pg_select

(PHP 4 >= 4.3.0, PHP 5)

pg_select --  Select records

Description

mixed pg_select ( resource connection, string table_name, array assoc_array [, int options] )

pg_select() selects records specified by assoc_array which has field=>value. For a successful query, it returns an array containing all records and fields that match the condition specified by assoc_array.

If options is specified, pg_convert() is applied to assoc_array with the specified flags.

Waarschuwing

Deze functie is EXPERIMENTEEL. Dat betekent, dat het gedrag van deze functie, deze functienaam, in concreto ALLES dat hier gedocumenteerd is in een toekomstige uitgave van PHP ZONDER WAARSCHUWING kan veranderen. Wees gewaarschuwd, en gebruik deze functie op eigen risico.

Parameters

connection

PostgreSQL database connection resource.

table_name

Name of the table from which to select rows.

assoc_array

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 retrieved.

options

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

Return Values

Geeft TRUE terug bij succes, FALSE indien er een fout is opgetreden. Returns string if PGSQL_DML_STRING is passed via options.

Voorbeelden

Voorbeeld 1. pg_select() example

<?php
  $db
= pg_connect('dbname=foo');
  
// This is safe, since $_POST is converted automatically
  
$rec = pg_select($db, 'post_log', $_POST);
  if (
$rec) {
      echo
"Records selected\n";
      
var_dump($rec);
  } else {
      echo
"User must have sent wrong inputs\n";
  }
?>

Zie ook

pg_convert()