June 2002
Intermediate to advanced
800 pages
16h 3m
English
Content preview from PHP and PostgreSQL: Advanced Web ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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11.8. PHP and Transactions
Transactions and locks are strongly related to each other. After you have seen how locks can be treated, you can take a closer look at PHP and transactions. Usually working with transactions is an easy task. However, a closer look is necessary to find out what happens to uncommitted transactions. The next example shows what happens with transactions that are not committed manually:
<?php $dbh = pg_connect("host=localhost user=postgres dbname=phpbook"); if (!$dbh) { echo "error while connecting.<br>\n"; } execute("BEGIN;"); execute("INSERT INTO plant VALUES (6, 'cactus', 'green')"); function execute($sql) { global $dbh; $status = pg_exec($dbh, $sql); if (!$status) { echo "an error has occurred when executing ($sql)<br>\n"; ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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