Re: Getting arrays from a result set?
От | The Hermit Hacker |
---|---|
Тема | Re: Getting arrays from a result set? |
Дата | |
Msg-id | Pine.BSF.4.21.0008280034130.564-100000@thelab.hub.org обсуждение исходный текст |
Ответ на | Re: Getting arrays from a result set? (Louis Bertrand <louis@bertrandtech.on.ca>) |
Список | pgsql-php |
why not strip off the '{' and '}' from the result string and just do: $pieces = explode (",", pg_Result( $result, 0, "pending")); On Sun, 27 Aug 2000, Louis Bertrand wrote: > The way the session table is set up, I have one record per active > session. When the user comes back for another hit, I retrieve the session > particulars contained in the record based on the sessionID presented in > the GET URL or hidden field in the POST. The sessionID is the primary key. > > I suppose I could create a separate table of pending transactions, with > a sequence to keep them in order, referencing the sessionid. > Is that along the lines of what you were suggesting? > > Thanks > --Louis <louis@bertrandtech.on.ca> > > > On Mon, 28 Aug 2000, The Hermit Hacker wrote: > > > > > why not insert multiple records instead, serialized for order? > > > > On Sun, 27 Aug 2000, Louis Bertrand wrote: > > > > > Hello, > > > > > > I am trying to save an array of strings in a column, but I can't figure > > > out how to retrieve it from within PHP3. What I'm hoping to accomplish is > > > to store a sequence of update SQL statements resulting from a posted form, > > > then output a Confirm (Yes/No) form. If the user clicks Yes, I retrieve > > > the SQL statements from the session table and execute them in a > > > transaction. > > > > > > I added the column: > > > alter table sessions add column pending varchar(240)[]; > > > > > > db=> \d sessions > > > | pending | varchar[] | var | > > > > > > I insert the strings with: > > > db=> update sessions set pending = '{ \'blah\', \'blorg\'}' where > > > sessionid = 'f38ca9c5f28fd13bd9619b13b5d8f2fc'; > > > UPDATE 1 > > > > > > Then the select: > > > db=> select pending from sessions where sessionid = > > > 'f38ca9c5f28fd13bd9619b13b5d8f2fc'; > > > {" 'blah'","'blorg'"} > > > (1 row) > > > > > > Then I do the following PHP code: > > > $selectsql = "SELECT pending" > > > ." FROM sessions WHERE" > > > ." sessionid = '$SessionID'"; > > > $result = @pg_Exec( $conn, $selectsql); > > > if( $result && ( pg_NumRows($result) > 0)) { > > > $transactions = pg_Result( $result, 0, "pending"); > > > echo "<br>pending=" . $transactions; > > > } > > > else { > > > echo "<br>No transactions"; > > > } } > > > > > > This is what I get: > > > pending={" 'blah'","'blorg'"} > > > > > > I suppose I can always tokenize and parse the string, but I'm hoping there > > > is a classier way around this. I'm afraid of using temporary tables > > > because I don't want them cluttering the database when users abandon their > > > sessions. > > > > > > Using PHP3.0.16 and PostgreSQL 6.5.2 on OpenBSD (no, I haven't had time to > > > upgrade yet). > > > > > > Any thoughts? > > > > > > Thanks > > > --Louis <louis@bertrandtech.on.ca> > > > > > > Louis Bertrand http://www.bertrandtech.on.ca/ > > > Bertrand Technical Services, Bowmanville, ON, Canada > > > Tel: +1.905.623.1500 Fax: +1.905.623.3852 > > > > > > OpenBSD: Secure by default. http://www.openbsd.org/ > > > > > > > > > > Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy > > Systems Administrator @ hub.org > > primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org > > > > > > Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy Systems Administrator @ hub.org primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org
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