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كود PHP:
dbh = @mysql_connect($dbhost,$dbuser,$dbpassword); if ( ! $this->dbh ) { $this->print_error("خطأ في الإتصال بقاعدة البيانات!هل أنت متأكد من اسم المستخدم وكلمة المرور لقاعدة البيانات?هل أنت متأكد من مستضيف قاعدة البيانات?هل أنت متأكد من سيرفر القاعدة البيانات بأنه يعمل?"); exit; } $this->select($dbname); } // ================================================================== // Select a DB (if another one needs to be selected) function select($db) { if ( !@mysql_select_db($db,$this->dbh)) { $this->print_error("خطأ في اختيار قاعدة البيانات $db!هل أنت متأكد من أن قاعدة البيانات موجودة?هل أنت متأكد من أنك ربطت قاعدة البيانات باسم المستخدم المحدد?"); exit; } } // ================================================================== // Print SQL/DB error. function print_error($str = "") { if ( !$str ) $str = mysql_error(); // If there is an error then take note of it print ""; print "خطأ في قاعدة البيانات -- "; print "$str"; print ""; } // ================================================================== // Basic Query - see docs for more detail function query($query, $output = OBJECT) { // Log how the function was called $this->func_call = "\$db->query(\"$query\", $output)"; // Kill this $this->last_result = null; $this->col_info = null; // Keep track of the last query for debug.. $this->last_query = $query; // Perform the query via std mysql_query function.. $this->result = mysql_query($query,$this->dbh); if ( mysql_error() ) { // If there is an error then take note of it.. $this->print_error(); return "error"; } else { if(is_bool($this->result)){ return $this->result; } // In other words if this was a select statement.. if ( $this->result ) { // ======================================================= // Take note of column info $i=0; while ($i < @mysql_num_fields($this->result)) { $this->col_info[$i] = @mysql_fetch_field($this->result); $i++; } // ======================================================= // Store Query Results $i=0; while ( $row = @mysql_fetch_object($this->result) ) { // Store relults as an objects within main array $this->last_result[$i] = $row; $i++; } @mysql_free_result($this->result); // If there were results then return true for $db->query if ( $i ) { return true; } else { return false; } } } } // ================================================================== // Get one variable from the DB - see docs for more detail function get_var($query=null,$x=0,$y=0) { // Log how the function was called $this->func_call = "\$db->get_var(\"$query\",$x,$y)"; // If there is a query then perform it if not then use cached results.. if ( $query ) { $this->query($query); } // Extract var out of cached results based x,y vals if ( $this->last_result[$y] ) { $values = array_values(get_object_vars($this->last_result[$y])); } // If there is a value return it else return null return $values[$x]?$values[$x]:null; } // ================================================================== // Get one row from the DB - see docs for more detail function get_row($query=null,$y=0,$output=ARRAY_A) { // Log how the function was called $this->func_call = "\$db->get_row(\"$query\",$y,$output)"; // If there is a query then perform it if not then use cached results.. if ( $query ) { $this->query($query); } // If the output is an object then return object using the row offset.. if ( $output == OBJECT ) { return $this->last_result[$y]?$this->last_result[$y]:null; } // If the output is an associative array then return row as such.. elseif ( $output == ARRAY_A ) { return $this->last_result[$y]?get_object_vars($this->last_result[$y]):null; } // If the output is an numerical array then return row as such.. elseif ( $output == ARRAY_N ) { return $this->last_result[$y]?array_values(get_object_vars($this->last_result[$y])):null; } // If invalid output type was specified.. else { $this->print_error(" \$db->get_row(string query,int offset,output type) -- Output type must be one of: OBJECT, ARRAY_A, ARRAY_N "); } } // ================================================================== // Function to get 1 column from the cached result set based in X index // se docs for usage and info function get_col($query=null,$x=0) { // If there is a query then perform it if not then use cached results.. if ( $query ) { $this->query($query); } // Extract the column values for ( $i=0; $i < count($this->last_result); $i++ ) { $new_array[$i] = $this->get_var(null,$x,$i); } return $new_array; } // ================================================================== // Return the the query as a result set - see docs for more details function get_results($query=null, $output = ARRAY_A) { // Log how the function was called $this->func_call = "\$db->get_results(\"$query\", $output)"; // If there is a query then perform it if not then use cached results.. if ( $query ) { $this->query($query); } // Send back array of objects. Each row is an object if ( $output == OBJECT ) { return $this->last_result; } elseif ( $output == ARRAY_A || $output == ARRAY_N ) { if ( $this->last_result ) { $i=0; foreach( $this->last_result as $row ) { $new_array[$i] = get_object_vars($row); if ( $output == ARRAY_N ) { $new_array[$i] = array_values($new_array[$i]); } $i++; } return $new_array; } else { return null; } } } // ================================================================== // Function to get column meta data info pertaining to the last query // see docs for more info and usage function get_col_info($info_type="name",$col_offset=-1) { if ( $this->col_info ) { if ( $col_offset == -1 ) { $i=0; foreach($this->col_info as $col ) { $new_array[$i] = $col->{$info_type}; $i++; } return $new_array; } else { return $this->col_info[$col_offset]->{$info_type}; } } } // ================================================================== // Dumps the contents of any input variable to screen in a nicely // formatted and easy to understand way - any type: Object, Var or Array function vardump($mixed) { echo ""; echo "";
if ( ! $this->vardump_called )
{
echo "ezSQL (v".EZSQL_VERSION.") Variable Dump..\n\n";
}
print_r($mixed);
echo "\n\nLast Query: ".($this->last_query?$this->last_query:"NULL")."\n";
echo "Last Function Call: " . ($this->func_call?$this->func_call:"None")."\n";
echo "Last Rows Returned: ".count($this->last_result)."\n";
echo ""; echo "\n"; $this->vardump_called = true; } // Alias for the above function function dumpvars($mixed) { $this->vardump($mixed); } // ================================================================== // Displays the last query string that was sent to the database & a // table listing results (if there were any). // (abstracted into a seperate file to save server overhead). function debug() { echo ""; // Only show ezSQL credits once.. if ( ! $this->debug_called ) { echo "ezSQL (v".EZSQL_VERSION.") Debug..\n"; } echo "Query -- "; echo "[$this->last_query]
"; echo "Query Result.."; echo "
"; if ( $this->col_info ) { // ===================================================== // Results top rows echo ""; echo ""; for ( $i=0; $i < count($this->col_info); $i++ ) { echo ""; } echo ""; // ====================================================== // print main results if ( $this->last_result ) { $i=0; foreach ( $this->get_results(null,ARRAY_N) as $one_row ) { $i++; echo ""; foreach ( $one_row as $item ) { echo ""; } echo ""; } } // if last result else { echo ""; } echo "(row){$this->col_info[$i]->type} {$this->col_info[$i]->max_length}
{$this->col_info[$i]->name}$i$itemNo Results"; } // if col_info else { echo "No Results"; } echo ""; $this->debug_called = true; } } ?> تنصيب سكربت الدروس العربي الخطوة [3/8] يتم الآن التحقق من بيانات قاعدة البيانات ...
Fatal error: Class 'db' not found in C:\wamp\www\less\install\install.php on line 85
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