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(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] )

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, the name of this function, and anything else documented about this function may change without notice in a future release of PHP. Use this function 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";
  }
?>

Related Function(s)

pg_convert()