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=$user";
   9
  10                 if ($pass) {
  11                         $string .= " password=$pass";
  12                 }
  13
  14                 if ($host) {
  15                         $string .= " host=$host";
  16                 }
  17
  18                 if (defined('DB_PORT')) {
  19                         $string = "$string port=" . DB_PORT;
  20                 }
  21
  22                 $link = pg_connect($string);
  23
  24                 if (!$link) {
  25                         die("Connection failed: " . pg_last_error($link));
  26                 }
  27
  28                 return $link;
  29
  30         } else if (DB_TYPE == "mysql") {
  31                 $link = mysql_connect($host, $user, $pass);
  32                 if ($link) {
  33                         $result = mysql_select_db($db, $link);
  34                         if (!$result) {
  35                                 die("Can't select DB: " . mysql_error($link));
  36                         }
  37                         return $link;
  38                 } else {
  39                         die("Connection failed: " . mysql_error($link));
  40                 }
  41         }
  42 }
  43
  44 function db_escape_string($s) {
  45         if (DB_TYPE == "pgsql") {
  46                 return pg_escape_string($s);
  47         } else {
  48                 return mysql_real_escape_string($s);
  49         }
  50 }
  51
  52 function db_query($link, $query, $die_on_error = true) {
  53         if (DB_TYPE == "pgsql") {
  54                 $result = pg_query($link, $query);
  55                 if (!$result) {
  56                         $query = htmlspecialchars($query); // just in case
  57                         if ($die_on_error) {
  58                                 die("Query <i>$query</i> failed [$result]: " . pg_last_error($link));
  59                         }
  60                 }
  61                 return $result;
  62         } else if (DB_TYPE == "mysql") {
  63                 $result = mysql_query($query, $link);
  64                 if (!$result) {
  65                         $query = htmlspecialchars($query);
  66                         if ($die_on_error) {
  67                                 die("Query <i>$query</i> failed: " . mysql_error($link));
  68                         }
  69                 }
  70                 return $result;
  71         }
  72 }
  73
  74 function db_fetch_assoc($result) {
  75         if (DB_TYPE == "pgsql") {
  76                 return pg_fetch_assoc($result);
  77         } else if (DB_TYPE == "mysql") {
  78                 return mysql_fetch_assoc($result);
  79         }
  80 }
  81
  82
  83 function db_num_rows($result) {
  84         if (DB_TYPE == "pgsql") {
  85                 return pg_num_rows($result);
  86         } else if (DB_TYPE == "mysql") {
  87                 return mysql_num_rows($result);
  88         }
  89 }
  90
  91 function db_fetch_result($result, $row, $param) {
  92         if (DB_TYPE == "pgsql") {
  93                 return pg_fetch_result($result, $row, $param);
  94         } else if (DB_TYPE == "mysql") {
  95                 // I hate incoherent naming of PHP functions
  96                 return mysql_result($result, $row, $param);
  97         }
  98 }
  99
 100 function db_unescape_string($str) {
 101         $tmp = str_replace("\\\"", "\"", $str);
 102         $tmp = str_replace("\\'", "'", $tmp);
 103         return $tmp;
 104 }
 105
 106 function db_close($link) {
 107         if (DB_TYPE == "pgsql") {
 108
 109                 return pg_close($link);
 110
 111         } else if (DB_TYPE == "mysql") {
 112                 return mysql_close($link);
 113         }
 114 }
 115
 116 function db_affected_rows($link, $result) {
 117         if (DB_TYPE == "pgsql") {
 118                 return pg_affected_rows($result);
 119         } else if (DB_TYPE == "mysql") {
 120                 return mysql_affected_rows($link);
 121         }
 122 }
 123
 124 function db_last_error($link) {
 125         if (DB_TYPE == "pgsql") {
 126                 return pg_last_error($link);
 127         } else if (DB_TYPE == "mysql") {
 128                 return mysql_error($link);
 129         }
 130 }
 131
 132 ?>