如何在两个字符串之间替换字符

Question

I have text like:

$text = 'number="1" body="Are you "special" man?" name="man" code="1"
         number="2" body="Hi said "HaHaHa""?" name="man" code="2"'

I working on it but without any success. I need to replace all " with # in body section. Can somebody help me with this?

So result should be:

$text = 'number="1" body="Are you #special# man?" name="man" code="1"
         number="2" body="Hi said #HaHaHa#?" name="man" code="2"'

Answer 1

Complex solution with preg_replace and preg_replace_callback functions:

$text = 'number="1" body="Are you "special" man?" name="man" code="1"
         number="2" body="Hi said "HaHaHa""?" name="man" code="2"';

$text = preg_replace_callback('/(body=")(.*)(?=" name)/', function($m) {
    return $m[1] . preg_replace('/"+/', '#', $m[2]);
}, $text);

print_r($text);

The output:

number="1" body="Are you #special# man?" name="man" code="1"
         number="2" body="Hi said #HaHaHa#?" name="man" code="2"

Answer 2

I was going along the same lines as RomanPerekhrest :

preg_match_all('/body="(.*?)" /', $text, $matches);

foreach($matches[1] as $find) {
    $text = str_replace($find, str_replace('"', '#', $find), $text);
}

Get all of the body="something" and replace any " that are inside the "" . Replace the original body="something" with the new one.