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No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin '…' is therefor

...der Instead of using setHeader method, response.addHeader("Access-Control-Allow-Origin", "*"); * in above line will allow access to all domains. For allowing access to specific domain only: response.addHeader("Access-Control-Allow-Origin", "http://www.example.com"); Check this blog post. ...
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How to properly URL encode a string in PHP?

...h page, where you type a search query and the form is submitted to search.php?query=your query . What PHP function is the best and that I should use for encoding/decoding the search query? ...
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What is the relative performance difference of if/else versus switch statement in Java?

...ic interface Action { void execute(String input); } And get hold of all implementations in some Map. You can do this either statically or dynamically: Map<String, Action> actions = new HashMap<String, Action>(); Finally replace the if/else or switch by something like this (leav...
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Default visibility of class methods in PHP

...ithout any explicit visibility keyword are defined as public. http://www.php.net/manual/en/language.oop5.visibility.php share | improve this answer | follow ...
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Generic type conversion FROM string

... Wahid Bitar 11.9k1111 gold badges7070 silver badges9898 bronze badges answered Aug 12 '08 at 9:24 lubos haskolubos hasko 23.3k101...
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PHP Fatal error: Call to undefined function json_decode()

Apache is logging PHP Fatal error: Call to undefined function json_decode() . After some googling, it seems this problem is a result of not having the latest version of php. Oddly, running php --version ouputs ...
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Error in exception handler. - Laravel

It's a Laravel-install related question. I have a public-facing Unix server setup: 6 Answers ...
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How do PHP sessions work? (not “how are they used?”)

...when his session is created. it is stored in a cookie (called, by default, PHPSESSID) that cookie is sent by the browser to the server with each request the server (PHP) uses that cookie, containing the session_id, to know which file corresponds to that user. The data in the sessions files is the ...
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hasNext in Python iterators?

... avakaravakar 29.4k88 gold badges5757 silver badges9898 bronze badges 74 ...
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How to prevent form resubmission when page is refreshed (F5 / CTRL+R)

...; Proof of concept here: https://dtbaker.net/files/prevent-post-resubmit.php I would still recommend a Post/Redirect/Get approach, but this is a novel JS solution. share | improve this answer ...