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Measuring the distance between two coordinates in PHP

...- http://www.codexworld.com/distance-between-two-addresses-google-maps-api-php/ $latitudeFrom = '22.574864'; $longitudeFrom = '88.437915'; $latitudeTo = '22.568662'; $longitudeTo = '88.431918'; //Calculate distance from latitude and longitude $theta = $longitudeFrom - $longitudeTo; $dist = sin(de...
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Show a PDF files in users browser via PHP/Perl

... <?php header('Content-type: application/pdf'); header('Content-Disposition: inline; filename="the.pdf"'); readfile('/dir/to/the.pdf'); ?> – dimassony Jan 13 '11 at 13:10 ...
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Cannot pass null argument when using type hinting

... PHP 7.1 or newer (released 2nd December 2016) You can explicitly declare a variable to be null with this syntax function foo(?Type $t) { } this will result in $this->foo(new Type()); // ok $this->foo(null); // ok $...
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What is 'YTowOnt9'?

Our (PHP) framework sometimes renders hidden inputs with value YTowOnt9 . I can't find that string anywhere in the (huge) codebase, and can't figure out where it came from. I decided to Google for that particular string, and the result surprised me. Over half a million - kind of random - hits. I ...
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PHP: How to remove specific element from an array?

...lse) { unset($array[$key]); } array_search returns false (null until PHP 4.2.0) if no item has been found. And if there can be multiple items with the same value, you can use array_keys to get the keys to all items: foreach (array_keys($array, 'strawberry') as $key) { unset($array[$key])...
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PHP foreach loop key value

....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1834703%2fphp-foreach-loop-key-value%23new-answer', 'question_page'); } ); Post as a guest ...
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Sending a JSON to server and retrieving a JSON in return, without JQuery

... } }; xhr.send(); Handling data in JSON format on the server-side using PHP <?php // Handling data in JSON format on the server-side using PHP // header("Content-Type: application/json"); // build a PHP variable from JSON sent using POST method $v = json_decode(stripslashes(file_get_contents(...
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cleanest way to skip a foreach if array is empty [duplicate]

...oid nesting my code with an unnecessary if statement. If $items is empty php throws an error. 11 Answers ...
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How to store values from foreach loop into an array?

... Declaring $items = array(); before foreach is not even necessary, right? php will just create an empty array – BassMHL Oct 2 '17 at 2:25 ...
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WordPress asking for my FTP credentials to install plugins

... Try to add the code in wp-config.php: define('FS_METHOD', 'direct'); share | improve this answer | follow | ...