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What does $$ (dollar dollar or double dollar) mean in PHP?

... EDIT after @Jhonny's comment : Doing a $$$ ? Well, the best way to know is to try ;-) So, let's try this portion of code : $real_variable = 'test'; $name = 'real_variable'; $name_of_name = 'name'; echo $name_of_name . '<br />'; echo $$name_of_name . '<br />'; echo $$$name_of_na...
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How can I remove specific rules from iptables?

..., but this one won't work in a scripted setting when the line number is unknown. So the other solution is more general, and therefore more correct, IMO. – Jeroen Nov 17 '13 at 5:14 ...
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Double Iteration in List Comprehension

... surprised at this: x = 'hello'; [x for x in xrange(1,5)]; print x # x is now 4 – grinch Nov 18 '14 at 17:11 ...
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Is there a fixed sized queue which removes excessive elements?

... UPDATE There are now two such classes available. No need to write your own. See my answer on this page. – Basil Bourque Feb 11 '14 at 10:22 ...
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How to trigger a click on a link using jQuery

...ion (evt) { evt.preventDefault(); alert($(this).attr('href')); }); // now the manual trigger $myLink.trigger('click'); share |
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Flexbox Not Centering Vertically in IE

...ack: center; min-height: 220px; height:100px; } So now we have height style, but the min-height will overwrite it. That way ie is happy and we still can use min-height. Hope this is helpful for someone. ...
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Get Insert Statement for existing row in MySQL

... if you get the error mysqldump: Couldn't execute 'SELECT @@GTID_MODE': Unknown system variable 'GTID_MODE' (1193) gist.github.com/arun057/5556563 – Daniel Schaffer Jul 12 '13 at 22:39 ...
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Anti forgery token is meant for user “” but the current user is “username”

...l not pass validation because the initial token was for anonymous user and now we have an authenticated user with a known username. You have a few options to solve this problem: Just this time let your SPA do a full POST and when the page reloads it will have an anti-forgery token with the update...
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“Unable to find manifest signing certificate in the certificate store” - even when add new key

... I wouldn't do this without knowing the repercussions... does it anyway – barnacle.m Jun 27 '19 at 12:42 ...
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Open Facebook page from Android app?

... Thanks for this, helped me out greatly! Now if only there was a way to do it for twitter – Evan R. Jul 26 '12 at 4:08 3 ...