Re: [PHP-DB] creating mysql functions using php

[Andrew Martin]

Hello,

Here's the procedural code. Surely it's possible to create a MySQL
function through the API?

$link = mysql_connect('localhost', 'root', 'pass');
mysql_select_db( 'test' );
$ret = mysql_query( 'DELIMITER $$ DROP FUNCTION IF EXISTS `anti_space`$$
CREATE FUNCTION  `anti_space` (
inString VARCHAR(1000),
replaceThis VARCHAR(1000),
replaceWith VARCHAR(1000)
)
RETURNS VARCHAR(1000)
DETERMINISTIC
BEGIN
DECLARE _outString VARCHAR(1000) DEFAULT TRIM(inString);
DECLARE _length INT DEFAULT LENGTH(_outString);
DECLARE _doneLoop BOOLEAN DEFAULT FALSE;
DECLARE _lengthNext INT DEFAULT 0;

IF ( _length != 0 ) THEN

WHILE (! _doneLoop AND _length != 0 ) DO

SET _outString = REPLACE( _outString, replaceThis, replaceWith );
SET _lengthNext = LENGTH(_outString);
SET _doneLoop = (_lengthNext = _length);
SET _length = _lengthNext;

END WHILE;

END IF;

RETURN _outString;

END$$

DELIMITER ;', $link );

if( !$ret ) echo mysql_error($link);

exit;

output:

You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use
near 'DELIMITER $$ DROP FUNCTION IF EXISTS `anti_space`$$ CREATE
FUNCTION `anti_spac' at line 1

I've tried putting the delimiter call in it's own query() call, but no
luck so far.

Thanks,


Andy


2008/10/8 Chris [EMAIL PROTECTED]:
 Andrew Martin wrote:

 Hello,

 Is it possible to create a mysql function from php, or is it command line
 only?

 $db = get_db();

 $a = $db-query( DELIMITER $$  );
 echo $db-error;
 // You have an error in your SQL syntax; check the manual that
 corresponds to your MySQL server version for the right syntax to use
 near 'DELIMITER $$' at line 1
 $a = $db-query( 
 DROP FUNCTION IF EXISTS `anti_space`$$
 CREATE FUNCTION  `anti_space` (
 inString VARCHAR(1000),
 replaceThis VARCHAR(1000),
 replaceWith VARCHAR(1000)
 )
 // You have an error in your SQL syntax; check the manual that
 corresponds to your MySQL server version for the right syntax to use
 near '$$ CREATE FUNCTION `anti_space` ( inString VARCHAR(1000),
 replaceThis VARCHA' at line 1

 What's your query method look like?

 What happens if you try using

 mysql_query($query);

 instead of $db-query($query) ?

 --
 Postgresql  php tutorials
 http://www.designmagick.com/



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Re: [PHP-DB] creating mysql functions using php

[Andrew Martin]

Right, problem's obvious really:

There's never any need to use delimiter in an API call, as
delimiters aren't used - separate calls are made instead. So the
following code works just fine:

$link = mysql_connect('localhost', 'root', 'pass');
mysql_select_db( 'test' );
$ret = mysql_query( 'DROP FUNCTION IF EXISTS `anti_space` ');
if( !$ret ) echo mysql_error($link);
$ret = mysql_query( 'CREATE FUNCTION  `anti_space` (
inString VARCHAR(1000),
replaceThis VARCHAR(1000),
replaceWith VARCHAR(1000)
)
RETURNS VARCHAR(1000)
DETERMINISTIC
BEGIN
DECLARE _outString VARCHAR(1000) DEFAULT TRIM(inString);
DECLARE _length INT DEFAULT LENGTH(_outString);
DECLARE _doneLoop BOOLEAN DEFAULT FALSE;
DECLARE _lengthNext INT DEFAULT 0;

IF ( _length != 0 ) THEN

WHILE (! _doneLoop AND _length != 0 ) DO

SET _outString = REPLACE( _outString, replaceThis, replaceWith );
SET _lengthNext = LENGTH(_outString);
SET _doneLoop = (_lengthNext = _length);
SET _length = _lengthNext;

END WHILE;

END IF;

RETURN _outString;

END', $link );

D'oh. Hope that helps someone.


Andy

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