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Posted by robert on 04/25/06 19:39
| preg_replace(/u=/(\d+), 'user='.$user_array["$1"], $buffer)
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| where $1 is back reference integer found in the search. Does that
| clear things up? Thanks for the help!
preg_replace doesn't work that way. what you could do though, is enumerate
your user array and replace from there.
$users[23] = 10242;
foreach ($users as $systemA => $systemB)
{
preg_replace('/u=([\s"\'])' . $systemA . '\\1/', 'user=' . $systemB,
$buffer);
}
i haven't checked the accuracy of the expression but, i think you get the
idea...based on your criteria, even if preg_replace could do what you hint
at in your example, you'd be setting systemA user id's to blank where there
is no corresponding systemB user match...unless that's a desirable
side-effect. the above just wants systemA to either be surrounded by a
space, quote, or tic on either side of the value. however you fix this, the
above will only be replacing as many users as needed...your 15% or so.
hth,
me
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