db.php

   1 <?php
   2
   3 require_once "config.php";
   4
   5 function db_connect($host, $user, $pass, $db) {
   6         if (DB_TYPE == "pgsql") {
   7
   8                 $string = "dbname=$db user=$user password=$pass";
   9
  10                 if ($host) {
  11                         $string .= " host=$host";
  12                 }
  13
  14                 if (defined('DB_PORT')) {
  15                         $string = "$string port=" . DB_PORT;
  16                 }
  17
  18                 $link = pg_connect($string);
  19
  20                 if (!$link) {
  21                         die("Connection failed: " . pg_last_error($link));
  22                 }
  23
  24                 return $link;
  25
  26         } else if (DB_TYPE == "mysql") {
  27                 $link = mysql_connect($host, $user, $pass);
  28                 if ($link) {
  29                         $result = mysql_select_db($db, $link);
  30                         if (!$result) {
  31                                 die("Can't select DB: " . mysql_error($link));
  32                         }
  33                         return $link;
  34                 } else {
  35                         die("Connection failed: " . mysql_error($link));
  36                 }
  37         }
  38 }
  39
  40 function db_escape_string($s) {
  41         if (DB_TYPE == "pgsql") {
  42                 return pg_escape_string($s);
  43         } else {
  44                 return mysql_real_escape_string($s);
  45         }
  46 }
  47
  48 function db_query($link, $query, $die_on_error = true) {
  49         if (DB_TYPE == "pgsql") {
  50                 $result = pg_query($link, $query);
  51                 if (!$result) {
  52                         $query = htmlspecialchars($query); // just in case
  53                         if ($die_on_error) {
  54                                 die("Query <i>$query</i> failed [$result]: " . pg_last_error($link));
  55                         }
  56                 }
  57                 return $result;
  58         } else if (DB_TYPE == "mysql") {
  59                 $result = mysql_query($query, $link);
  60                 if (!$result) {
  61                         $query = htmlspecialchars($query);
  62                         if ($die_on_error) {
  63                                 die("Query <i>$query</i> failed: " . mysql_error($link));
  64                         }
  65                 }
  66                 return $result;
  67         }
  68 }
  69
  70 function db_fetch_assoc($result) {
  71         if (DB_TYPE == "pgsql") {
  72                 return pg_fetch_assoc($result);
  73         } else if (DB_TYPE == "mysql") {
  74                 return mysql_fetch_assoc($result);
  75         }
  76 }
  77
  78
  79 function db_num_rows($result) {
  80         if (DB_TYPE == "pgsql") {
  81                 return pg_num_rows($result);
  82         } else if (DB_TYPE == "mysql") {
  83                 return mysql_num_rows($result);
  84         }
  85 }
  86
  87 function db_fetch_result($result, $row, $param) {
  88         if (DB_TYPE == "pgsql") {
  89                 return pg_fetch_result($result, $row, $param);
  90         } else if (DB_TYPE == "mysql") {
  91                 // I hate incoherent naming of PHP functions
  92                 return mysql_result($result, $row, $param);
  93         }
  94 }
  95
  96 function db_unescape_string($str) {
  97         $tmp = str_replace("\\\"", "\"", $str);
  98         $tmp = str_replace("\\'", "'", $tmp);
  99         return $tmp;
 100 }
 101
 102 function db_close($link) {
 103         if (DB_TYPE == "pgsql") {
 104
 105                 return pg_close($link);
 106
 107         } else if (DB_TYPE == "mysql") {
 108                 return mysql_close($link);
 109         }
 110 }
 111
 112 function db_affected_rows($link, $result) {
 113         if (DB_TYPE == "pgsql") {
 114                 return pg_affected_rows($result);
 115         } else if (DB_TYPE == "mysql") {
 116                 return mysql_affected_rows($link);
 117         }
 118 }
 119
 120 function db_last_error($link) {
 121         if (DB_TYPE == "pgsql") {
 122                 return pg_last_error($link);
 123         } else if (DB_TYPE == "mysql") {
 124                 return mysql_error($link);
 125         }
 126 }
 127
 128 ?>