Re: regex

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Peter wrote:
I am trying to convert ms access sql to postgresql using php.

I have a sql statement in the form ;-
$sql = SELECT DISTINCT [Table Name].[Column.Name], [Table Name 1].[Column Name 2] etc.

what I want to end up with is $sql = SELECT DISTINCT table_name.column_name, table_name_1.column_name_2, ........

I have managed to get the caps to lower but I cant work out how to put the _ in place of spaces if the spaces are between [ ]. I either end up with S_E_L_E_C ..... or SELECT_DISTINCT_ etc... .

Naturally I have only used part of sql statement and table, column names have been changed. (Think the one I'm trying on is 2000+ characters. So its not a case of set number of words/numbers between [] it could be 2 or it could be 4 etc)

Anyone workout what I am talking about and can help would be appreciated.

Peter

Something along the lines of this?

<?php
error_reporting(E_ALL);
ini_set('display_errors', 1);

$sql = "SELECT DISTINCT [Table Name].[Column Name], ".
	"[Table Name 1].[Column Name 2]";

echo "{$sql}<br />\n";

preg_match_all('%\[([^\]]+)\]%', $sql, $matches, PREG_SET_ORDER);

$change = array();
foreach ( $matches AS $match ) {
	$change[$match[0]] = str_replace(' ', '_', $match[1]);
}

echo '<pre>'.print_r($change,1).'</pre>';

echo str_replace(array_keys($change), $change, $sql);



--
Jim Lucas

   "Some men are born to greatness, some achieve greatness,
       and some have greatness thrust upon them."

Twelfth Night, Act II, Scene V
    by William Shakespeare

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