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Title : PHP CLASS for ORACLE (database connectivity)
Categories : PHP, PHP Classes, Classes and Objects, Databases, Oracle
Suraj Thapaliya
Date : Mar 08th 2007
Grade : 3 of 5 (graded 2 times)
Viewed : 15031
File : 4597.zip
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This is the database connectivity script of PHP and ORACLE all the functional work are in the single file such as query,fetch, generate ID etc so everyone who really wants or working in php + oracle may get more help from it

Please see attached file above.


class.db.php
<?php
class db_connect{
      var $sid, $connection;
      var $query;
      var $host;
      var $total_record,$rec_position;
      var $total_fields, $field_name;
      /*This function connect to the database . This function is called
      whenever object is created. */

        function db_connect(){
                $this->host="".ORCL_HOST."";
                $this->sid="(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=".ORCL_HOST.")(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=".ORCL_SERVICE_NAME.")))";
                $this->connection = ocilogon(ORCL_USER_NAME,ORCL_PASSWORD,$this->sid) or die ($this->get_error_msg($this->connection,"Problem while connecting to ".$this->sid." server..."));//username,password,sid
           }


       /*This function query at database */
       function db_query($query_str="")
       {
           $this->sql=$query_str;
           $this->rec_position=0;
          // if($query_str==""){
           //   $query_str=$this->query_stmt;
           //}
           $this->query = @ociparse($this->connection, $query_str);
           ociexecute($this->query)or die($this->get_error_msg($this->query ,"Query Error : ".$query_str));
       }

       /*This function query at database which returns TRUE if SUCCESSFUL and FALSE if UNSUCCESSFUL */
       function db_query_return($query_str="",$db=""){
           if($query_str==""){
              $query_str=$this->query_stmt;
           }
           $this->query = ociparse($this->connection, $query_str);
            if($db=="Default") {
                   return ociexecute($this->query,OCI_DEFAULT);
           } else {
                   return ociexecute($this->query);
           }
       }

    function selectBox($sql='',$selected='',$name='select',$multiple='',$size='',$parameter=NULL)
    {
        $this->db_query($sql);
        $output="<select name='$name' $multiple $size $parameter>";
        $output.="<option value=''>--Select--</option>";
        while($result=$this->db_fetch_array())
        {
            if($result[0]==trim($selected)) {
                $a="selected";   
            } else {
                $a="";
            }
            $output.="<option value=".$result[0]." $a>".$result[1]."</option>";
        }
        $output.="</select>";
        echo $output;
        unset($output);
    }
   
    function db_fetch_val()
    {
        $result=$this->db_fetch_array(0);
        return $result[0];
    }

    function gen_id($table_name='',$field='',$increment='') {
         if(empty($increment)) {
             $increment=1;
         } else {
             $increment=$increment;
         }
        $sql="select nvl(max($field),0) + $increment from $table_name";
        $this->db_query($sql);
        return $this->db_fetch_val();
    }
     
       function db_fetch_array($fetch_type=0,$db="DEFAULT"){
        $result=@oci_fetch_array($this->query,OCI_BOTH+OCI_RETURN_NULLS);
       
           if(!is_array($result))
              return false;
              $this->total_field=OCINumCols($this->query);
                     if($db=="DEFAULT"){
                           foreach($result as $key=>$val){
                                   $result[$key]=trim($val);
                                   $result[$key]=trim(htmlspecialchars($val));
                           }
                     }
           return $result;
       }



       function get_field_name($i){
           return OCIColumnName($this->query, $i+1);
       }


       function get_num_fields() {
           return @ocinumcols($this->query);
       }

       function get_field_type($i, $sql=""){
               return ocicolumntype($this->query, $i+1);
       }
       
       function get_field_size($i, $sql=""){
               return ocicolumnsize($this->query, $i+1);
       }
       

       function total_record(){
          return oci_num_rows($this->query);
       }


       function free(){
          ocifreestatement($this->query);
          ocilogoff($this->connection);
          unset($this);
       }


       function db_fetch_tr ($css="",$colname='y',$add='y',$update='y',$delete='y'){
          if($css!=""){
              $css_val="class=".$css;
          }
          if(!empty($colname)) {
              echo "<tr $css_val>";
              for ($i=0; $i< $this->get_num_fields(); $i++) {
                   echo "<td>".$this->get_field_name($i)."<td>";
              }
              //echo "<td>Update<td>Delete";
              echo "</tr>";
          }
          while($result=$this->db_fetch_array(1)){
                    echo "<tr $css_val>";
                           for ($j=0; $j<$this->get_num_fields(); $j++) {
                               $cname=$this->get_field_name($j);
                                   echo "<td>".$result[$cname]." <td>";
                           }
                    echo "</tr>";
          }

       }


       function get_error_msg($error_no,$msg=""){
          $log_msg=NULL;
          $error_msg="<b>Custom Error :</b> <pre><font color=red>\n\t".ereg_replace(",",",\n\t",$msg)."</font></pre>";
          $error_msg.="<b><i>System generated Error :</i></b>";
          $error_msg.="<font color=red><pre>";
                foreach(ocierror($error_no) as $key=>$val){
                        $log_msg.="$key :  ".$val."\n";
                        $error_msg.="$key : $val \n";
                }

                $error_msg.="</pre></font>";
                return $error_msg;
       }

       function get_error_msg_array($error_no){
          return ocierror($error_no);
       }
}
?>



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