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What's better at freeing memory with PHP: unset() or $var = null

... name says - unset a variable. It does not force immediate memory freeing. PHP's garbage collector will do it when it see fits - by intention as soon, as those CPU cycles aren't needed anyway, or as late as before the script would run out of memory, whatever occurs first. If you are doing $whatever ...
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submitting a GET form with query string params and hidden params disappear

...ntains the target, where the form should be processed? like: action="index.php?site=search". I'm not sure, if putting the GET parameter in hidden input fields is an god idea. – The Bndr Aug 24 '17 at 13:09 ...
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Uppercase Booleans vs. Lowercase in PHP

When I was learning PHP, I read somewhere that you should always use the upper case versions of booleans, TRUE and FALSE , because the "normal" lowercase versions, true and false , weren't "safe" to use. ...
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How to define an empty object in PHP

...(); A comment in the manual sums it up best: stdClass is the default PHP object. stdClass has no properties, methods or parent. It does not support magic methods, and implements no interfaces. When you cast a scalar or array as Object, you get an instance of stdClass. You can us...
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Count with IF condition in MySQL query

...yer2' AND `ccc_news`.`status` = 'Active' GROUP BY ccc_news.news_id ORDER BY ccc_news.set_order ASC LIMIT 20 share | improve this answer | follow ...
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Use cases for NoSQL [closed]

... and CouchDB as they seem to be getting the most coverage with regard to PHP development and that is my focus. 9 Answers ...
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getting date format m-d-Y H:i:s.u from milliseconds

... php.net says: Microseconds (added in PHP 5.2.2). Note that date() will always generate 000000 since it takes an integer parameter, whereas DateTime::format() does support microseconds if DateTime was created with microsec...
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java.net.ConnectException: Connection refused

...droid emulator by specifying proper URL like http://localhost/my_api/login.php . And I was getting connection refused error" Point to note - When I just went to browser on the PC and use the same URL (http://localhost/my_api/login.php) I was getting correct response so the Problem in my case was t...
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Why does PHP consider 0 to be equal to a string?

... This is due to how PHP does the comparison operation that the == comparison operator denotes: If you compare a number with a string or the comparison involves numerical strings, then each string is converted to a number and the comparison p...
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Java - sending HTTP parameters via POST method easily

...ength = postData.length; String request = "http://example.com/index.php"; URL url = new URL( request ); HttpURLConnection conn= (HttpURLConnection) url.openConnection(); conn.setDoOutput( true ); conn.setInstanceFollowRedirects( false ); conn.setRequestMethod( "POST" ...