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Digg pg_fetch_object
Fetch a row as an object
(PHP 4, PHP 5)
pg_fetch_object() returns an object with properties that correspond to the fetched row's field names. It can optionally instantiate an object of a specific class, and pass parameters to that class's constructor.
Note:
This function sets NULL fields to
PHP Speed-wise, the function is identical to pg_fetch_array(), and almost as fast as pg_fetch_row() (the difference is insignificant). Parameters
Return Values
An object with one attribute for each field
name in the result. Database
ChangeLog
ExamplesExample 1923. pg_fetch_object() example<?php Code Examples / Notes » pg_fetch_objectlars
When you retrieve the contents of a "timestamp with timezone" field, this will set the environment's timezone variables. Therefore, this is dangerous: $s=$row->mydatefield; $unixtimestamp=postgresqltimestamp2unix($s); echo date("Y-m-d H:i:s",$unixtimestamp); Here, postgresqltimestamp2unix is a function that converts the postgresql timestamp to Unix. The retrieval of the field data in the first line of the example above will influence the timezone used in date() in the third line. ian
This isn't all that useful. If you do, for example, foreach($row as $field) then you still get every value twice! You can do something like this, though: foreach ($line as $key => $cell){ if (! is_numeric($key)){ echo "<td>$key $cell</td>"; } } is is_numeric strict enough? inbox
The result_type arg is either invalid or incorrectly documented, since the "result_type is optional..." paragraph is copied verbatim from pg_fetch_array, and the PGSQL_NUM option is in conflict with the preceding paragraph's, "you can only access the data by the field names, and not by their offsets." michiel
Something I have learned to use: $result=$pg_query (...); $num = pg_numrows($result); for($count=0;$count < $num && $data=pg_fetch_object($result,$count);$count++) { printf("<tr>\n"); printf(" <td>%s</td>\n",$data->foo); printf(" <td>%s</td>\n",$data->bar); printf("</tr>\n"); } ekevu
PostgreSQL boolean true becomes string "t" PostgreSQL boolean false becomes string "f" This is ambiguous, and leads to code duplication. I wonder why aren't the types correctly typed when fetching values. We could at least have an optional parameter to enable that. oracle dot shinoda
If you're wanting to use objects for your results, but are put off because you can't seem to apply a function to each field of the result (like stripslashes for example), try this code: <?php // Code to connect, do query etc etc... $row = pg_fetch_object($result); $vars = get_object_vars($row); foreach ( $vars as $key => $var ) { $row->{$key} = stripslashes($var); } ?> jzago
I use a loop like this: for ($row = 0; $data = @pg_fetch_object ($res, $row); $row++) { // do what you want with the row } robeddielee
I noticed that many people use FOR loops to extract query data. This is the method I use to extract data. <?php @$members = pg_query($db_conn, 'SELECT id,name FROM boards.members ORDER BY name;'); if ($members AND pg_num_rows($members)) { while ($member = pg_fetch_object($members)) { echo $member->name.' ('.$member->id.')'; } } ?> If an error occurs (or nothing is returned) in the above code nothing will output. An ELSE clause can be added to the IF to handle query errors (or nothing being returned). Or a seperate check can be performed for the event that nothing is returned by using an ELSEIF clause. I like this method because it doesn't use any temporary counter variables. |
Change Language
pg_affected_rows pg_cancel_query pg_client_encoding pg_close pg_connect pg_connection_busy pg_connection_reset pg_connection_status pg_convert pg_copy_from pg_copy_to pg_dbname pg_delete pg_end_copy pg_escape_bytea pg_escape_string pg_execute pg_fetch_all_columns pg_fetch_all pg_fetch_array pg_fetch_assoc pg_fetch_object pg_fetch_result pg_fetch_row pg_field_is_null pg_field_name pg_field_num pg_field_prtlen pg_field_size pg_field_table pg_field_type_oid pg_field_type pg_free_result pg_get_notify pg_get_pid pg_get_result pg_host pg_insert pg_last_error pg_last_notice pg_last_oid pg_lo_close pg_lo_create pg_lo_export pg_lo_import pg_lo_open pg_lo_read_all pg_lo_read pg_lo_seek pg_lo_tell pg_lo_unlink pg_lo_write pg_meta_data pg_num_fields pg_num_rows pg_options pg_parameter_status pg_pconnect pg_ping pg_port pg_prepare pg_put_line pg_query_params pg_query pg_result_error_field pg_result_error pg_result_seek pg_result_status pg_select pg_send_execute pg_send_prepare pg_send_query_params pg_send_query pg_set_client_encoding pg_set_error_verbosity pg_trace pg_transaction_status pg_tty pg_unescape_bytea pg_untrace pg_update pg_version |
