DB_common::autoPrepare()

DB_common::autoPrepare() – Prepares an INSERT or UPDATE statement based on variables you supply

Synopsis

resource autoPrepare ( string $table , array $table_fields , integer $mode = DB_AUTOQUERY_INSERT , string $where = false )

Description

Automatically builds an INSERT or UPDATE SQL statement so it can later be used by execute() or executeMultiple().

Parameter

string $table

name of the table

array $table_fields

ordered array containing the fields names

Be aware that these fields are assigned ? placeholders, therefore the data you pass to them in the execute() will be automatically escaped and quoted according to the current DBMS's requirements.

integer $mode

type of query to make (DB_AUTOQUERY_INSERT or DB_AUTOQUERY_UPDATE)

string $where

a string to be used in the WHERE clause. This is only used when $mode is DB_AUTOQUERY_UPDATE. The string is put directly into the query, so you must escape and quote literals according to the DBMS's standards.

Return value

resource - resource handle for the query or a DB_Error object on failure

Throws

Possible PEAR_Error values
Error code Error message Reason Solution
DB_ERROR_NEED_MORE_DATA insufficient data supplied The ordered array, which has to contain fields names, is empty. Check and correct your fields names array.
DB_ERROR_SYNTAX syntax error You use an unknown mode. Available modes are only DB_AUTOQUERY_INSERT for INSERT queries or DB_AUTOQUERY_UPDATE for UPDATE queries.
DB_ERROR_NODBSELECTED no database selected No database was chosen. Check the DSN in connect().
every other error code   Database specific error Check the database related section of PHP-Manual to detect the reason for this error.

Note

This function can not be called statically.

Example

Using autoPrepare() in insert mode

<?php

// Once you have a valid DB object named $db...

$table_name   'user';

$table_fields = array('name''country');

$table_values = array('Zoe''France');



$sth $db->autoPrepare($table_name$table_fields,

                        
DB_AUTOQUERY_INSERT);



if (
PEAR::isError($sth)) {

    die(
$sth->getMessage());

}



$res =& $db->execute($sth$table_values);



if (
PEAR::isError($res)) {

    die(
$res->getMessage());

}

?>

Using autoPrepare() in update mode

<?php

// Once you have a valid DB object named $db...

$table_name   'user';

$table_fields = array('name''country');

$table_values = array('Bob''USA');



$sth $db->autoPrepare($table_name$table_fields,

                        
DB_AUTOQUERY_UPDATE"country = 'Japan'");



if (
PEAR::isError($sth)) {

    die(
$sth->getMessage());

}



$res =& $db->execute($sth$table_values);



if (
PEAR::isError($res)) {

    die(
$res->getMessage());

}

?>
Prepares and runs an INSERT or UPDATE query based on variables you supply (Previous) Commits the current transaction (Next)
Last updated: Tue, 21 Oct 2014 — Download Documentation
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