Database Abstraction Layer for PHP https://adodb.org/dokuwiki/ 2026-05-16T22:59:21+00:00 https://adodb.org/dokuwiki/ https://adodb.org/dokuwiki/lib/exe/fetch.php?media=logo.png text/html 2016-03-23T01:04:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://adodb.org/dokuwiki/doku.php?id=v5:userguide:learn_bind:bind_vars&rev=1458695057&do=diff Using Bind VariablesList Of Tutorials Portability Using Bind Variables Description Using bind variables (sometimes known as parameterization) is an important way to prevent SQL Injection attacks, and should be used as a matter of course on any internet-facing web site. In addition, there may be performance improvements in statements executed multiple times. text/html 2016-03-23T01:09:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://adodb.org/dokuwiki/doku.php?id=v5:userguide:learn_bind:bulkbinding&rev=1458695360&do=diff Portability List Of Tutorials Bulk Binding Bulk Binding Some databases, Oracle in particular, offer massive performance improvements in insertion performance when used with 2 dimensional bind arrays. This technique is known as Bulk Binding. Concept Using our previous example, let us assume that we need to insert multiple text/html 2020-12-30T20:29:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://adodb.org/dokuwiki/doku.php?id=v5:userguide:learn_bind:portability&rev=1609360148&do=diff Introduction To Binding List Of Tutorials Bulk Binding Bind Placeholders Across Databases Bind placeholders vary from one database to another, so ADOdb provides a method param() that returns a database specific placeholder. Using the above example, we can write it as a portable statement: $bindVars = array('A','B','C'); $col1Ph = $db->param('col1'); $col2Ph = $db->param('col2'); $col3Ph = $db->param('col3'); $sql = "SELECT * FROM some_table WHERE col1=$col1Ph …