removing whitespaces

[rj]

Hello,

I try to remove whitespaces from a string using the preg_replace function
like

preg_replace("/[\t ][\t ]*/"," ",$string);

This works great, but makes no handles all characters in the same way. I
want to preserve data between double quotes. So,
hello world "It is a sunny... world"
shall be reduced to
hello world "It is a sunny... world"

and should not remove the whitespaces between the quotes.

Can someone help me ?

Thanks in advance

Richard

[Janwillem Borleffs]

rj wrote:

This works great, but makes no handles all characters in the same
way. I want to preserve data between double quotes. So,
hello world "It is a sunny... world"
shall be reduced to
hello world "It is a sunny... world"

and should not remove the whitespaces between the quotes.

$str = 'hello world "It is a sunny... world"';

function cb($m) {
if (trim($m[1])) {
return $m[1];
}
return ' ';
}
$str = preg_replace_callback('/(\s+|"[^"]+")/','cb', $str);
JW