Description:
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I am trying to match a question mark in PHP using preg_match() with the following attempt's described in the code section.

Neither work, while following documentation examples.

Reproduce code:
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// String:
$line = "This is pretty much a [url=\"http://www.wiki.org/?WhatIsAWIki\"]Wiki[/url] but with a twist of [BBCode] and a few other site specific [Hacks]";

// Attempt #1:
preg_match_all("/\[(\/?[\w\d\-\_]+(=\"[\w\d\S\s\?]+?\")?)\]/",$line,$parse);

print_r($parse);

// Attempt #2:
preg_match_all("/\[(\/?[\w\d\-\_]+(=\"[\w\d\S\s\\\?]+?\")?)\]/",$line,$parse);

print_r($parse);

Expected result:
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I expected that the values

"url=http://www.wiki.org/?WhatIsAWIki" and "http://www.wiki.org/?WhatIsAWIki" would be picked up from the regex into $parse.

It works with the following PERL one liner:

perl -e '$string = "This is pretty much a [url=\"http://www.wiki.org/?WhatIsAWIki\"]Wiki[/url] but with a twist of [BBCode] and a few other site specific [Hacks]"; @match = $string =~ m/\[(\/?[\w\d\-\_]+(=\"[\w\d\S\s\?]+?\")?)\]/; print "Match: " . join(",",@match) . "\n"'

Match: url="http://www.wiki.org/?WhatIsAWIki",="http://www.wiki.org/?WhatIsAWIki"

Actual result:
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Matches nothing.