php簡單操作mysql數據庫的類

 具體如下：

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 <?php /** * Database class * * @version: 2.2 * @revised: 27 may 2007 * **/ class Database { var $host; var $name; var $user; var $pass; var $prefix; var $linkId; function Database($mysql) { foreach($mysql as $k => $v){ $this->$k = $v; } if(strlen($this->prefix)>0 && substr($this->prefix, -1) !== "_") $prefix .= "_"; $this->prefix = $prefix; } function getLastID() { $id = mysql_fetch_row(mysql_query("SELECT LAST_INSERT_ID()", $this->linkId)); return $id[0]; } function getPossibleValues($tableA, $whereA) { if(gettype($tableA) == "array") { $table = ""; foreach($tableA as $t) { $table .= $this->prefix.$t.", "; } $table = substr($table, 0, -2); } else $table = $this->prefix.$tableA; if(gettype($whereA) != "array") { $whereA = array($whereA); } $return = array(); foreach($whereA as $where) { $sql = mysql_query("SHOW COLUMNS FROM ".$table." LIKE '%".$where."%'"); while($arr = mysql_fetch_array($sql)) { if(strpos($arr['Type'], 'enum')===0) { $vals = substr($arr['Type'], 5, -1); } else { $vals = substr($arr['Type'], 4, -1); } $vals = str_replace("'","",$vals); $vals = explode(",",$vals); $i = 1; foreach($vals as $val) { $return[$arr['Field']][$i++] = $val; } $return[$arr['Field']]['default'] = $arr['Default']; if($arr['Null'] != "NO") $return[$arr['Field']][0] = NULL; } } return $return; } function connect() { $this->linkId = mysql_connect($this->host, $this->user, $this->pass); if(!$this->linkId) { return false; } if(mysql_select_db($this->name, $this->linkId)) return true; mysql_close($this->linkId); return false; } function runSelect($tables, $where = "1", $fieldsA = "*", $order = false, $limit = false, $offset = false, $group = false) { if(gettype($tables) == "array") { $table = ""; foreach($tables as $t) { $table .= $this->prefix.$t.", "; } $table = substr($table, 0, -2); } else $table = $this->prefix.$tables; if(gettype($fieldsA) == "array") { $fields = ""; $keys = array_keys($fieldsA); if($keys[0] != '0') { foreach($keys as $key) { $fields .= $key.' AS '.$fieldsA[$key].', '; } } else { foreach($fieldsA as $field) { $fields .= $field.', '; } } $fields = substr($fields, 0, -2); } else $fields = $fieldsA; $query = "SELECT ".$fields." FROM ".$table." WHERE ".$where. ($order!== false?" ORDER BY ".$order:($group!==false ? " GROUP BY ".$group : "")). ($limit !== false?" LIMIT ".$limit:""). ($offset !== false?" OFFSET ".$offset:""); return mysql_query($query, $this->linkId); } function runUpdate($table, $valuesA, $where = "1") { if(gettype($valuesA) == "array") { $fields = ""; $values = ""; $keys = array_keys($valuesA); foreach($keys as $key) { if($valuesA[$key] !== NULL) $values .= "`".$key."`='".str_replace("'",''', $valuesA[$key])."',"; else $values .= $key."=NULL,"; } $fields = substr($fields, 0, -1); $values = substr($values, 0, -1); } else $values = $valuesA; $query = "UPDATE ".$this->prefix.$table." SET ".$values." WHERE ".$where; if(mysql_query($query, $this->linkId)) return mysql_affected_rows($this->linkId); return false; } function runDelete($table, $where = "1") { if(mysql_query("DELETE FROM ".$this->prefi