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X.php
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<?php
class X
{
public static $conn;
public static $db = '';
public static $tbl = '';
public static $selectStr = '';
public static $whereStr = '';
public static $whereOrStr = '';
public static $orderByStr = '';
public static $groupByStr = '';
public static $limitStr = '';
public static $debugConfig = 0;
public static $recursive = 0;
function __construct()
{}
function __destruct()
{
self::clear();
}
public static function clear()
{
self::$conn = null;
self::$db = null;
self::$tbl = null;
self::$selectStr = null;
self::$whereStr = null;
self::$whereOrStr = null;
self::$debugConfig = null;
self::$orderByStr = null;
self::$groupByStr = null;
self::$limitStr = null;
self::$recursive = null;
}
public static function flush()
{
self::$tbl = null;
self::$selectStr = null;
self::$whereStr = null;
self::$whereOrStr = null;
self::$orderByStr = null;
self::$groupByStr = null;
self::$limitStr = null;
}
// get array to json
public static function getJson($arr = '')
{
return json_encode($arr);
}
// get array to Object
public static function getObject($arr = '')
{
return json_decode(json_encode($arr));
}
// /////////////////////////////////////////////////////////////////////////////
public static function setup($constr, $user, $pass, $debugConfig = 0)
{
try {
self::clear();
self::$debugConfig = $debugConfig;
$conn = new PDO($constr, $user, $pass);
// set the PDO error mode to exception
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
self::$conn = $conn;
//"Connected successfully";
return true;
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span></hr> ' . " Connection failed: " . $e->getMessage();
}
}
//
// /////////////////////////////////////////////////////////////////////////////
public static function getAll($sql)
{
try {
// return self::$conn->query($sql, PDO::FETCH_ASSOC);
$stmt = self::$conn->prepare($sql);
$stmt->execute();
// set the resulting array to associative
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);
return $result;
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . "</hr>" . $e->getMessage();
}
}
public static function getPrimeryKey($tbl)
{
$id = self::getAll('SHOW KEYS FROM ' . $tbl . ' WHERE Key_name = "PRIMARY"');
return $id[0]['Column_name'];
}
public static function debug($v, $ex = 1)
{
echo '<pre>';
print_r($v);
echo '</pre>';
if ($ex)
exit();
}
public static function dx($v)
{
echo '<hr><span style="color:blue;">*****</span> <span style="color:green;"> ';
print($v);
echo ' </span><span style="color:blue;">*****</span> </hr>';
}
/*
* Ge the relational schema for fetch related data;
* @paramm $tbl table name
* return sql for related data
*/
public static function getRelationSchema($tbl)
{
$sql = " SELECT CONCAT( `CONSTRAINT_SCHEMA`, '.', table_name, '.', column_name ) AS 'foreignKey',column_name as foreignKeySimple, CONCAT( `REFERENCED_TABLE_SCHEMA`, '.', referenced_table_name, '.', referenced_column_name ) AS 'references', CONCAT( `REFERENCED_TABLE_SCHEMA`, '.',referenced_table_name) AS tableName, constraint_name AS 'constraintName', REFERENCED_TABLE_SCHEMA AS dbName FROM information_schema.key_column_usage WHERE `TABLE_NAME` = '$tbl' ";
return self::getAll($sql);
}
/*
* Ge the relational data each in array form;
* @paramm $tbl table name
* return sql for related data
*/
public static function getRelatedDataEach($tbl, $id = '')
{
self::$recursive= 0;
$results = self::getRelationSchema($tbl);
$relatedTables = $data = $endData = $primeries = array();
if (count($results) >= 1) {
foreach ($results as $i => $v) {
if (! empty($v['foreignKey']) && ! empty($v['references'])) {
$relatedTables[$v['foreignKeySimple']] = self::load($v['tableName']);
$pid = self::getPrimeryKey($v['tableName']);
$primeries[$v['foreignKeySimple']] = $pid;
}
}
}
//setting index as primary id
foreach ($relatedTables as $j=>$k){
foreach ($k as $i=>$v){
$data[$j][$v[$primeries[$j]]] = $v;
}
}
//loading main table in array
$endData = self::load($tbl, $id);
foreach($endData as $i=>$v){
foreach($v as $x=>$z){
if(array_key_exists($x, $data)) {
if(array_key_exists($z, $data[$x])) {
$v[$x.'_X'] = $data[$x][$v[$x]];
$endData[$i] = $v;
}
}
}
}
return $endData;
}
/*
* Ge the relational data query for fetch related data;
* @paramm $tbl table name
* return sql for related data
*/
public static function getRelatedDataQuery($tbl, $id = '')
{
$results = self::getRelationSchema($tbl);
$relatedTables = array();
$returnSql = ' ';
$select = 'SELECT ';
$joins = '';
$where = '';
if (count($results) >= 1) {
foreach ($results as $i => $v) {
if (! empty($v['foreignKey']) && ! empty($v['references'])) {
$relatedTables[$v['dbName']] = $v['tableName'];
// concatinating related tables and fields
$select .= ' ' . $v['tableName'] . '.*, ';
$joins .= ' JOIN ' . $v['tableName'] . ' ON ' . $v['foreignKey'] . ' = ' . $v['references'];
}
}
}
$select .= ' ' . $tbl . '.* FROM ' . $tbl;
if (! empty($id)) {
// getting and setting in where primary id
$pid = self::getPrimeryKey($tbl);
$where = ' WHERE ' . $tbl . '.' . $pid . '=' . $id;
}
$returnSql .= $select . $joins . $where . ';';
return array('sql'=>$returnSql,'tables'=>$relatedTables) ;
}
public static function load($tbl, $id = '')
{
if (self::$recursive==2) {
return self::getRelatedDataEach($tbl, $id);
}
$pid = self::getPrimeryKey($tbl);
try {
if (! empty($id)) {
$id = self::escapeTags($id);
$sql = 'SELECT * FROM ' . $tbl . ' WHERE ' . $pid . '=' . $id;
} else
$sql = 'SELECT * FROM ' . $tbl . ' WHERE 1';
if (self::$debugConfig)
self::dx($sql);
// recursive query
if (self::$recursive==1) {
$response = self::getRelatedDataQuery($tbl, $id);
$sql = $response['sql'];
}
$stmt = self::$conn->prepare($sql);
$stmt->execute();
// set the resulting array to associative
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);
if (self::$recursive==2) {
/*
foreach($response['tables'] as $i=>$r) {
$getFieldNames = "SELECT `COLUMN_NAME` FROM `INFORMATION_SCHEMA`.`COLUMNS` WHERE `TABLE_SCHEMA`='".$i."' AND `TABLE_NAME`='".str_replace($i.'.', '', $r)."'";
echo $getFieldNames;
debug(self::getAll($getFieldNames));
}
*/
return $result;
} else {
return $result;
}
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . "</hr>" . $e->getMessage();
}
}
public static function setRecursive($r = 0)
{
self::$recursive = $r;
}
public static function manage($tbl, $c = 0)
{
self::flush();
self::$tbl = $tbl;
if ($c)
self::setTable();
$sql = 'DESCRIBE ' . $tbl;
try {
$stmt = self::$conn->prepare($sql);
$stmt->execute();
// set the resulting array to associative
$result = $stmt->fetchAll(PDO::FETCH_COLUMN);
foreach ($result as $v)
$obj[$v] = $v;
$obj = (object) $obj;
return $obj;
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . "</hr>" . $e->getMessage();
}
}
/*
* alternate of mysql_real_escape_string
* */
public static function escapeStr($value)
{
$search = array("\\", "\x00", "\n", "\r", "'", '"', "\x1a");
$replace = array("\\\\","\\0","\\n", "\\r", "\'", '\"', "\\Z");
return str_replace($search, $replace, $value);
}
public static function escapeTags($str)
{
return self::escapeStr( $str );
}
public static function emptyX($tbl = '')
{
if (empty($tbl))
return 0;
$sql = 'TRUNCATE ' . $tbl;
try {
// use exec() because no results are returned
return self::$conn->exec($sql);
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . "</hr>" . $e->getMessage();
}
}
public static function drop($tbl = '')
{
if (empty($tbl))
return 0;
$sql = 'DROP TABLE ' . $tbl;
try {
// use exec() because no results are returned
return self::$conn->exec($sql);
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . "</hr>" . $e->getMessage();
}
}
public static function select($fieldsStr)
{
if (! empty($fieldsStr)) {
self::$selectStr .= ' SELECT ' . $fieldsStr . ' FROM ' . self::$tbl;
}
return self::getResults();
}
public static function orderBy($key = '', $otype = 'DESC')
{
if (! empty($key)) {
self::$orderByStr .= ' ORDER BY ' . $key . ' ' . $otype;
}
return self::getResults();
}
public static function groupBy($key = '')
{
if (! empty($key)) {
self::$groupByStr .= ' GROUP BY ' . $key;
}
return self::getResults();
}
public static function limit($start = 0, $end = 0)
{
if (! empty($end)) {
self::$limitStr .= ' LIMIT ' . $start . ' , ' . $end;
} else
self::$limitStr .= ' LIMIT ' . $start;
return self::getResults();
}
public static function where($key = '', $op = '', $val = '')
{
if (! empty($val)) {
$val = self::escapeTags($val);
self::$whereStr .= ' AND ';
if (is_numeric($val))
self::$whereStr .= $key . ' ' . $op . ' ' . $val . ' ';
else
self::$whereStr .= $key . ' ' . $op . ' \'' . $val . '\' ';
}
if (empty($val) && ! empty($op) && ! empty($key)) {
$op = self::escapeTags($op);
$key = self::escapeTags($key);
self::$whereStr .= ' AND ';
if (is_numeric($op))
self::$whereStr .= $key . ' = ' . $op . ' ';
else
self::$whereStr .= $key . ' = \'' . $op . '\' ';
}
return self::getResults();
}
public static function whereOr($key = '', $op = '', $val = '')
{
if (! empty($val)) {
$val = self::escapeTags($val);
self::$whereStr .= ' OR ';
if (is_numeric($val))
self::$whereStr .= $key . ' ' . $op . ' ' . $val . ' ';
else
self::$whereStr .= $key . ' ' . $op . ' \'' . $val . '\' ';
}
if (empty($val) && ! empty($op) && ! empty($key)) {
$op = self::escapeTags($op);
$key = self::escapeTags($key);
self::$whereStr .= ' OR ';
if (is_numeric($op))
self::$whereStr .= $key . ' = ' . $op . ' ';
else
self::$whereStr .= $key . ' = \'' . $op . '\' ';
}
return self::getResults();
}
public static function getResults()
{
try {
if (empty(self::$selectStr))
$sql = 'SELECT * FROM ' . self::$tbl . ' WHERE ' . self::getPrimeryKey(self::$tbl);
else
$sql = self::$selectStr . ' WHERE ' . self::getPrimeryKey(self::$tbl);
$sql .= ' ' . self::$whereStr;
$sql .= ' ' . self::$groupByStr;
$sql .= ' ' . self::$orderByStr;
$sql .= ' ' . self::$limitStr;
if (self::$debugConfig)
self::dx($sql);
$stmt = self::$conn->prepare($sql);
$stmt->execute();
// set the resulting array to associative
$result = $stmt->fetchAll(PDO::FETCH_ASSOC);
return $result;
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . '<hr>' . $e->getMessage() . '<hr>';
}
}
public static function paginateByArray($length = 10, $current_page = 0, $data = '')
{
try {
if (empty($data))
$data = self::getResults();
$result = array();
$start = 0;
if ($current_page >= 1)
$start = $length * $current_page;
if (! empty($data)) {
$total_items = count($data);
if ($total_items > $length)
$total_pages = $total_items / $length;
else
$total_pages = 1;
$previous_link = '';
if ($total_items > $length) {
$next_link = 'page=' . ($current_page + 1);
if ($current_page > 1)
$previous_link = 'page=' . ($current_page - 1);
} else {
$next_link = '';
$previous_link = '';
}
$result['pagination']['total_items'] = $total_items;
$result['pagination']['total_pages'] = $total_pages;
$result['pagination']['current_page'] = $current_page;
$result['pagination']['length'] = $length;
$result['pagination']['previous_link'] = $previous_link;
$result['pagination']['next_link'] = $next_link;
$result['pagination']['start'] = $start;
$result['items'] = array_slice($data, $start, $length);
}
return $result;
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . '<hr>' . $e->getMessage() . '<hr>';
}
}
public static function paginate($length = 10, $current_page = 0)
{
try {
$total_items = self::getAll('select count(*) as total from ' . self::$tbl);
$total_items = $total_items[0]['total'];
$result = array();
$start = 0;
$end = $length;
if ($current_page > 1) {
$start = ($length * $current_page) - $length;
// $end = ($length * $current_page)+$length;
}
self::limit($start, $length);
$data = self::getResults();
if (! empty($total_items)) {
if ($total_items > $length)
$total_pages = $total_items / $length;
else
$total_pages = 1;
$previous_link = '';
if ($total_items > $length) {
$next_link = 'page=' . ($current_page + 1);
if ($current_page > 1)
$previous_link = 'page=' . ($current_page - 1);
} else {
$next_link = '';
$previous_link = '';
}
$result['pagination']['total_items'] = $total_items;
$result['pagination']['total_pages'] = intval($total_pages);
$result['pagination']['current_page'] = $current_page;
$result['pagination']['length'] = $length;
$result['pagination']['previous_link'] = $previous_link;
$result['pagination']['next_link'] = $next_link;
$result['pagination']['start'] = $start;
$result['items'] = $data;
}
return $result;
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . '<hr>' . $e->getMessage() . '<hr>';
}
}
public static function setTable($arr = '')
{
if (self::$conn->query('SHOW TABLES LIKE \'' . self::$tbl . '\'')->rowCount() > 0) {
$sql = '';
} else {
$sql = 'CREATE TABLE ' . self::$tbl . ' ( ';
$sql .= 'id INT(11) UNSIGNED AUTO_INCREMENT PRIMARY KEY ';
$i = 1;
if (! empty($arr)) {
foreach ($arr as $k => $v) {
if (count($arr) != $i)
$sql .= $k . ' VARCHAR(255) NULL, ';
else
$sql .= $k . ' VARCHAR(255) NULL ';
$i ++;
}
}
$sql .= ');';
// return $sql;
try {
// use exec() because no results are returned
self::$conn->exec($sql);
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . "</hr>" . $e->getMessage();
}
}
}
public static function save($arr)
{
self::setTable($arr);
$pid = self::getPrimeryKey(self::$tbl);
if (! isset($arr[$pid]))
$sql = self::arrayToSql($arr);
else {
$result = self::load(self::$tbl, $arr[$pid]);
if ($result)
$sql = self::arrayToSql($arr, 2);
else
$sql = self::arrayToSql($arr);
}
try {
if (self::$debugConfig)
self::dx($sql);
self::$conn->exec($sql);
return self::$conn->lastInsertId();
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . "</hr>" . $e->getMessage();
}
}
public static function exec($sql)
{
try {
return self::$conn->exec($sql);
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . "</hr>" . $e->getMessage();
}
/* */
}
public static function update($arr, $keyVal)
{
/*
* echo self::setTable($arr);
*
* if(!isset($arr['id']))
* return false;
*
* $sql = self::arrayToSql($arr,2);
* // echo $sql;
*
* try{
* //self::$conn->exec($sql);
* }
* catch(PDOException $e)
* {
* echo $sql . "</hr>" . $e->getMessage();
* }
*/
}
public static function delete($tbl, $id)
{
$pid = self::getPrimeryKey($tbl);
$sql = 'DELETE FROM ' . $tbl . ' WHERE ' . $pid . '=' . $id;
try {
self::$conn->exec($sql);
} catch (PDOException $e) {
echo '<br><span style="color:red;">Line #' . __LINE__ . ' (/X.php) </span> ' . $sql . "</hr>" . $e->getMessage();
}
}
public static function arrayToSql($arr = '', $type = 1)
{
if (empty($arr))
return '';
$sql = $keys = $values = '';
$i = 1;
if ($type == 1) {
$sql = 'INSERT INTO ' . self::$tbl . ' (';
foreach ($arr as $k => $v) {
if (count($arr) != $i) {
$keys .= $k . ', ';
$values .= '\'' . self::escapeTags($v) . '\', ';
} else {
$keys .= $k . ')';
$values .= '\'' . self::escapeTags($v) . '\')';
}
$i ++;
}
$sql .= $keys . ' VALUES (' . $values . ';';
}
if ($type == 2) {
// UPDATE `myguests` SET `firstname` = 'fa', `lastname` = 'na' WHERE `myguests`.`id` = 1;
$pid = self::getPrimeryKey(self::$tbl);
$sql = 'UPDATE ' . self::$tbl . ' SET ';
foreach ($arr as $k => $v) {
if (count($arr) != $i) {
$sql .= $k . '= ';
$sql .= '\'' . self::escapeTags($v) . '\', ';
} else {
$sql .= $k . '= ';
$sql .= '\'' . self::escapeTags($v) . '\' ';
}
$i ++;
}
$sql .= ' WHERE ' . $pid . '=' . $arr[$pid];
}
if ($type == 3) {}
return $sql;
}
}