ProQuiz V2.0.0 Beta Release

This is the first release of ProQuiz V2.0.0.

Database.class.php

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+<?php
+/*!
+ * **************************************************************
+ ****************  ProQuiz V2.0.0b ******************************
+ ***************************************************************/
+ /* documentation at: http://proquiz.softon.org/documentation/
+ /* Designed & Maintained by
+ /*                                    - Softon Technologies
+ /* Developer
+ /*                                    - Manzovi
+ /* For Support Contact @
+ /*                                    - proquiz@softon.org
+ /* version 2.0.0 beta (2 Feb 2011)
+ /* Licensed under GPL license:
+ /* http://www.gnu.org/licenses/gpl.html
+ */
+?><?php
+
+class Database {
+
+
+var $server   = "localhost"; //database server
+var $user     = "root"; //database login name
+var $pass     = ""; //database login password
+var $database = "userauth"; //database name
+var $pre      = ""; //table prefix
+
+
+#######################
+//internal info
+var $error = "";
+var $errno = 0;
+
+//number of rows affected by SQL query
+var $affected_rows = 0;
+
+var $link_id = 0;
+var $query_id = 0;
+var $debug = 0;
+
+#-#############################################
+# desc: constructor
+function Database($server, $user, $pass, $database, $pre=''){
+	$this->server=$server;
+	$this->user=$user;
+	$this->pass=$pass;
+	$this->database=$database;
+	$this->pre=$pre;
+}#-#constructor()
+
+
+#-#############################################
+# desc: connect and select database using vars above
+# Param: $new_link can force connect() to open a new link, even if mysql_connect() was called before with the same parameters
+function connect($new_link=false) {
+	$this->link_id=@mysql_connect($this->server,$this->user,$this->pass,$new_link);
+
+	if (!$this->link_id) {//open failed
+		$this->oops("Could not connect to server: <b>$this->server</b>.");
+		}
+
+	if(!@mysql_select_db($this->database, $this->link_id)) {//no database
+		$this->oops("Could not open database: <b>$this->database</b>.");
+		}
+
+	// unset the data so it can't be dumped
+	$this->server='';
+	$this->user='';
+	$this->pass='';
+	$this->database='';
+}#-#connect()
+
+
+#-#############################################
+# desc: close the connection
+function close() {
+	if(!@mysql_close($this->link_id)){
+		$this->oops("Connection close failed.");
+	}
+}#-#close()
+
+
+#-#############################################
+# Desc: escapes characters to be mysql ready
+# Param: string
+# returns: string
+function escape($string) {
+	if(get_magic_quotes_runtime()) $string = stripslashes($string);
+	return @mysql_real_escape_string($string,$this->link_id);
+}#-#escape()
+
+
+#-#############################################
+# Desc: executes SQL query to an open connection
+# Param: (MySQL query) to execute
+# returns: (query_id) for fetching results etc
+function query($sql) {
+	//  Print Query For Debug
+	if ($debug==1) {
+		$this->oops("<b>MySQL Query Executed:</b> $sql");
+	}
+
+	// do query
+	$this->query_id = @mysql_query($sql, $this->link_id);
+
+	if (!$this->query_id) {
+		$this->oops("<b>MySQL Query fail:</b> $sql");
+		return 0;
+	}
+
+	$this->affected_rows = @mysql_affected_rows($this->link_id);
+
+	return $this->query_id;
+}#-#query()
+
+
+#-#############################################
+# desc: fetches and returns results one line at a time
+# param: query_id for mysql run. if none specified, last used
+# return: (array) fetched record(s)
+function fetch_array($query_id=-1) {
+	// retrieve row
+	if ($query_id!=-1) {
+		$this->query_id=$query_id;
+	}
+
+	if (isset($this->query_id)) {
+		$record = @mysql_fetch_assoc($this->query_id);
+	}else{
+		$this->oops("Invalid query_id: <b>$this->query_id</b>. Records could not be fetched.");
+	}
+
+	return $record;
+}#-#fetch_array()
+
+
+#-#############################################
+# desc: returns all the results (not one row)
+# param: (MySQL query) the query to run on server
+# returns: assoc array of ALL fetched results
+function fetch_all_array($sql) {
+	$query_id = $this->query($sql);
+	$out = array();
+
+	while ($row = $this->fetch_array($query_id)){
+		$out[] = $row;
+	}
+
+	$this->free_result($query_id);
+	return $out;
+}#-#fetch_all_array()
+
+
+#-#############################################
+# desc: frees the resultset
+# param: query_id for mysql run. if none specified, last used
+function free_result($query_id=-1) {
+	if ($query_id!=-1) {
+		$this->query_id=$query_id;
+	}
+	if($this->query_id!=0 && !@mysql_free_result($this->query_id)) {
+		$this->oops("Result ID: <b>$this->query_id</b> could not be freed.");
+	}
+}#-#free_result()
+
+
+#-#############################################
+# desc: does a query, fetches the first row only, frees resultset
+# param: (MySQL query) the query to run on server
+# returns: array of fetched results
+function query_first($query_string) {
+	$query_id = $this->query($query_string);
+	$out = $this->fetch_array($query_id);
+	$this->free_result($query_id);
+	return $out;
+}#-#query_first()
+
+
+#-#############################################
+# desc: does an update query with an array
+# param: table (no prefix), assoc array with data (doesn't need escaped), where condition
+# returns: (query_id) for fetching results etc
+function query_update($table, $data, $where='1') {
+	$q="UPDATE `".$this->pre.$table."` SET ";
+
+	foreach($data as $key=>$val) {
+		if(strtolower($val)=='null') $q.= "`$key` = NULL, ";
+		elseif(strtolower($val)=='now()') $q.= "`$key` = NOW(), ";
+        elseif(preg_match("/^increment\((\-?\d+)\)$/i",$val,$m)) $q.= "`$key` = `$key` + $m[1], "; 
+		else $q.= "`$key`='".$this->escape($val)."', ";
+	}
+
+	$q = rtrim($q, ', ') . ' WHERE '.$where.';';
+
+	return $this->query($q);
+}#-#query_update()
+
+
+#-#############################################
+# desc: does an insert query with an array
+# param: table (no prefix), assoc array with data
+# returns: id of inserted record, false if error
+function query_insert($table, $data) {
+	$q="INSERT INTO `".$this->pre.$table."` ";
+	$v=''; $n='';
+
+	foreach($data as $key=>$val) {
+		$n.="`$key`, ";
+		if(strtolower($val)=='null') $v.="NULL, ";
+		elseif(strtolower($val)=='now()') $v.="NOW(), ";
+		else $v.= "'".$this->escape($val)."', ";
+	}
+
+	$q .= "(". rtrim($n, ', ') .") VALUES (". rtrim($v, ', ') .");";
+
+	if($this->query($q)){
+		//$this->free_result();
+		return mysql_insert_id($this->link_id);
+	}
+	else return false;
+
+}#-#query_insert()
+
+
+#-#############################################
+# desc: throw an error message
+# param: [optional] any custom error to display
+function oops($msg='') {
+	if($this->link_id>0){
+		$this->error=mysql_error($this->link_id);
+		$this->errno=mysql_errno($this->link_id);
+	}
+	else{
+		$this->error=mysql_error();
+		$this->errno=mysql_errno();
+	}
+	?>
+		<table align="center" border="1" cellspacing="0" style="background:white;color:black;width:80%;">
+		<tr><th colspan=2>Database Error</th></tr>
+		<tr><td align="right" valign="top">Message:</td><td><?php echo $msg; ?></td></tr>
+		<?php if(!empty($this->error)) echo '<tr><td align="right" valign="top" nowrap>MySQL Error:</td><td>'.$this->error.'</td></tr>'; ?>
+		<tr><td align="right">Date:</td><td><?php echo date("l, F j, Y \a\\t g:i:s A"); ?></td></tr>
+		<?php if(!empty($_SERVER['REQUEST_URI'])) echo '<tr><td align="right">Script:</td><td><a href="'.$_SERVER['REQUEST_URI'].'">'.$_SERVER['REQUEST_URI'].'</a></td></tr>'; ?>
+		<?php if(!empty($_SERVER['HTTP_REFERER'])) echo '<tr><td align="right">Referer:</td><td><a href="'.$_SERVER['HTTP_REFERER'].'">'.$_SERVER['HTTP_REFERER'].'</a></td></tr>'; ?>
+		</table>
+	<?php
+}#-#oops()
+
+
+}//CLASS Database
+###################################################################################################
+
+?>