PhpRiot
Become Zend Certified

Prepare for the ZCE exam using our quizzes (web or iPad/iPhone). More info...


When you're ready get 7.5% off your exam voucher using voucher CJQNOV23 at the Zend Store

pg_update

(PHP 4 >= 4.3.0, PHP 5)

pg_update Update table

Description

mixed pg_update ( resource $connection , string $table_name , array $data , array $condition [, int $options = PGSQL_DML_EXEC ] )

pg_update() updates records that matches condition with data. If options is specified, pg_convert() is applied to data with specified options.

Warning

This function is EXPERIMENTAL. The behaviour of this function, its name, and surrounding documentation may change without notice in a future release of PHP. This function should be used at your own risk.

Parameters

connection

PostgreSQL database connection resource.

table_name

Name of the table into which to update rows.

data

An array whose keys are field names in the table table_name, and whose values are what matched rows are to be updated to.

condition

An array whose keys are field names in the table table_name, and whose values are the conditions that a row must meet to be updated.

options

Any number of PGSQL_CONV_OPTS, PGSQL_DML_NO_CONV, PGSQL_DML_EXEC or PGSQL_DML_STRING combined. If PGSQL_DML_STRING is part of the options then query string is returned.

Return Values

Returns TRUE on success or FALSE on failure. Returns string if PGSQL_DML_STRING is passed via options.

Examples

Example #1 pg_update() example

<?php 
  $db 
pg_connect('dbname=foo');
  
$data = array('field1'=>'AA''field2'=>'BB');
  
  
// This is safe, since $_POST is converted automatically
  
$res pg_update($db'post_log'$_POST$data);
  if (
$res) {
      echo 
"Data is updated: $res\n";
  } else {
      echo 
"User must have sent wrong inputs\n";
  }
?>

Changelog

Version Description
5.5.3/5.4.19 Direct SQL injection to table_name and Indirect SQL injection to identifiers are fixed.

See Also

  • pg_convert() - Convert associative array values into suitable for SQL statement

PHP Manual