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PHP PDO database CRUD class
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<?php | |
class Database extends PDO | |
{ | |
public function __construct($DB_TYPE, $DB_HOST, $DB_NAME, $DB_USER, $DB_PASS) | |
{ | |
parent::__construct($DB_TYPE.':host='.$DB_HOST.';dbname='.$DB_NAME, $DB_USER, $DB_PASS); | |
} | |
public function select($sql, $array = array(), $fetchMode = PDO::FETCH_ASSOC) | |
{ | |
$sth = $this->prepare($sql); | |
foreach ($array as $key => $value) { | |
$sth->bindValue("$key", $value); | |
} | |
if(!$sth->execute()){ | |
$this->handleError(); | |
} | |
else{ | |
return $sth->fetchAll($fetchMode); | |
} | |
} | |
public function insert($table, $data) | |
{ | |
ksort($data); | |
$fieldNames = implode('`, `', array_keys($data)); | |
$fieldValues = ':' . implode(', :', array_keys($data)); | |
$sth = $this->prepare("INSERT INTO $table (`$fieldNames`) VALUES ($fieldValues)"); | |
foreach ($data as $key => $value) { | |
$sth->bindValue(":$key", $value); | |
} | |
if(!$sth->execute()){ | |
$this->handleError(); | |
//print_r($sth->errorInfo()); | |
} | |
} | |
public function update($table, $data, $where) | |
{ | |
ksort($data); | |
$fieldDetails = NULL; | |
foreach($data as $key=> $value) { | |
$fieldDetails .= "`$key`=:$key,"; | |
} | |
$fieldDetails = rtrim($fieldDetails, ','); | |
$sth = $this->prepare("UPDATE $table SET $fieldDetails WHERE $where"); | |
foreach ($data as $key => $value) { | |
$sth->bindValue(":$key", $value); | |
} | |
$sth->execute(); | |
} | |
public function delete($table, $where, $limit = 1) | |
{ | |
return $this->exec("DELETE FROM $table WHERE $where LIMIT $limit"); | |
} | |
/* count rows*/ | |
public function rowsCount($table){ | |
$sth = $this->prepare("SELECT * FROM ".$table); | |
$sth->execute(); | |
return $sth -> rowCount(); | |
} | |
/* error check */ | |
private function handleError() | |
{ | |
if ($this->errorCode() != '00000') | |
{ | |
if ($this->_errorLog == true) | |
//Log::write($this->_errorLog, "Error: " . implode(',', $this->errorInfo())); | |
echo json_encode($this->errorInfo()); | |
throw new Exception("Error: " . implode(',', $this->errorInfo())); | |
} | |
} | |
} |
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define('DB_TYPE', 'mysql'); | |
define('DB_HOST', '127.0.0.1'); | |
define('DB_NAME', 'my_db'); | |
define('DB_USER', 'root'); | |
define('DB_PASS', 'password'); | |
$this->db = new Database(DB_TYPE, DB_HOST, DB_NAME, DB_USER, DB_PASS); | |
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