database class php
Updated the database class
Usage:
1 2 3 4 5 6 | // min instantiation $dataBase = new DB('hostname','username','password','database'); // max instantiation $dataBase = new DB('hostname','username','password','database',DEBUG_LEVEL,array('admin@domain.com','admin@domain2.com)); |
Class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 | class DB{ /* * DESCRIPTION: Object class, Handles all database requests and returns content accordingly * WRITER: Adrian Callaghan 12,08,08 * UPDATED: Adrian Callaghan 08,08,11 * * * errLvl * (0), none, * (1) show a user error, * (2) (1) + mysql error * (3) (2) + show a full error (mysql errors), * (4) (3) + plus debugging */ private $host, $usr, $pwd, $errLvl, $mySqlHost, $dataBase, $emailAddresses; public function __construct($host, $usr, $pwd, $db, $errLvl=0, $adminEmails=array()) { /* * Sets up a new connection */ // MIN required $this->setHost($host); $this->setUsr($usr); $this->setPwd($pwd); $this->setErrLvl($errLvl); // sets defualt RTE $this->setEmailErrsTo($adminEmails); // connect $this->connect(); $this->setDb($db); } public function __destruct(){ /* * Close the connection */ $this->disconnect(); } protected function setHost($host='localhost'){ /* * Sets the hostname */ $this->host = $host; } protected function setUsr($usr=''){ /* * Sets the username */ $this->usr = $usr; } protected function setPwd($pwd=''){ /* * Sets the password */ $this->pwd = $pwd; } protected function setErrLvl($errLvl=0){ /* * Sets the error reporting level */ $this->errLvl = $errLvl; } protected function connect(){ /* * Connect to server */ $this->mySqlHost = @mysql_connect($this->host, $this->usr, $this->pwd); if (!$this->mySqlHost) { $this->error('Cannot connect to server',mysql_error()); } } protected function disconnect() { /* * closes current connection */ @mysql_close($this->mySqlHost); } public function setDb($db){ /* * Set the database */ $this->dataBase = @mysql_select_db($db,$this->mySqlHost); if (!$this->dataBase) { $this->error('Cannot select database',mysql_error()); } } public function setEmailErrsTo($email = array()){ // ensure it is an array $email = !is_array($email) ? array($email) : $email; // if empty return if (empty($email)){ return; } // assign the email addresses $this->emailAddresses = $email; } function getQuery($SQL){ // executes a query $result = @mysql_query($SQL); if (!$result) { $this->error('Invalid query',mysql_error(),$SQL); } // create a 2D array of results $return = array(); while ($row = mysql_fetch_assoc($result)) $return[] = $row; return $return; } function setQuery($SQL){ // executes a query without returning any results, used for insert, create etc, returns the ID of the last auto-increment $result = @mysql_query($SQL); if (!$result) { $this->error('Invalid query',mysql_error(),$SQL); } $return = mysql_insert_id(); return $return; } public function error($message, $mysqlErr='', $SQL=''){ /* * Handles errors * */ switch ($this->errLvl){ case 0: break; case 1: $mysqlErr=''; // kill the mysql output case 2: $SQL=''; // kill the sql output case 3: case 4: echo "<h1 style='color:#444444;'>$message</h1><hr>"; if ($mysqlErr!=='') { echo "<p><span style='color:#ff0000; font-weight:bold;'>Mysql: </span>$mysqlErr</p>"; } if ($SQL!=='') { echo "<p><span style='color:#ff0000; font-weight:bold;'>Whole query: </span>$SQL</p>"; } } $email = $this->generateEmail(array('Error'=>$message,'Mysql'=>$mysqlErr,'Sql'=>$SQL,'Err Level'=>$this->errLvl)); // three is for debugging if ($this->errLvl>3){ echo $email; } if (!empty($this->emailAddresses)){ $sent = $this->sendEmails($email); if ($sent) echo '<h2>The administrator has been notified</h2>'; else { echo '<h2>Please notify the administrator'; echo count($this->emailAddresses)>1 ? "'s " : " "; echo implode(' or ',$this->emailAddresses); echo '</h2>'; } } exit(); } private function generateEmail($err=array()){ $fields = array( 'Server name'=>$_SERVER['SERVER_NAME'], 'Query'=>$_SERVER['SCRIPT_FILENAME'].'?'.$_SERVER['QUERY_STRING'], 'Ip'=>$_SERVER['REMOTE_ADDR'].':'.$_SERVER['REMOTE_PORT'], '@'=>date("D dS M,Y h:i a") ); $rtn = '<table bgcolor="#cccccc">'; foreach (array_merge($fields, $err) AS $title=>$value){ $rtn.="<tr><td bgcolor='#aaaaaa'>$title</td><td bgcolor='#bbbbbb'>$value</td></tr>"; } return $rtn.'</table>'; } public function sendEmails($reciptents=array()){ // email message $Name = $_SERVER['SERVER_NAME']; //senders name $email = "noreply@".$_SERVER['SERVER_NAME']; //senders e-mail adress $subject = $_SERVER['SERVER_NAME']." Error"; //subject $header = 'MIME-Version: 1.0' . "\r\n"; $header.= 'Content-type: text/html; charset=iso-8859-1' . "\r\n"; $header.= "From: ". $Name . " <" . $email . ">\r\n"; $success=false; foreach ($this->emailAddresses AS $admin_email){ $sent = @mail($admin_email, $subject, $mail_body, $header); if ($sent) $success=true; // holds state for any email being succesfully sent } return $success; } } |
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This entry was posted on Monday, August 8th, 2011 at 6:05 pm and is filed under Php, Programming. You can follow any responses to this entry through the RSS 2.0 feed.