillano.hopto.org:8880/bridge/'; // example: internet public using no_ip.org
// $weburl ='http://192.168.1.55:88/www/bridge/' ; // example: local net. wifi
$weburl ='http://localhost:88/bridge/'; // example: local server, debug
// application password (difference between guest/user)
$appPass = '44b8e497c5f15d970d7346d39cd52a16'; // example: 'giobridge'
// to change $appPass:
// echo md5(trim( 'the_password'));
// ==================== GENERAL PDO-MYSQL
/*
Use $parameters as couples [key ':name' => value 'a_value']
to protect from 'injection attack' in user-defined values (optional).
Use only $statment if safe (not from user or cheked values).
*/
function sql($statment, $parameters = array()){
$dbServer = 'localhost'; // default
$dbDatabase = 'bridge'; // default
// +++++++++ CHANGE HERE MySql values:
$dbUsername = 'root'; // example: localhost debug
$dbPassword = ''; // example: localhost debug
// $dbPassword = 'secret'; // example: production
//====================================================
static $pdo = NULL;
if(!$pdo){
/****** Connect to MySQL via PDO ******/
if(!extension_loaded('pdo_mysql')){
echo "<div class=error>INTERNAL ERROR: PHP is not configured to connect to MySQL via PDO on this machine.
Please see <a href=https://www.php.net/manual/en/pdo.installation.php>this page</a> for help
on how to configure php.</div>";
exit;
}
try {
$pdo = new PDO( "mysql: host=$dbServer;dbname=$dbDatabase;charset=utf8", $dbUsername, $dbPassword );
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
echo '<div class=error>INTERNAL ERROR: Error in connection <br />'. $e->getMessage().'</div>';
exit;
}
} // ends $pdo == false
try {
$query = $pdo->prepare($statment);
$query->execute($parameters);
} catch (PDOException $e) {
echo '<div class=error>INTERNAL ERROR: Query error <br />'. $e->getMessage()." <br> in \"$statment\"</div>";
exit;
}
// $pdo = NULL; // closed at page end
return $query;
}
// return only a value
function sqlValue($query, $parameters = array()) {
$result = sql($query, $parameters);
$row =$result->fetch();
$result = NULL;
return $row[0];
}
// return an array of values: array[]=row[0]
function sqlArray($query, $parameters = array()) {
$result = sql($query, $parameters);
$dats = $result->fetchAll(PDO::FETCH_COLUMN, 0);
$result = NULL;
return $dats;
}
// return the full array of records
function sqlRecord($query, $parameters = array()) {
$result = sql($query, $parameters);
$dats = $result->fetchAll();
$result = NULL;
return $dats;
}
// return an associative lookup: array[row[0]]=row[1]
function sqlLookup($query, $parameters = array()) {
$result = sql($query, $parameters);
$dats = array();
while( $row = $result->fetch()){
$dats[$row[0]] = $row[1];
}
$result = NULL;
return $dats;
}
// ================================== ENDS GENERAL PDO-MYSQL
//=========== some mysql-HTML utilities:
// per combo input, options da una query (id, value)
function optionsList($query, $selected = -1){
$options = '';
$ops = sqlLookup($query);
while (list($chiave, $valore) = each($ops)) {
$options .= "<option value='$chiave' ".($chiave == $selected ? ' selected = "selected"':'')." >$valore</option>\n";
}
return $options;
}
// per combo input, coppie numeriche
function optionsNList($from, $to, $selected){
$options = '';
for($i = $from; $i < $to; $i++) {
$options .= "<option value='$i'".($i == $selected ? ' selected = "selected"':'')." >$i</option>\n" ;
}
return $options;
}
// per checklist, da una query (id, value, list di chiavi|true|false)
function checkList($query,$name,$checked){
$check = '';
$ops = sqlLookup($query);
$i = 1;
while (list($chiave, $valore) = each($ops)) {
if ( is_array($checked )){
$check .= "<input type='checkbox' name='$name".$i++."' value='$chiave' ".(
array_search($chiave,$checked)!== false ?"checked='checked'":'')." />$valore<br />";
} else {
$check .= "<input type='checkbox' name='$name".$i++."' value='$chiave' ".($checked?"checked='checked'":'')." />$valore<br />";
}
}
return $check;
}
// per redirect ad una nuova pagina da php
function movePage($num,$url){
static $http = array (
100 => "HTTP/1.1 100 Continue",
101 => "HTTP/1.1 101 Switching Protocols",
200 => "HTTP/1.1 200 OK",
201 => "HTTP/1.1 201 Created",
202 => "HTTP/1.1 202 Accepted",
203 => "HTTP/1.1 203 Non-Authoritative Information",
204 => "HTTP/1.1 204 No Content",
205 => "HTTP/1.1 205 Reset Content",
206 => "HTTP/1.1 206 Partial Content",
300 => "HTTP/1.1 300 Multiple Choices",
301 => "HTTP/1.1 301 Moved Permanently",
302 => "HTTP/1.1 302 Found",
303 => "HTTP/1.1 303 See Other",
304 => "HTTP/1.1 304 Not Modified",
305 => "HTTP/1.1 305 Use Proxy",
307 => "HTTP/1.1 307 Temporary Redirect",
400 => "HTTP/1.1 400 Bad Request",
401 => "HTTP/1.1 401 Unauthorized",
402 => "HTTP/1.1 402 Payment Required",
403 => "HTTP/1.1 403 Forbidden",
404 => "HTTP/1.1 404 Not Found",
405 => "HTTP/1.1 405 Method Not Allowed",
406 => "HTTP/1.1 406 Not Acceptable",
407 => "HTTP/1.1 407 Proxy Authentication Required",
408 => "HTTP/1.1 408 Request Time-out",
409 => "HTTP/1.1 409 Conflict",
410 => "HTTP/1.1 410 Gone",
411 => "HTTP/1.1 411 Length Required",
412 => "HTTP/1.1 412 Precondition Failed",
413 => "HTTP/1.1 413 Request Entity Too Large",
414 => "HTTP/1.1 414 Request-URI Too Large",
415 => "HTTP/1.1 415 Unsupported Media Type",
416 => "HTTP/1.1 416 Requested range not satisfiable",
417 => "HTTP/1.1 417 Expectation Failed",
500 => "HTTP/1.1 500 Internal Server Error",
501 => "HTTP/1.1 501 Not Implemented",
502 => "HTTP/1.1 502 Bad Gateway",
503 => "HTTP/1.1 503 Service Unavailable",
504 => "HTTP/1.1 504 Gateway Time-out"
);
header($http[$num]);
header ("Location: $url");
exit;
}
?>