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First (re-)commit
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Xkeeper
206
lib/mysql.php
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206
lib/mysql.php
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<?php
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class mysql {
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// a 'backport' of my 'static' class in not-as-static form
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// the statistics remain static so they're global just in case this gets used for >1 connection
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static $queries = 0;
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static $cachehits = 0;
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static $rowsf = 0;
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static $rowst = 0;
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static $time = 0;
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// Query debugging functions for admins
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static $connection_count = 0;
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static $debug_on = false;
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static $debug_list = array();
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var $cache = array();
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var $connection = NULL;
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var $id = 0;
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public function connect($host,$user,$pass,$persist=false) {
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$start=microtime(true);
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$this->connection = (($persist) ? mysql_pconnect($host,$user,$pass) : mysql_connect($host,$user,$pass));
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$t = microtime(true)-$start;
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$this->id = ++self::$connection_count;
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if (self::$debug_on) {
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$b = self::getbacktrace();
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self::$debug_list[] = array($this->id, $b['pfunc'], "$b[file]:$b[line]", "<i>".(($persist)?"Persistent c":"C")."onnection established to mySQL server ($host, $user, using password: ".(($pass!=="") ? "YES" : "NO").")</i>", sprintf("%01.6fs",$t));
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}
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self::$time += $t;
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return $this->connection;
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}
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public function selectdb($dbname) {
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$start=microtime(true);
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$r = mysql_select_db($dbname, $this->connection);
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self::$time += microtime(true)-$start;
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return $r;
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}
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public function query($query, $usecache = false) {
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if ($usecache && array_key_exists($hash = md5($query), $this->cache)) {
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$start=microtime(true);
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++self::$cachehits;
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@mysql_data_seek($this->cache[$hash], 0);
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$t = microtime(true)-$start;
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if (self::$debug_on) {
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$b = self::getbacktrace();
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self::$debug_list[] = array($this->id, $b['pfunc'], "$b[file]:$b[line]", "<font color=#00dd00>$query</font>", "<font color=#00dd00>".sprintf("%01.6fs",$t)."</font>");
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}
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return $this->cache[$hash];
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}
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$start=microtime(true);
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if($res = mysql_query($query, $this->connection)) {
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++self::$queries;
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if (!is_bool($res))
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self::$rowst += @mysql_num_rows($res);
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if ($usecache) {
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$this->cache[md5($query)] = &$res;
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}
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}
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else {
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// the huge SQL warning text sucks
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$err = str_replace("You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use", "SQL syntax error", mysql_error());
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trigger_error("MySQL error: $err", E_USER_ERROR);
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}
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$t = microtime(true)-$start;
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self::$time += $t;
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if (self::$debug_on) {
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$b = self::getbacktrace();
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$tx = ((!$err) ? $query : "<span style=\"color:#FF0000;border-bottom:1px dotted red;\" title=\"$err\">$query</span>");
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self::$debug_list[] = array($this->id, $b['pfunc'], "$b[file]:$b[line]", $tx, sprintf("%01.6fs",$t));
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}
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return $res;
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}
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public function fetch($result, $flag = MYSQL_BOTH){
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$start=microtime(true);
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if($result && $res=mysql_fetch_array($result, $flag))
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++self::$rowsf;
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self::$time += microtime(true)-$start;
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return $res;
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}
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public function result($result,$row=0,$col=0){
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$start=microtime(true);
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if($result) {
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if (mysql_num_rows($result) < $row+1)
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$res = NULL;
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elseif ($res=@mysql_result($result,$row,$col))
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++self::$rowsf;
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}
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self::$time += microtime(true)-$start;
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return $res;
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}
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public function fetchq($query, $flag = MYSQL_BOTH, $cache = false){
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$res = $this->query($query, $cache);
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$res = $this->fetch($res, $flag);
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return $res;
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}
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public function resultq($query,$row=0,$col=0, $cache = false){
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$res = $this->query($query, $cache);
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$res = $this->result($res,$row,$col);
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return $res;
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}
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public function getmultiresults($query, $key, $wanted, $cache = false) {
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$q = $this->query($query, $cache);
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$ret = array();
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$tmp = array();
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while ($res = @$this->fetch($q, MYSQL_ASSOC))
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$tmp[$res[$key]][] = $res[$wanted];
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foreach ($tmp as $keys => $values)
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$ret[$keys] = implode(",", $values);
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return $ret;
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}
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public function getresultsbykey($query, $key, $wanted, $cache = false) {
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$q = $this->query($query, $cache);
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$ret = array();
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while ($res = @$this->fetch($q, MYSQL_ASSOC))
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$ret[$res[$key]] = $res[$wanted];
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return $ret;
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}
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public function getresults($query, $wanted, $cache = false) {
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$q = $this->query($query, $cache);
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$ret = array();
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while ($res = @$this->fetch($q, MYSQL_ASSOC))
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$ret[] = $res[$wanted];
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return $ret;
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}
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public function getarraybykey($query, $key, $cache = false) {
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$q = $this->query($query, $cache);
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$ret = array();
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while ($res = @$this->fetch($q, MYSQL_ASSOC))
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$ret[$res[$key]] = $res;
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return $ret;
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}
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public function getarray($query, $cache = false) {
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$q = $this->query($query, $cache);
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$ret = array();
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while ($res = @$this->fetch($q, MYSQL_ASSOC))
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$ret[] = $res;
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return $ret;
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}
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//private function __construct() {}
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// Debugging shit for admins
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public static function debugprinter() {
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global $tccellh, $tccellc, $tccell1, $tccell2, $tblstart, $smallfont, $tblend;
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if (!self::$debug_on) return "";
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$out = "";
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$out .= "<br>$tblstart<tr>$tccellh colspan=5><b>SQL Debug</b></td><tr>
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$tccellh width=20> </td>
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$tccellh width=20>ID</td>
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$tccellh width=300>Function</td>
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$tccellh width=*>Query</td>
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$tccellh width=90>Time</td></tr>";
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foreach(self::$debug_list as $i => $d) {
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$altcell = "tccell" . (($i & 1)+1);
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$cell = $$altcell;
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if ($oldid && $oldid != $d[0])
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$out .= "<tr>$tccellc colspan=5><img src='images/_.gif' height='4' width='1'></td></tr>";
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$oldid = $d[0];
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$out .= "<tr>
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$cell>$i</td>
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$cell>$d[0]</td>
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$cell>$d[1]$smallfont<br>$d[2]</font></td>
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$cell style='white-space: pre-wrap; text-align: left'>$d[3]</td>
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$cell>$d[4]</td></tr>";
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}
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$out .= "$tblend";
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return $out;
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}
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private static function getbacktrace() {
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$backtrace = debug_backtrace();
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for ($i = 1; isset($backtrace[$i]); ++$i) {
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if (substr($backtrace[$i]['file'], -9) !== "mysql.php") {
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if (!($backtrace[$i]['pfunc'] = $backtrace[$i+1]['function']))
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$backtrace[$i]['pfunc'] = "<i>(main)</i>";
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$backtrace[$i]['file'] = str_replace($_SERVER['DOCUMENT_ROOT'], "", $backtrace[$i]['file']);
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return $backtrace[$i];
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}
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}
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return $backtrace[$i-1];
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}
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}
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?>
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